Filter results

Results (228)

Sort by:

Select all Select all

Page 1

Wadhah Garhuom - Improving the robustness of the finite cell method for problems with large deformations

No access

Select

Wadhah Garhuom

Improving the robustness of the finite cell method for problems with large deformations

Series: Mechanik/Bruchmechanik

Volume 359 2024

Results in this title

Bibliography S. 135-152

„… High-Order Finite Element and Isogeometric Methods, FrauenchiemseeIsland, Germany, 2014.[15] T. Bog, N …” „… . High-Order Finite Element and Isogeometric Methods 2019.[105] L. Kudela, N. Zander, T. Bog, S …” „… analysisapplied to a high-order finite element method. Journal of Computational Physics,230:5564–5586, 2011.[118 …”

Non-negative moment fitting quadrature for cut finite elements and cells S. 27-58

„… standard discretizationmethods such as the finite element method. Nevertheless, the simplification in the …” „… as the blending function method usedin the context of high-order FEM. In doing so, at each tree-depth …” „… 4 Non-negative moment fittingquadrature for cut finite elements andcellsImmersed boundary domain …”

Remeshing strategy for large deformations in the FCM S. 89-129

„… finite element method, particu-larly when the system contains complicated geometries and significant …” „… formulation (ALE). The firstwho worked on this, among others, in the context of the finite element method are …” „… remeshing method, Lee and Bathe [109]recommended the use of a macro-element mesh generator to produce a new …”

Titelei/Inhaltsverzeichnis

„… the finite cell method (FCM),which combines the fictitious domain approach with hierarchic high-order …” „… Finite-Elemente-Methode (FEM) dar. Die Finite-Cell-Methode (FCM) kombiniert den fiktiven Gebietsansatz mit hierarchischen …” „… Wadnah GarhuomImproving finite cell method robustnessReihe 18 | Nr. 359Reihe 18 …”

Eigenvalue stabilization technique to increase the robustness of the FCM S. 59-88

„… ], andLoehnert and Beese [116] in the context of the extended finite element method (XFEM).Recently, the method …” „… problematic high-order modes of the cut cells are excluded resulting in aconsiderable improvement in the …” „… stabilize itusing the α-method. Here, the domain is discretized with one cell and a quadrature order ofpq …”

Introduction S. 1-5

„… 1 Introduction1.1 MotivationThe finite element method (FEM) is a numerical approach used to solve …” „… inthe work of Saul’ev [140]. In addition, XFEM (extended finite element methods [119]), andEPUM …” „… as the finite cell method (FCM)[29, 47, 48, 126, 142], CutFEM [21–24], or CutIGA [53], gained great …”

The finite cell method S. 17-26

„… finite cell methodwhich combines the fictitious domain concept with the use of high-order hierarchic …” „… 3 The finite cell methodIn recent years, there has been a growing interest in fictitious or …” „… shapefunctions. The term finite cells is introduced to distinguish them from the body-conformingfinite elements …”

doi.org/10.51202/9783186359186

VDI Wissensforum GmbH - International Conference on Gears 2022

No access

Select

VDI Wissensforum GmbH (ed.)

International Conference on Gears 2022

Series: VDI-Berichte

Volume 2389 2022

Results in this title

A. Zhang, J. Wei, M. Cao, B. Peng Dynamic modeling and accuracy evaluation method for complex irregular components of aviation transmission S. 573-584

„… geometric features and is usually modeled by the finite element (FE) method. However, the huge number of …” „… combination II can obtain higher calculation accuracy than other combinations. Both the beam element method …” „… methods Order FE method Condensation method (4 nodes) Beam element method (11 nodes) Frequency Frequency …”

R. Chen, D. Qin, C. Liu Study on electromechanical coupled dynamic characteristics of transmission system of wind turbine S. 763-778

„… variable speed and variable-load conditions, a finite element model of the generator, and voltage vector …” „… equivalently simplified into three subsystem models—the gear system dynamic model, the finite element model of …” „… medium-speed stage 1.2. Permanent magnet synchronous generator model A finite element model of a PMSG that …”

A. Mihailidis, A. Psarros, I. Nerantzis FE tooth contact analysis of crossed helical gear drives considering misalignments and deviations S. 597-608

„… load-carrying capacity. [2] Mihailidis A., Korbetis G., Drivakos N., Nerantzis I., Finite element method …” „… Fig. 1: Gear data of the modelled gear pair 3. Finite Element Modelling 3.1 Meshing The initial mesh …” „… Table 2, results for normal, mean pressure and contact area are presented. In finite element analysis …”

B. Guilbert, P. Velex Influence of thin rimmed/-webbed gears on transmission dynamic behaviour – Approximate dynamic factor formula S. 523-532

„… modal synthesis method”, Finite Elements in Analysis and Design, 1(1985) pp.153-164. [19] Guilbert B …” „… 2D spur gear model combining finite element and analytical models [10]. Abousleiman et al. [11] and …” „… Bettaieb et al. [12] inserted the results of condensed 3D finite element models of planet-carriers and gear …”

N. Hessinger, M. Braunstingl, H. Bansal Advanced use of DOE in gear geometry optimization S. 281-286

„… gearset misalignment, a Finite Element Analysis (FEA) model is set up for an existing application of the …” „… complete assembly of a passenger car rear axle. Results of the finite element analysis deliver a clear …” „… variants is then used to perform a loaded Tooth Contact Analysis (TCA) with a finite element TCA, utilising …”

X. Zheng, Y. Hu FE analysis and predication on the traveling wave – resonance of aero-gears S. 915-926

„… resonance is typically associated with high frequency of gear engagement. Thus the higher order of resonance …” „… higher order frequency, criteria of traveling wave resonance equivalently expressed as: ? , k=0.5 …” „… . Results shows the method can provide effective resonance prediction of high speed VDI-Berichte Nr. 2389 …”

