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Bauingenieur

Alle Ausgaben: Bauingenieur

Bauingenieur Jahrgang 98 (2023) Heft 07-08 ISSN Online: 0005-6650

Treffer in den folgenden Teilen:

Georgia Kikis, Leonie Mester, Homam Spartali, Rostislav Chudoba, Sven Klinkel Analyse des Trag- und Bruchverhaltens von Carbonbetonstrukturen im Rahmen des SFB/TRR 280/Analysis of the load-bearing and fracture behavior of carbon concrete structures as part of the SFB/TRR 280 S. 218-226

„… .; Wolf, J. P.: The scaled boundary finite-element method-alias consistent infinitesimal finite-element …” „… benötigt. Daher wird die Methode mit dem Konzept der scaled boundary finite element method (SBFEM …” „… analysis: CAD, finite elements, NURBS, exact geometry and mesh refinement. In: Computer Methods in Applied …”

Domen Macek, Annabell Rjosk, Stephan Ritzert, Thea Lautenschläger, Christoph Neinhuis, Stefanie Reese Pflanzengewebe als Inspiration für Carbonbeton-Strukturen: Morphologie und mechanisches Verhalten/Plant tissues as an inspiration for carbon reinforced concrete structures: morphology and mechanical behavior S. 227-233

„… die Finite-Elemente-Simulationen wird ein kontinuumsmechanisches Materialmodell verwendet. Zunächst …” „… simulation. For the finite element simulations a con-tinuum mechanical material model is used. First, the …” „… Veranschaulichung der Möglichkeiten des Materialmo-dells zeigen wir hier 3D-Finite-Elemente-Simulationen eines …”

doi.org/10.37544/0005-6650-2023-07-08

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wt Werkstattstechnik online

Alle Ausgaben: wt Werkstattstechnik online

wt Jahrgang 92 (2002) Heft 6 ISSN Online: 1436-4980

Treffer in den folgenden Teilen:

F. Klocke, H.-W. Raedt Innovationen in der Feinschneidtechnik S. 268-272

„… Methoden in den 70er Jahren wieder aufgegriffen. Vor allem die Finite-Elemente-Methode (FEM) ist hier zu …” „… plastische Werkstück-Schneiden, Simulation, Finite Elemente Methode Innovationen in der Feinschneidtechnik F …” „… Einsatz der numerischen Simulation – vor allem der FEM (Finite Elemente Methode) – enorm voran getrieben …”

E. Doege, M. Alasti, R. Schmidt-Jürgensen Innovatives Verfahren zur Charakterisierung von Reibung und Wärmeübergang beim Präzisionsschmieden S. 307-311

„… Präzisionsschmiedeverfah-ren bietet dabei der Einsatz der Prozesssimulation auf Basis der Finite-Element-Methode (FEM). Für die …” „… Komplexität der auftre-Schmieden, Finite-Element-Methode, Simulation Innovatives Verfahren zur …” „… .: Numerische Simulationen von Präzisionsschmiedepro-zessen mit der Finite-Elemente-Methode. Fortschrittberichte …”

doi.org/10.37544/1436-4980-2002-6

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Bauingenieur

Alle Ausgaben: Bauingenieur

Bauingenieur Jahrgang 91 (2016) Heft 12 ISSN Online: 0005-6650

Treffer in den folgenden Teilen:

Michael Kaliske, Felix Hartung, Ines Wollny Finite-Elemente-Simulation der Reifen-Fahrbahn-Interaktion/Finite element simulation of the tire-pavement-interaction S. 506-517

„… Finite-Elemente-Methode (FEM) (siehe z. B. [1], [2]) zur theoretisch-numerischen Abbildung der realen Struktu- Dipl.-Ing …” „… . Prentice Hall, London, 1996. [2] Wriggers, P.: Nichtlineare Finite-Element-Methoden. Springer-Verlag …” „… Contact – Theoretical Foundations and Finite Element Approach. In: Computer Methods in Applied Mechanics …”

H. Ercan Tasan Zum Tragverhalten von Suction-Buckets unter zyklisch lateralen Einwirkungen/On the Behaviour of Suction Buckets under Cyclic Lateral Loads S. 496-505