B. van Wissen, M. Kanters, F. Mitsuzuka, K. Iwanaga, M. Meuwissen, A. Hasanovic Predicting static and fatigue performance of fiber reinforced plastic gears S. 1083-1098

„… fiber reinforced plastic gears is obtained using dedicated gear testers and advanced finite element …” „… time at high temperatures. In order to be successful in gear applications it is key to accurately …” „… finite element simulations. However, not in all cases one has the opportunity to take fiber orientation …”

W. Kassem, M. Oehler, B. Sauer, S. Schmidt, J. Hausmann Investigation of the time-dependent behavior of plastic gears with local tribological simulation S. 1281-1294

„… polyalphaolefin-based (PAO) gear oil of viscosity class ISO VG 100 is used. 3. Simulation Methods Finite Element …” „… developed computational tool provides full coupling between finite element analysis (FEA) and local …” „… viscoelastic material behavior. In [5], a computational environment is presented that uses finite element …”

P. Barreiro, S. Pfrimmer, G. Armutcu, J. Hermes Quality improvement of an aluminum gearbox housing by implementing additive manufacturing S. 1429-1446

„… Finite-Elemente-Methode im Maschinen- und Fahrzeugbau. Springer Vieweg Wiesbaden. ISBN: 978-3-658-06054-1 [14] Ampower …” „… element methods during the design phase, since they are suitable within the conception stage for any part …” „… , the filled die is held at a high pressure in order to assure a good filling during shrinkage of the …”

C. Schonke, T. Magdy, K. Daubach, W. Kassem, M. Oehler, O. Koch Simulation of high torque density gearbox noise excitation S. 837-848

„… finite-element-methods (FEM) to calculate the flexibility of the gears. However, these programs often still rely on …” „… . But, due to the high modeling effort and long calculation times, this method has not yet been widely …” „… gears. Elastic effects can be observed in higher orders only. 7.2 Weakened gears Fig. 11: Comparison …”

F. Mieth, C. Ulrich, B. Schlecht Stress calculation on bevel gears with FEM influence vectors S. 585-596

„… method, the contact simulation is a higher class simulation model that includes the moving contact line …” „… Programmdokumentation „Mechanical APDL 19.0 Theorie Reference“ [6] Rieg, F.; Hackenschmidt, R.: Finite Elemente Analyse …” „… modern gear boxes elastic gears are used. In order to be able to carry out an optimal gear design with …”

J. Gotz, F. Siglmuller, M. Furst, M. Otto, K. Stahl Experimental investigation of the dynamic load sharing of planetary gearboxes S. 409-420

„… finite element calculations for the overall deformations of the gearbox components [16, 19, 22]. Kahraman …” „… . Through more complex models with full finite element calculations, Kahraman and Vijayakar [19] (spur …” „… gearboxes are used for a wide range of high-performance applications in the automotive, aviation and marine …”

J. Hochrein, M. Trubswetter, M. Otto, K. Stahl Direct flank geometry calculation for face gears S. 1447-1460

„… elaborate Finite Element Method simulations. The basis for the tooth contact simulation and the development …” „… a precise geometry is necessary, such as Finite Element Analysis or measuring on Coordinates …” „… the possibility for high transmission ratios in small construction spaces. An involute pinion-type …”

A. Gebhard, W. Kassem, M. Oehler Cylinder-on-ring model wear tests as an input data source for the simulation of friction and wear of plastic gears S. 1133-1148

„… simulationThe gear simulation combines a finite element analysis (FEA) to determine the gear deformation and …” „… wear rates were often one to two orders of magnitude greater than at medium to high normal forces and …” „… ., Van Wissen, B., and Nickel, R.: Relevant tribological testing method for high performance plastic …”

A. Sitzmann, T. Tobie, K. Stahl, S. Hoja, S. Schurer Deep nitriding – contact and bending strength of gears with increased nitriding hardening depth S. 875-890

„… level and the gear size. In order to achieve a high fatigue resistance and durability of nitrided gears …” „… order to avoid thick compound layers, nitriding was conducted as two-stage treatment with a higher …” „… larger gear sizes could be expected, which will be discussed in this publication. In order to evaluate …”

L. Ryali, D. Talbot Dynamic load distribution of planetary gear sets subject to both internal and external excitations S. 389-408

„… sparse. VDI-Berichte Nr. 2389, 2022 389Commercially available finite element softwares require …” „… ]. Improving upon this, hybrid models [5–8] have been proposed which employ a combination of finite element and …” „… , A., “Finite Elements Contact Modelling of Planetary Gear Trains,” IOP Conference Series: Materials …”

I. Moriwaki, K. Tatsuoka, K. Kobayashi, W. Nakamoto, D. Iba, A. Ueda Load-capacity evaluation of polyacetal (POM) internal gears according to JIS B 1759:2016 S. 1161-1172

„… A. Ueda, Finite Element Analysis of Gear Tooth Stress with Tooth Flank Film Elements, Proceedings of …” „… according to JIS B 1759. As a result, POM internal gears showed a higher load capacity than expected from …” „… the higher load capacity, i.e., the ratio of contact ratio for loaded teeth to geometrical one and an …”

I. Hong, Z. Teaford, A. Kahraman A comparison of gear tooth bending fatigue lives from single tooth bending and rotating gear tests S. 45-74

„… finite element based tooth root stress prediction solver as part of a gear tooth load distribution model …” „… teeth. In order to prevent this failure, gear designers must either have an accurate set of predictive …” „… high cycle or very high cycle gear tooth bending fatigue failure is limited. The most sophisticated …”

N. Tros, J. Brimmers, T. Bergs Approach for multiscale modeling the thermomechanical tool load in gear hobbing S. 1489-1502

„… . Prod. 1(1):51–58 13. Liu W et al (2013) A Gear Cutting Predictive Model Using the Finite Element Method …” „… ]. For a detailed analysis of the thermomechanical load in the gear hobbing process, Finite Ele-ment …” „… fixed mesh, this method is insensitive to large deformations and no distortion of the elements occur [19 …”

B. Legrady, M. Taesch, G. Tschirschnitz, C. F. Mieth Prediction of churning losses in an industrial gear box with spiral bevel gears using the smoothed particle hydrodynamic method S. 651-664

„… gearboxes by finite volume CFD method. In: Tribology International 109, 2017, pp. 346-354. [15] Concli, F …” „… Gearboxes by the Finite Volume CFD Method. In: Lubricants. 6. 47. 2018. [33] SKF Bearing Select (1.2.67 …” „… particle hydrodynamic methodDipl.-Ing. B. Legrady, M. Sc. Markus Taesch,Dipl.-Ing. G. Tschirschnitz, Dive …”

S. Ebrahimi, J. Langhart, D. Marano NVH calculations for drivetrains, a methodology for selection of the best suitable calculation approach for a specific purpose S. 75-90

„… modal analysis of the finite element model of the shafts. However, in KISSsoft the analytical model of …” „… frequencies coincide with any of the system eigenfrequencies [2]. Therefore, analysis of the high …” „… is based on analytical methods, the calculation is very fast. This allows the engineer to evaluate …”

E. Lamaj, J. Blomeke, F. Rudolph, J. Hermes A comprehensive, fully parametrized calculation model for improved helical-hypoid gearbox efficiency S. 825-836

„… calculation method is necessary. In this paper, such a method is demonstrated by the example of a high ratio …” „… material and quality of all machine elements. For a complete modular system of gearboxes, this task is very …” „… time-consuming if applied to each individual machine element and gearbox in turn. Thus, a fully automated …”

J. Thomas, C. Gosselin, F. Mieth Design, strength calculation by ISO10300 and loaded TCA of forged differential bevel gears S. 157-170

„… method for the high production volumes required in the automotive industry. In previous presentations [1 …” „… method. Typically, at Toe, the root becomes parallel to the axis of rotation in order to improve tooth …” „… Softwares Inc., Quebec, Canada; Frederik Mieth, Dipl.-Ing., Institute of Machine Elements and Machine …”

P. Abele, J. Hermes, J. Lechner Development of a digital ecosystem for a servo planetary gear unit system to provide design automation opportunities S. 1503-1516

„… or to perform finite element analyses. Traditionally, prototypes are used to exemplify essential …” „… maintenance applications in operation. It is obvious that there are engineering-to-order (ETO) sales requests …” „… opportunities in order to make design modifications, ETO products and routine design tasks robust and fast. The …”

P. Tenberge, R. Uelpenich, P. Dong, R. He Very fast tooth root optimization – general tool geometry for much smaller tooth root stresses S. 457-468

„… considerably from these calculated values. For very accurate calculations, the finite element method is used to …” „… gear at the point of highest load with its tool tip corner. Mostly, the tool corner is rounded …” „… local tooth flank geometry. In the standard, only the value at this supposedly highest-loaded point is …”

doi.org/10.51202/9783181023891

Jorrid Lund - Partitioned Fluid-Structure Interaction Simulation of Maritime Applications

No access

Select

Jorrid Lund

Partitioned Fluid-Structure Interaction Simulation of Maritime Applications

Series: Mechanik/Bruchmechanik

Volume 360 2024

Results in this title

Structural mechanics S. 5-20

„… finite ele-ment method (FEM), which is the most common technique for solving complex structuralproblems …” „… . The theory of structural mechanics and nonlinear finite element method is partof many textbooks such …” „… fluid mechanic problems,namely the finite volume method (FVM) and the boundary element method (BEM …”

Wave energy converter S. 62-70

„… with other methods.Fig. 6.6b shows the strain and the stress for a mooring element attached to one of …” „… accuracy that can hardly be obtained with other methods.Fig. 6.6b shows the strain and the stress for a …” „… submerged body. The submergedbody is designed to have high resistance against lifting forces, providing …”

Bibliography S. 124-138

„… 249-252 (2012) 28–41,higher Order Finite Element and Isogeometric Methods. doi:10.1016/j.cma …” „… turbines,Computer Methods in Applied Mechanics and Engineering 249-252 (2012) 28–41,higher Order Finite Element and …” „… /j.camwa.2016.07.031.[27] P. Wriggers, Nonlinear finite element methods, Springer-Verlag, 2008. doi …”

Fluid-structure interaction S. 35-48

„… time-step size. Higher order polynomials usually do notlead to a better approximation, which is due to …” „… for a polynomial of order 0, 1, and 2 andfor the assumption of a constant time-step size. Higher order …” „… a finite element. In this case, the shape functions inherently definethe solution inside the element …”

Fluid mechanics S. 21-34

„… the finite volume method (FVM) and the boundary element method (BEM). Thetheory of fluid mechanics and …” „… _BRO_FB_18-360_mP.indd 35 18.04.24 06:263 Fluid mechanics3.2 Finite volume method for the solution of …” „… incompressibleNavier-Stokes equations (Eqs. (3.2) and (3.5)) is the finite volume method (FVM). Theidea of the FVM is to apply …”

doi.org/10.51202/9783186360182

VDI Wissensforum GmbH - International Conference on Gears 2023

No access

Select

VDI Wissensforum GmbH (ed.)