„… , B.A.: The finite element method in the static and dynamic deformation and consolidation of porous …” „… ] Babuška, I.: The finite element method with lagrangian multipliers. In: Numerische Mathematik, 20 (1973 …” „… . Finite-Elemente-Methode Berechnung Geotechnik Wasserbau …”

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„… Einwirkungen 506 I. Wollny, F. Hartung, M. Kaliske Finite-Elemente-Simulation der Reifen-Fahrbahn-Interaktion …” „… Formfindung M as si vb au 3D-Stabwerke St ab ili tä t u n d D yn am ik 3D-Finite Elemente © www.mgm-ki.pl …” „… einzelnen Elemente der Lärmschutzwand kommen bereits vorgefertigt an der Baustelle an und werden …”

Julia Rosin, Christoph Butenweg, Sven Klinkel Stabilitätsnachweis für seismisch beanspruchte Tankbauwerke nach dem LBA/MNA-Konzept/Stability proof of seismically loaded tank structures according to the LBA/MNA-approach S. 518-526

„… Methode dar, die Möglichkeiten Finiter-Element-Programme für den Nachweis zu nutzen. Doch trotz seiner …” „… the often very thin-walled structures. For the proof of stability various methods are available …” „… . Usually stressed-based methods are used for simplicity. As these methods base on experimental background …”

doi.org/10.37544/0005-6650-2016-12

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Bauingenieur

Alle Ausgaben: Bauingenieur

Bauingenieur Jahrgang 94 (2019) Heft 09 ISSN Online: 0005-6650

Treffer in den folgenden Teilen:

Boglárka Bokor, Thilo Pregartner, Akanshu Sharma, Jan Hofmann Bemessung von zugbeanspruchten Befestigungen in Beton mit einem nicht-linearen Federmodell- Hintergrund und Softwarelösung für die Versagensart Betonausbruch/A non-linear spring model for design of tension loaded anchorages in concrete- Background and software solution for concrete cone failure S. 326-335

„… Bemessungskonzept vor, das einen federmodellbasierten Ansatz mit einem 3D-Finite-Elemente-Solver kombiniert …” „… Untersuchungen der Autoren entwickelt wurde, Bokor et al. [25]. Die Ankerplatte wird mit finiten Solid-Elementen …” „… uniaxial tension-only springs, realistic base plate deformations through finite elements and contact …”

Thomas Höbbel, Christoph Piotti, Peter Andrich Menscheninduzierte Schwingungen bei einer doppelstöckigen Sporthalle in Berlin-Neukölln/Human induced vibrations in a two-storey sports hall located in Berlin-Neukölln S. 305-314

„… . Bei komplexen Systemen erfordert es lediglich ein Finite-Elemente-Programm zur Ermittlung der …” „… ausreichender Genauigkeit eine rechenzeitintensive Finite-Elemente-Berechnung des gesamten Systems im …” „… – Untersuchungsmethoden und Beurteilungsverfahren der Baudynamik – Grundlagen – Methoden, Vorgehensweisen und …”

Dirk Proske Der 30-Jahre-Zyklus der Brückeneinstürze und der technologische und demographische Wandel im Bauingenieurwesen/The 30-year cycle of bridge collapses and the technological and demographic change in civil engineering S. 343-352

„… daraus neu ergebenden Risiken ist die fehlerhafte Anwendung der Finiten-Elemente-Methode beim Untergang …”

doi.org/10.37544/0005-6650-2019-09

VDI Wissensforum GmbH - International Conference on Gears 2022

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VDI Wissensforum GmbH (Hrsg.)