International Conference on Gears 2023

Series: VDI-Berichte

Volume 2422 2023

Results in this title

C. Dongu Im, W.-J. Chung, J.-H. Park, D.-J. Moon, Pfor. Y.-J. Park The effect of working surface deviation on transmission error in helical gears S. 1125-1134

„… data, the analysis model was built using commercial software. The finite element method (FEM) was used …” „… from the involute tooth profile. Various methods, such as experimental, finite element, and analytical …” „… other hand, the finite element method offers an advantage by accurately incorporating manufacturing and …”

B. Guilbert, D. Dureisseix, P. Velex Hybrid models for the simulation of displacements and stresses in lightweight gears S. 315-328

„… und Spannungen in den Getriebekörpern erfassen kann. Finite Elemente werden mit kondensierten …” „… hybriden Zahnradmodellen im Gegensatz zu vollständigen Finite-Elemente-Simulationen unterstreicht. Abstract …” „… gear bodies. Finite elements are combined with condensed sub-structures, lumped parameter elements …”

I. Atanasovska, D. Momcilovic Analysis of new tooth profile design based on the biomimetics principles S. 945-956

„… values and increase the tooth root strength. The Finite Element Method is used for stress and strain …” „… capacity using the Finite Element Method, Proc IMechE Part C: J Mechanical Engineering Science 224(11 …” „… gradients obtained by Finite Element Analysis. The analysis of material variation influence on the tooth …”

C. Karampatzakis, A. Mihailidis, A. Mantzaflaris, C. Provatidis Contact simulation of tooth flanks using Isogeometric Analysis S. 413-428

„… that in less time than more complex methods. The Finite Element Method (FEM) has been widely used to …” „… expense of increas-ing complexity and solution time. Some shortcomings of the finite element method for …” „… Contact simulation of tooth flanks using Isogeometric AnalysisLeveraging the power of high order …”

I. Gonzalez-Perez, A. Fuentes-Aznar Improvement of the transmission efficiency in electric vehicles by using double staggered helical gears with shortened teeth S. 1083-1090

„… efficiency is based on the application of the finite element method through two algorithms for …” „… helix angles 7.5 and 15 . The finite element method is applied to the determination of the frictional …” „… nodes of the finite element model. A constant friction coefficient is being considered between the …”

A. Beinstingel, F. Haringer, W. Sigmund, M. Heider, B. Pinnekamp, S. Marburg Investigation of Sound and Vibration Behavior of Cylindrical Gears S. 599-618

„… element method (BEM) [17] in order to get an impression of the informative power of the ERP statement …” „… out with the finite element method (FEM) as described in [22]. This computation is performed in each …” „… not relevant for this acoustic kind of high performance gears, the “arc-length method” is applied here …”

G. Devaraj Vibration reduction of planetary gear drive using mesh phasing: modelling and experimental validation S. 157-174

„… model used is based on finite element method and non-linear contact implemented in ROMAX R18, this model …” „… of the system is predicted using finite element models, and then operational experimental bench tests …” „… Nm load case is studied, the transmission error is calculated using a finite element with non-linear …”

J. Zheng, D. Qin, C. Liu A Novel Dynamic Modeling Method of High-Speed Thin-Rimmed Gear Transmission S. 1279-1286

„… A Novel Dynamic Modeling Method of High-Speed Thin-Rimmed Gear Transmission Ph.D student Jiayu …” „… and finite element model (FEM) and then carried out simulation analysis and experimental studies for …” „… deformation on the dynamic characteristic of the gear transmission at high speed are studied. Furthermore, the …”

I. Criscuolo, F. Carneiro, G. Guimarães, R. Rego, J. Mascheroni Indirect Selective Laser Sintering: Modeling and analysis of surface densification by shot peening S. 1681-1698

„… stress interaction in gear manufacturing chain using the finite element method. Dissertation of Master of …” „… higher densities, infiltration with other elements and post-process sintering is performed. Even after …” „… localized plasticity deformation induced by shot peening, a finite element (FE) model was developed through …”

S. Chen, C. Liu, D. Qin Forward Performance-driven Design of Gear Parameters S. 211-226

„… than symmetric gears. The highest-ranked gear is superior to the gear designed by conventional method …” „… existing research, the finite element model of gear is a 3-VDI-Berichte Nr. 2422, 2023216tooth model, and …” „… the finite element model setting is shown in Fig. 5 The maximum value of bending stress Fmax is taken …”

J. Sanchez-Espiga, A. Diez-Ibarbia, M. Iglesias, A. Fernandez-del-Rincon, F. Viadero, J. Calvo-Irisarri, A. Fernandez-Sison Statistical study of the mesh load factor of planetary gear transmissions affected by inherent manufacturing errors S. 139-156

„… finite-element models with analytical formulations. This model works in two parallel lines. On the one hand, the …” „… contact. On the other hand, the contact problem is solved hybridly. Firstly, several finite-element models …” „… distortion related to the application of a point force in a finite-element model disappears by using this …”

F. Concli, M. N. Mastrone Latest advancements in the lubrication simulations of geared systems: a technology ready for industrial applications S. 499-518

„… low-quality elements. While the domain to be re-meshed results higher, the better control over the mesh size …” „… the finite volume CFD method,” Lubricants, vol. 6, no. 2, p. 47, 2018. [59] H. Liu, T. Jurkschat, T …” „… [1] improved the formulation by Ohlendorf to consider high immersion depths and low tangential speeds …”

M. Rothemund, M. Otto, K. Stahl Applicability of classic analytical calculation approaches for the design of plastic gears S. 1483-1498

„… the finite element (FE) or boundary element (BE) method, which can account for a variety of influences …” „… .; Seabra, J. H. O.: Finite element method model to predict bulk and flash temperatures on polymer gears …” „… show a lower pressure than the higher-quality calculation methods. This can be attributed to the …”

G. Vasileiou, C. Vakouftsis, C. Kalligeros, V. Spitas, C. Papalexis, A. Tsolakis, P. Zalimidis Continuous prestressed reinforcement of plastic gear teeth and its effect on bending strength vs conventional reinforcement S. 1375-1388

„… . Both the finite element (FE) simulations and the experimental investigation carried out in this study …” „… value results in very high stress reduction in the order of 74% (more than doubling their strength …” „… plastic gear teeth in order to increase their bending strength. Contrary to conventional and industrial …”

B. Devaux, C. Hamon, S. Montani Evaluation of specialty polymer performances in gear applications and the bias between modeling and testing approaches S. 1515-1532

„… that can be later used in our Finite Element analyses. Fig. 3: 3D scan of the real geometry compared to …” „… initial profile 3. Wear prediction using the MEGT finite element approachThe objective is here to …” „… physical testing for future customer applications. This FE method involves the notion of wear energy …”

E. Grabovic, A. Artoni, M. Gabiccini, E. Ciulli Exploration of trade-offs between NVH and efficiency in bevel gear design S. 853-880

„… how adjusting higher-order motions associated with the cradle radial setting and the modified roll …” „… , higher-order motions associated with the coefficients of the modified vertical and helical motions are …” „… meshing. Mermoz et al. [14] used accurate finite element analyses to carry out LTCA and determine the …”

M. Vivet, A. Rezayat, J. Verhoogen, K. Kucukcoskun, S. Donders Numerical analysis of bevel gear transmission acoustic emission using a 3D gear contact force model within a multibody system dynamics simulation environment S. 689-702

„… functions in the Finite Element Method. These transfer vectors, which link the coupling surface and the …” „… necessary data is precomputed (prior to a dynamic simulation) using a finite element (FE) model of the …” „… that has a gear blank with lightweight features (in the form of holes). The gear contact element …”

W. Kassem, J. Müller, M. Oehler, O. Koch Analytical tooth root stress calculation for short fiberreinforced plastic gears S. 1361-1374

„… with numerically intensive methods, such as finite element analysis (FEA), which require a lot of …” „… ., J. Müller, M.Sc., Jun. Prof. Dr.-Ing. M. Oehler, Prof. Dr.-Ing. O. Koch,Chair of Machine Elements …” „… analytical method, based on the lamination theory for fiber composites, that considers the inhomogeneous …”

D. Gallagher, E. Wiita, R. Weidig Improved Method for Validation of Root Stress in Polymer Gears S. 1333-1350

„… finite element analysis (the DIN / ISO method) [2]. Gears manufactured from synthetic polymer (plastic …” „… Method B, that can lead to slightly higher calculated stresses than Method B [6]. Therefore, in this …” „… order to obtain data points for progressively higher numbers of cycles. Once a complete set of data has …”

I. Gonzalez-Perez, A. Fuentes-Aznar, J. Calvo-Irisarri, N. Bilbao-Handley, X. Lopez-Fuentes, A. Fernandez-Sison Evaluation of the effect of the rim thickness on the root stress cycle of helical planet gears with integrated rollers S. 553-568

„… gear models. In [10], a five-tooth finite element model with the full load at the highest point of …” „… of thin rim spur gears by finite element method. Bulletin of JSME, Vol. 24, 193-23, 1981. [2] N. Arai …” „… of the fillet of the central tooth of the finite element models and along the cycle of meshing. With …”

C. Kunik, J. Kunert Wetting and oil flow analysis of planetary gearboxes using oil flow simulations S. 467-484

„… advances in high performance computing, two methods have become established. The most widely used approach …” „… in numerical fluid mechanics is the Finite Volume Method (FVM). It is based on the grid-based …” „… contrary to the Finite Volume Method, the “Smoothed Particle Hydrodynamics” method (SPH) do not use any …”

J. Langhart, S. Ebrahimi, T. Kelichhaus A comparison of time and frequency domain approaches for NVH S. 583-598

„… connected to the surface of the bores by using RBE3 – elements in order to reduce the stiffening effects of …” „… order differential equations, which are then solved by integration methods using numerical time …” „… frequency domain approaches differ in the calculation methods. The frequency domain approach uses algebraic …”

B. Černe, N. Vukašinović, D. Zorko In-situ experimental methods for measuring tooth meshing displacements and wear during polymer gear tests using a high-speed camera with microscopy optics S. 1563-1580

„… obtainable. To this end, numerical simulation methods, like the finite element method, are often used as …” „… , Finite element method model to predict bulk and flash temperatures on polymer gears, Tribology …” „… novel in-situ, high-speed camera-based methods for the evaluation of in-mesh gear tooth displacements …”

P. Chavan, M. Lutz Validation of an industrial gearbox model for predicting vibro-acoustic behavior S. 619-632

„… was derived from a corresponding Finite Element Method (FEM) model. By comparing the resulting surface …” „… the significantly longer simulation times, the BECAL Force Element is the preferred method for …” „… commercial MBS software and the validation is conducted in increasing order of complexity of components. For …”

A. Miltenovic, M. Banic Influence of misalignment of large cylindrical gears on contact pattern in operation S. 1257-1266

„… analyse misalignment of large cylindrical gears with thermal images and with Finite Element Method …” „… smaller size gear sets. The main problem of the gear sets is mounting which need to be proper in order to …” „… the gear across tooth for “gear 1” VDI-Berichte Nr. 2422, 2023 1259The highest temperature measured on …”

S.-J. Tsai, Q.-Y. Zhuang, L.-C. Chang Design and analysis of compound stepped planetary gear drives for better transmission performances S. 537-552

„… loading, similar to finite element analysis [9]. The contact pattern with stress distribution of gear …” „… understood from the order of harmonics in Figure 8. The amplitudes of NLTE at the high-speed meshing …” „… frequency are lower than those at the low-speed meshing frequency, and the amplitude of higher order tends …”

J. Lövenich, M. Zalfen, D. Mevissen, J. Brimmers, C. Brecher Crack growth based tooth root life prediction model – an influence quantity analysis S. 109-124

„… mechanical parameters is of high importance. In order to be able to transfer fracture-mechanical lifetime …” „… turbo gearbox applications is the high number of load cycles reached by the gearbox components …” „… the very high cycle fatigue (VHCF) range must be known as precisely as possible. Most VHCF SN-curve …”

B.-S. Kim, D. Im, J.-H. Park, W.-J. Chung, Y.-J. Park Development of Optimal Design Program for Macro-Geometry of Planetary Gear Set using Multi-Objective Optimization Algorithm S. 1181-1194