International Conference on Gears 2022

Reihe: VDI-Berichte

Band 2389 2022

Treffer in den folgenden Teilen:

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 …”

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 …” „… matrix is determined based on regular shafting. Furthermore, the applicability of beam element method and …” „… has not been unified. In addition, the modeling accuracy of the beam element method is rarely …”

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 …”

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 …”

P. Rodel, R. Spieler, M. Indenbirken, T. Nuisl Holistic friction optimization of transmissions – a significant contribution for sustainability S. 731-744

„… methods are compared with finite element results for corrected (figure 2) and not corrected teeth (figure …” „… elements with a holistic approach. The analytical calculation methods based on physics enable an effective …” „… housings is realized by reduced finite element models. Thus, the housing deformation induced by each single …”

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 …”

C. Li, B. Peng, Y. Luo Research on indexing error of gear with few teeth in rolling process S. 445-456

„… finite element simulation and experimental study for the initial rolling indexing are carried out with …” „… Z1=33 d1=11.5 mm Finite Element Geometry Model The geometric model of cold roll-forming of gear …” „… 0.01 mm/s. The rotation speed of rolling tools is 0.5236 rad/s. Fig 7. Finite element model (a …”

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-based …” „… 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 …”

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 …”

L. Hildebrand, F. Dangl, M. Sedlmair, T. Lohner, K. Stahl CFD analysis on the oil flow of a gear stage with guide plate S. 677-694

„… finite volume based CFD method. The appropriate selection of an acceleration ramp in the simulation setup …” „… .: Detailed Investigations on the Oil Flow in Dip-Lubricated Gearboxes by the Finite Volume CFD Method …” „… distribution and churning power loss of gearboxes by finite volume CFD method. Tribology International (2017 …”

S. Matkovič, M. Kalin Effect of tribological properties on tooth root fatigue failure of polymer gears S. 1257-1268

„… ] V. Roda-casanova, F. Sanchez-marin, A 2D finite element based approach to predict the temperature …” „… . Fernandes, D.M.P. Rocha, R.C. Martins, L. Magalh, J.H.O. Seabra, Tribology International Finite element …” „… : A comparison of ISO 6336:2006, AGMA 2101-D04, ANSYS finite element analysis and strain gauge …”

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 …” „… finite element simulations. However, not in all cases one has the opportunity to take fiber orientation …” „… . 2389, 2022 1091 The graph in Figure 8 shows the results of an anisotropic mechanical finite element …”

D. Zorko, Z. Bergant, B. Černe Potential of woven carbon fiber reinforced polymer composite gears S. 1071-1082

„… transient mechanical finite element meshing analysis, the frictional heat flux could be calculated as a …” „… ) Fig. 8: a) Finite element system used for gear running thermal analysis and b) obtained numerical …” „… possibility of gear systems without lubrication. 2. Materials and methods 2.1. Composite material preparation …”

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 …”

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 …” „… of gearing or via special analytical methods for face gears. Usually, the resulting surface is not …”

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

„… 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 …” „… calculation method is necessary. In this paper, such a method is demonstrated by the example of a high ratio …”

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 …” „… ., Kiel; K. Daubach, W. Kassem, M. Oehler, O. Koch, Chair of Machine Elements, Gears and Tribology …” „… issues are various deformations of machine elements, mutual stiffening of mating components and proper …”

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

„… Non-Linear Mechanics, 2017, 97(dec.):30-40. [17] Tangpong, X.W.; Wickert, J.A.; Akay, A. Finite element …” „… demonstrate that peak stress and stress fluctuations can be greatly reduced with this method. Introduction …” „… demonstrate that peak stress and stress fluctuations can be greatly reduced with this method. 1. Modelling …”

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 …” „… to tooth-bending stress were observed to examine the 60°-tangent method for determining the …” „… more suitable for the determination. 1. Introduction An internal gear is one of the key elements for …”

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

„… Programmdokumentation „Mechanical APDL 19.0 Theorie Reference“ [6] Rieg, F.; Hackenschmidt, R.: Finite Elemente Analyse …” „… considered for calculating the local root stress. This method simplifies the coupling stiffness in tooth …” „… . In this publication, this simplification shall be questioned and evaluated. Therefore, a new method …”

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 …”

A. Miltenovic, M. Banic Investigation of the meshing friction heat generation of worm gears and influence of the contact shape S. 803-810

„… behavior of contact teeth, a coupled thermo-elastic 3D finite element model has been applied. The heat flux …” „… the load capacity of worm gear pair. Paschold [1] developed method to determine the efficiency and …” „… coupled transient thermal structural analysis. The rate of frictional dissipation in contact elements is …”