„… using a finite element model. Since fast calculation is required to execute the multi-objective …” „… their ability to provide a high gear ratio while occupying minimal space. This attribute makes them …” „… design of gears, there is a method of conducting a parameter study for the design variables in the entire …”

L.-C. Chang, Q. Y. Zhuang, S.-J. Tsai, J.-F. Hochrein, S. Landler, M. Otto, K. Stahl Comparing the contact characteristics of involute gear/ eccentric cycloidal gear calculated by various loaded tooth contact analysis models S. 397-412

„… usefully by utilizing the loaded tooth contact analysis (LTCA) models. Among various LTCA methods, finite …” „… element method (FEM) is a popular method for analyzing contact problem of gear pair, but is not suitable …” „… the proposed LTCA model, are compared with the results obtained from finite element analysis using the …”

C. Herzog, D. Drummer Influence of the injection molding process on the tooth deflection of plastic gears during operation S. 1435-1448

„… operation.Finite element analyses [6] show that load sharing increases with lower elastic modulus. Due to load …” „… a high loading torque and a lower measuring torque.The newly developed measurement principle was …” „… E2.Walton and Shi [7] reviewed different analytical methods, all based on the lewis equation (2 …”

F. Mieth, D. Tazir Local load capacity analysis for the design of a balanced flank modification for cylindrical gears according to bevel gear procedures S. 927-944

„… principle. Compared to a numerical solution using a universal finite element contact solver, the calculation …” „… , FVA-GmbH, Frankfurt, Germany Abstract In order to be able to carry out an optimal gear design with the aim …” „… will demonstrate the benefits of local methods and how they can assist in the design of flank …”

S. Matkovič, D. Šeruga, M. Nagode, M. Kalin Prediction of tooth root fatigue failure of polymer gears for dry and oil lubricated contact and its comparison to experimentally obtained results S. 1301-1318

„… specimen experimental data, the stress-strain response obtained using finite elements, and multiaxial …” „… method, the crack and crack growth was not observed at higher loads, this does not mean that the crack …” „… reason behind time inefficiency is the length of tests that needs to be performed in order to …”

L. Bonaiti, M. Monti, C. Gorla, M. Geitner, T. Tobie, K. Stahl The consequences of different methodologies for the elaboration of pulsator test results with respect to the load spectrum assessment of gears S. 33-52

„… - Life time statistics – Statistical methods for estimation of the machine element life time and …” „… berücksichtigt werden. In der Literatur sind nur wenige Methoden zur Umrechnung zu finden, die alle Aspekte …” „… Ermüdungsversuchen, erforderlich, die Versuchsergebnisse auszuwerten. Hierzu existieren verschiedene Methoden und …”

J. Zhang, B. Shaw, A. Hammer, I. Sewell Effects of Surface Engineering on the Efficiency of Involute Helical Gears – An Experimental Investigation S. 995-1016

„… stress analysis A 3D finite element (FEA) method was used to determine contact stress numbers of test …” „… ] developed a test method to evaluate the efficiency of spur gears under high-speed and variable torque …” „… studied when gears used were surface finished by different methods such as grinding, ISF (isotropic …”

S. Landler, M. Trübswetter, M. Otto, K. Stahl Parameter Based Definition of Eccentric Cycloid Gearings S. 1207-1228

„… action. They also present results of a loaded tooth contact analysis performed with the finite element …” „… gears, such as a low minimum number of teeth and high contact pressure near the base circle. Special …” „… number of teeth of the cycloid gear is usually selected with a higher number of teeth of the arc gear. In …”

doi.org/10.51202/9783181024225

VDI Wissensforum GmbH - International Conference on Gears 2019

Partial access

Select

VDI Wissensforum GmbH (ed.)

International Conference on Gears 2019

Series: VDI-Berichte

Volume 2355 2019

Results in this title

P. Scholzen, C. Lopenhaus, C. Brecher, D. Billenstein, F. Rieg, G. Hammerl Investigation of the influence of elastic gear body structures on the operational behavior of gears S. 785-796

„… circumradius ratio or the inradius to circumradius ratio [11]. 4. Method for Quantifying the Finite Element …” „… the design process or in the simulation. 2. Finite Element Contact Algorithm Due to the …” „… requires a finite element analysis with contact constraints that transfer the forces and displacements …”

H. Xu, D. Qin, C. Liu, Y. Yi, H. Jia Investigation of dynamic modeling and vibration transmission characteristics of helicopter main gearbox S. 449-460

„… / finite element hybrid modeling method. In the model, the structural flexibility of the shaft and housing …” „… the system. Comparing with the lumped parameter model, the finite element model (FEM) has high …” „… and housing is established based on the lumped parameter/finite element hybrid modeling method. On …”

B. Guilbert, P. Velex, P. Cutuli Hybrid models for the study of gear body dynamic deflections – Gear body modes S. 823-834

„… , which combines lumped parameter elements, finite elements and condensed sub-structures along with a …” „… mortar-based mesh interface. Gear bodies are simulated by 20-node 3D brick finite elements, making it possible …” „… Figure 1 comprises lumped parameters and finite elements [3]. All the contacts between the teeth are …”

F. Andary, G. Jacobs, J. Berroth Application of pre-calculated gear mesh stiffness on elastic gear bodies in multi-body simulation S. 1087-1098

„… elastic bodies using the finite elements method (FEM). However, calculating elastic tooth contact is …” „… and efficient simulations of mechanical systems in high speed applications. The method presented in …” „… geometry is first modeled in a finite element environment. Subsequently, two kinds of models are created …”

M. Schrank, C. Kiesewetter-Marko, C. Lopenhaus, A. Epple, T. Bergs, C. Brecher Approach for modeling elasticity in the gear honing process S. 1697-1706

„… and workpiece in the gear honing process using the finite element method, Fig. 2. The objective of …” „… honing process using the finite element method. The complexity of the gear honing process was reduced by …” „… , YAKARIA developed an FE (Finite Element) VDI-Berichte Nr. 2355, 20191698 simulation approach to map the …”

C. Chevrel-Fraux, R. Fargere, J. Bruyere, P. Velex Modelling of high power geared transmissions, introduction of a filling material S. 903-914

„… substructures, lumped parameters and beam finite elements is developed. First, the gear bodies are generated …” „… using a hybrid shell/volumetric 3D finite elements model. After using a static and dynamic condensation …” „… , optimisation method in order to find to the best geometry of cavities and the more interesting material …”

E. Maier, T. Lohner, K. Stahl, P. Sperka, M. Hartl Detailed analyses of film thickness and friction in thermoplastic EHL contacts S. 1391-1400

„… conducted using a common fully coupled system finite element approach based on solution of Reynolds …” „… 30 s. In order to describe this change, a simulation of the experimental configuration using finite …” „… Abstract Machine elements made from thermoplastic polymers have shown economic and technical …”

A. Mihailidis, A. Psarros FEM analysis of the load distribution over the face width of helical gear pairs considering deviations, misalignments and deformations S. 193-202

„… and deformations are considered in an empirical way. Analysis using Finite Element Method seems to be …” „… . The process was iterative, and the results were compared with those obtained by finite element …” „… by ISO using finite elements. They considered the shaft diameter, misalignment and centre distance …”

G. Vasileiou, N. Rogkas, V. Spitas, P. Zalimidis Optimisation of spur gear tooth fillet for maximum bending strength using Bezier curves S. 149-160

„… tested using finite element analysis (FEA) while assuming that the loading occurs at their highest point …” „… ] respectively (in non-dimensional values). 4. Finite element analysis The effect of the Bezier-Bernstein …” „… via finite element analysis on the obtained tooth. The geometry of the model is presented in Fig. 4 …”

A. Miltenović, M. Banić, V. Miltenović Prediction of heat generation of crossed axis gearbox S. 583-594

„… analysis are used finite elements of higher order SOLID 226 for generating finite element mesh. All the …” „… application of finite element method, the thermal stability of gearbox was predicted, and this method is …” „… bevel or cylindrical gears. Their operation is followed by high power losses of the transmission and …”

Y. Cai, L. Yao, J. Ding, S. Ouyang, J. Zhang Analysis of dynamic transmission error for nutation drive with double circular arc gears under assembly errors and different loads S. 343-354

„… non-linear process, the finite element method can comprehensively consider the complex conditions of gear …” „… finite element method. Mechanism and Machine Theory, 2017, 109:1-13. [17] L. G. Yao, B. Gu, S. J …” „… finite element model is illustrated in Fig. 3. Considering the calculation accuracy and time, the meshes …”

A. L. Kapelevich, Y. V. Shekhtman Optimization of asymmetric tooth root generated with protuberance hob S. 403-414

„… Gear Design [1] method optimizes various parameters and elements of gear tooth geometry to achieve the …” „… protuberance hob have circular arc initial root fillets (item 5 in the Fig. 2). Finite element nodes are …” „… fillet is connected to these finite element nodes. The first and last finite element nodes of the …”

T. Pinel, J. Bruyere, P.Velex, L. Billet Parametric Study of a 3D trochoidal reducer model with involute profile S. 437-448

„… reducer [1]. These reducer use speficic gear architectures in order to reach a high output torque. The …” „… arc profile), is divided into a finite number of discrete elements (index j) [13]. A stiffness …” „… quasi-static model The use of a finite element software (Abaqus) has given clues to validate the contact …”

S. J. Ma, G. Y. Wu, G. Liu Study on the contact characteristics of threaded surfaces in a planetary roller screw mechanism S. 1155-1164

„… through 3D finite element method and experiment. The model described the static behavior under a heavy …” „… SolidWorks 2016, and the 3D finite element model is developed using the commercial finite element package …” „… couplingbased finite element analysis of the load distribution of planetary roller screw mechanism. Advances in …”

F. Concli, C. Gorla Dynamic models for planetary gearboxes SHM S. 471-480

„… Analysis of a Wind Turbine Gearbox using A High Fidelity Finite Element Model,” 2013. [3] C. H. Y. Guo …” „… (FZG) test rig. The numerical FEA (Finite Element Analysis) of an entire test rig already represents a …” „… widely used in several applications. Generally, due to their small size and to the high reduction ratios …”

K. Humm, M.-S. Wirth, A. Linnemann, T. Schalk Determination of fatigue strength of plastic gears under consideration of environmental influences S. 1291-1298

„… (RIKOR, LVR) 3. Finite element analysis with linear elastic material model 4. Finite element analysis …” „… strength values can be obtained cost-effectively with the method of statistical test planning. The use of …” „… various calculation methods is discussed. 1. Introduction Compared to the development of steel gears …”

H. Wang, X. Wen, C. Zhou, Z. Liu Wear prediction for double helical gears grinded by forming method S. 315-330

„… coupling model of grinding tooth. Then, the residual stress is coupled to three-dimensional finite element …” „… generalized sliding distance model. By applying an accurate finite element contact model, Bajpai et al. [21 …” „… three-dimensional finite element contact model to calculate the contact pressure. A new coordinate system, in which …”

Z. H. Wu, Y. Q. Xu, K. A. Liu The Analysis on Grease Lubrication at Two Tapered Bodies Contact Considering Surface Roughness S. 1223-1236

„… with the finite difference method, first or second order partial derivative of grease film pressure …” „… classic finite line contact and can be equivalent to a typical contact of two tapered bodies. Grease is …” „… , the roughness Ra of the roughened surface is at or above an order of magnitude compared to the …”