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 …” „… can be accepted [8 – 12]. Concerning this, the full capacity of AM can be exploited by applying finite …”

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 …” „… roller element bearings on the planet pins. To avoid undesired influences due to mass unbalances the …”

A. Beinstingel, M. Heider, B. Pinnekamp, S. Marburg Gear mesh excitation and non-uniform rational B-splines S. 91-102

„… curved geometries. Hence, the standard Finite Element Method (FEM) needs an adequately high mesh …” „… underlying geometry in a highly accurate manner. The basic concept of the proposed method is explained …” „… (~elements), as their underlying shape functions are Non-Uniform Rational B-Splines (NURBS). This main …”

J.-A. Meis, M. Walkowiak Influence of case hardness depth on tooth interior fatigue fracture S. 863-874

„… can be gained using finite element simulation, boundary element method or even analytical methods …” „… the lack of methods to detect a flank fracture in early stages of the crack initiation and the …” „… hardness profile due to segregations. Fig. 1: Structure of assessment method [1] Figure 1 shows a …”

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 …” „… . Kassem, Manuel Oehler, MEGT – Institute of Machine Elements, Gears and Transmissons, Department of …” „… analytical method for calculating the contact lines from the equation of meshing. The model for simulating …”

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

„… Softwares Inc., Quebec, Canada; Frederik Mieth, Dipl.-Ing., Institute of Machine Elements and Machine …” „… driving wheels. These gears can be produced by several cutting methods, but forging is the preferred …” „… method for the high production volumes required in the automotive industry. In previous presentations [1 …”

P. Roth, M. Hein, K. Stahl Scuffing load capacity calculation of worm gears S. 811-824

„… calculation method to determine the scuffing load capacity. As such a method is currently not available, the …” „… , the objective of this paper is the development of a scuffing load capacity calculation method for worm …” „… gears. Two main requirements on the method are defined. First, the method needs to consider the specific …”

H.-J. Dennig, L. Zumofen, A. Kirchheim, S. Winterberg, D. Stierli Increasing the safety against scuffing of additive manufactured gear wheels by internal cooling channels S. 1345-1364

„… diameter of 2 mm centred in the tooth is chosen as the channel cross-section. A finite element method (FEM …” „… are a central element of many gear systems [3, 4]. Designs that allow smaller moments of inertia and …” „… gear elements are essential [8]. A suitable lubrication system, such as an oil bath or injection …”

P. Mahendra Rao, S. Foletti, L. Bonaiti, C. Gorla, S. Beretta, F. Concli Mode III threshold under rolling contact fatigue and development of a test gearbox for planet gears S. 499-510

„… above-mentioned loading conditions are applied to the planet gear under assessment in a Finite Element (FE …” „… element sizes that have been verified to give convergence for the analysis. A finer mesh has been used at …” „… Murakami’s [10] concept that defects can be treated as small cracks. The details of these methods, and the …”

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

„… gears are characterized by a thin but very hard compound layer of iron and alloy element nitrides …” „… bending strength and the flank load carrying capacity were investigated. 3. Methods and Materials This …” „… non-destructive measuring methods. This included, for example, a 2- and 3-dimensional surface measurement …”

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 …” „… sub-surface initiations being described as having longer fatigue lives for any given finite life producing …” „… relationship will be equivalent for different materials and material processing methods such as surface …”

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 …” „… presented method is built on Knowledge-Based Engineering (KBE) and aims to foster the continuously reuse of …” „… creation with description of goal, input, automation method and output. First, the automated parts task was …”

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 …” „… , are output in the post-process. With these methods, it is possible to directly optimize the tooth root …” „… this purpose, we have developed a particularly fast calculation method [10 ... 12]. Very fast tooth …”

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 …” „… is based on analytical methods, the calculation is very fast. This allows the engineer to evaluate …” „… rating of the drivetrain and housing, the evaluation in RecurDyn gives a complete result. Both methods …”

doi.org/10.51202/9783181023891

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