P. L. Yin, J. H. Wang, C. X. Lu Digital twin of gear measuring center (dtgmc) S. 1521-1532

„… research of measurement software mainly focuses on the fitting method of general geometric elements in …” „… of which, the deformation error is converted into geometric error through finite element modeling …” „… the main instrument for measuring gear with the characteristics of rich measuring function, high …”

F. Concli, L. Maccioni, C. Gorla Power loss analysis of different high-power density gearbox typologies: CFD analysis and experimental measurements on a cycloidal gear set S. 101-114

„… tolerances required that result of an order of magnitude higher than those needed in cycloidal and planetary …” „… Power loss analysis of different high-power density gearbox typologies: CFD analysis and …” „… problems ensuring proper lubrication and increasing the reliability of the systems. High power density …”

M. Uhlig, C. Pastor Simulation tool-chain for plastic gear design S. 1453-1460

„… methods are employed. Finite Element Method (FEM) allows calculation of actual stresses, strains and …” „… concept determines durability of plastic gears. This method is also valid for uncommon designs. Tribology …” „… system and high dynamic pressure build-up. Bosch developed the electromechanical brake booster iBooster2 …”

E. V. Kozharinov, J. M. Temis Dynamic model of bevel gearing with friction damper S. 635-644

„… motion (5) are solved by the fourth-order Runge – Kutta method with a time step 2 ∙ 10 s. The frequency …” „… quasistatic finite element model was used (Fig. 6). TE of bevel gears determined by the following …” „… ; – pinion number of teeth; – gear number of teeth. : Finite element of bevel gearing TE calculation …”

M. Raabe Consideration of elastic deformations of gear bodies using a reduction on a fourier series S. 797-808

„… higher order finite element schemes for the simulation of Lamb waves. Comput. Methods Appl. Mech. Engrg …” „… Antriebstechnik Heft 11, Friedr. Vieweg & Sohn, Braunschweig, 1953 [7] CM2 FEM – Finite Elements Technical …” „… circle. The reduction of the FEA-mesh is then done using the least squares method …”

J. Neufond, E. Rigaud, J. Perret-Liaudet, A. Carbonelli Influence of tooth profile modifications on the dynamic behavior of a planetary gear set – Experimental investigation and numerical validation for different amplitudes of tooth profile modifications S. 765-776

„… modified/counterclockwise. Higher order harmonics remain difficult to measure and to predict. Fig. 3: Spectral contents …” „… considered in order to study the influence of tooth profile modifications on the static transmission error …” „… satisfying results. Introduction Planetary gear sets provide high gear ratio in a compact package. They …”

B. van Wissen, M. Kanters, F. Mitsuzuka, K. Iwanaga, Ir. A. Hasanovic Predicting wear for high performance plastic gears S. 1323-1334

„… computed using a Finite Element Method (FEM), by tracking the local pressure and sliding distance versus a …” „… combines results from a tribological setup, a gear tester, and finite element simulations. It is shown …” „… method for high performance plastic gears. Conference Proceedings “The International VDI Conference on …”

Z. Zhan, H. Liu, C. Xiang, Q. Yan, H. Li, W. Wei, L. Xu Study of lateral and torsional vibration distribution of two-stage planetary gears based on vibration energy theory S. 1245-1252

„… each significant frequency. Lee et al. [3] established a finite element model of a gear pair and …” „… two-stage planetary gears system. VDI-Berichte Nr. 2355, 20191246 3. Vibration Energy Method In order to …” „… connecting shafts. Engine excitation is simplified and ignored the high order components. The engine speed …”

W. Wagner, S. Schumann, B. Schlecht Co-simulation of the tooth contact of bevel gears within a multibody simulation S. 217-228

„… elastic static computation is performed for several load cases with the boundary element method (BEM). The …” „… points in contact, dependent on the convergence of the bodies. With the method of pressure elements, it …” „… static contact enabled finite element analysis. The spatial FE model has a flank discretisation of 120x …”

X. Du, B. Chen, X. Shan Robust force control of series elastic actuator using disturbance observer S. 1111-1122

„… . To realize high fidelity force control, a high-gain control method makes system unstable. In this …” „… zero-backlash and small size, they suffer from high cost, low efficiency and poor backdrivability. In order to …” „… disturbances and suppress noise at high frequencies as Qv are increased. On the contrary, if the λv is finite …”

K. Landet, J. Perret-Liaudet, E. Rigaud, J. Y. Guerder, M. Fraces Experimental study of railway gearbox whining noise S. 79-90

„… computation needs tooth compliances which are deduced from a 3D finite element modelling. The nonlinear …” „… fitted with two identical single-stage helical gearboxes. Gear microgeometry has been optimized in order …” „… . Secondly, dynamic responses under stationary operating conditions are analysed in order to VDI-Berichte Nr …”

F. Lubos, Z. Roth Bionic tooth root: fatigue testing and potential on gear units S. 47-56

„… upon the Finite Element Method. The optimization of the parameters can be achieved with a heuristic …” „… , including the remaining protuberance, make it possible to reach approximately 10-15% higher root fillet …” „… many times higher than the nominal stress. In this context the stress distribution is not so much …”

J. Zhang, J. Wang Dynamic modeling and analysis of a star-wheel reducer S. 741-752

„… the finite element method. Li et al. [9] established a nonlinear dynamic model and investigated the …” „… transmission ratio and high power density are required. As one of the most overwhelming concerns in the early …” „… characteristics of the star-wheel reducer. The results showed that the first 6 orders modal frequencies are in …”

C. Liu, W. Shi, F. Maria Cura, A. Mura Prediction of transmission accuracy lifetime of RV gearbox S. 425-436

„… .: Research on the Dynamic Transmission Error of a Spur Gear Pair with Eccentricities by Finite Element …” „… has the advantage of high transmission accuracy, which has been widely used in factory robots …” „… cycloid gears, most of the literature focus on the generating methods of tooth profile [5-6]. Besides, Li …”

doi.org/10.51202/9783181023556

1

2 3 ... 46