Suche einschränken

Ergebnisse (255)

Sortierung:

Alle Alles auswählen

Seite 6

VDI Wissensforum GmbH - International Conference on Gears 2019

Teilzugriff

Auswählen

VDI Wissensforum GmbH (Hrsg.)

International Conference on Gears 2019

Reihe: VDI-Berichte

Band 2355 2019

Treffer in den folgenden Teilen:

F. Muller, S. Schumann, B. Schlecht Determination of S-N curves for pitting based on local damage analysis S. 657-668

„… , Dr.-Ing. Stefan Schumann, Prof. Dr.-Ing. Berthold Schlecht, Institute of Machine Elements and Machine …” „… methods based on experimental tests have been established. Since pitting is a fatigue failure, S-N curves …” „… , which are costly and time-consuming. To solve this problem, this article introduces the method of local …”

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 …” „… standard MBS force element which implements the ISO 6336 method b for calculating the gear mesh stiffness …” „… Elements and Systems Engineering (MSE), RWTH Aachen University, Aachen Abstract Multi-body simulation …”

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

„… Nr. 2355, 2019 425 error. Lin et al. [8] proposed a discrete method for calculating the kinematic …” „… . Tooth profile model In this section, a discrete method for generating the real tooth profile of spur …” „… , a novel discrete tooth profile model is presented, which has the capacity to generate the real …”

D. Mevissen, C. Lopenhaus, T. Bergs Calculation of mixed friction conditions in large-scale rolling-sliding contacts for different surface structures S. 555-568

„… calculation method for mixed lubrication conditions. Besides a detailed verification of the calculation …” „… calculation method, the load dependency of the friction coefficient as well as the curvature of the STRIBECK …” „… calculation methods for solving the elastohydrodynamic lubrication equations (EHL) considering the roughness …”

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 …”

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 …” „… this far including the use of advanced materials [1], the introduction of different methods of gear …” „… use of productive generation methods (i.e. hobbing) for the production of the gears. The …”

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

„… Liu. A versatile method of discrete convolution and FFT (DC–FFT) for contact analyses. Wear …” „… more [8-12]. Bujurke et al. [8] employed the Jacobian Free Newton-GMRES method to simulate the steady …” „… ] and the Lundberg’s logarithmic (fully-crowned) crowning method [21] are adopted. Corresponding …”

L. Ryali, D. Talbot A gear load distribution model for planetary gear set with a flexible carrier S. 809-822

„… compliance of the planet carrier from three-dimensional finite element models, and planet pins which act as …” „… elements. This flexibility formulation is integrated with a multibody elastic contact model to numerically …” „… sets. There have been finite element (FE) based studies, but these are computationally very expensive …”

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

„… arc profile), is divided into a finite number of discrete elements (index j) [13]. A stiffness …” „… element, , is attributed to each cell of contact. Fig. 4: Elemental contact force At each potential …” „… quasi-static model The use of a finite element software (Abaqus) has given clues to validate the contact …”

C. Brecher, C. Lopenhaus, F. Goergen Transfer of the tooth flank stress into an analogy test concept to provoke the damage pattern tooth flank fracture (TFF) S. 25-36

„… analogy test. The aim of this work is a method for the optimization of the pulsator load sequences in …” „… built up. Simultaneously, a method is being developed which optimizes the pulsator loads at the primary …” „… investigation of TFF is presented [1]. Stresses in Tooth Flank Contact The loading of a discrete volume …”

I. Moriwaki, S. Doi, Asso. D. Iba, T. Yomenura, K. Haizumi Conjugate tooth profile of circular spline to involute flex gear in strain wave gearing S. 973-984

„… strain-wave gearing comprises three elements; i.e, a circular spline, a flex gear, and an elliptic cam. This …” „… had appeared in the literature. For examples, Koshi Kondo and Jun Takada proposed a method for …” „… with one unknown parameter, e. This cannot be solved analytically so that we solved it for discrete …”

K. Lubke Virtual gauge for splined shaft-hub joints – Quality inspection and assembly of involute splines in the context of Industry 4.0 S. 1497-1508

„… . However, for the measured part of the flank surfaces there exist the virtual gauge method for splined …” „… post-evaluated with the presented method. This paper will present the results for a set of external and internal …” „… virtual gauge method is computer-aided and proves this statement wrong. Based on the measured surfaces of …”

H. Blettery, D. Talbot, A. Kahraman, H. Xu A methodology for measurement of loaded transmission error of hypoid gear pair with misalignments S. 619-634

„… deformation of the machine elements under load. Finally, Yoon et al. [11] presented the results of a …” „… only the discrete values of 0.2, 0.1,0,0.1,0.2 degrees were achievable in the arrangement of …” „… . “Methods for Measuring Gear Transmission Error Under Load and at Operating Speeds”, SAE Technical Paper …”

M. Fromberger, S. Sendlbeck, M. Rothemund, J. Gotz, M. Otto, K. Stahl Comparing data sources for condition monitoring suitability S. 257-268

„… main element. A big part of this huge amount of gears consists of cylindrical gears with involute …” „… below those two meshing images shows the course of mesh stiffness and LTE, with the two shown discrete …” „… methodology based on a probabilistic approach to incorporate angular acceleration information into the maxima …”

doi.org/10.51202/9783181023556

Kein Zugriff

Auswählen

wt Werkstattstechnik online

Alle Ausgaben: wt Werkstattstechnik online

wt Jahrgang 111 (2021) Heft 05 ISSN Online: 1436-4980

Treffer in den folgenden Teilen:

Christian Brecher, Benedikt Biernat, Stephan Neus Lastverteilungen in Kugelgewindetrieben/Consideration of locally discrete loads in the service life calculation of ball screws S. 271-276

„… den Quotienten aus Belastung S T I C H W Ö R T E R Antriebstechnik, Finite-Elemente-Methode (FEM …” „… method to integrate discrete location load distributions into the service life calculation of ball screws …” „… is presented. Instandhaltung Antriebstechnik Finite-Elemente-Methode (FEM) …”

doi.org/10.37544/1436-4980-2021-05

VDI Wissensforum GmbH - International Conference on Gears 2017

Teilzugriff

Auswählen

VDI Wissensforum GmbH (Hrsg.)

International Conference on Gears 2017

Reihe: VDI-Berichte

Band 2294 2017

Treffer in den folgenden Teilen:

A. Miltenović, M. Banić, Ž. Mišković, R. Mitrović, V. Miltenović Prediction of heat generation in transmission bearings by application of FEM S. 1199-1208

„… five causes, which is considered to be dominant. By application of finite element method, the heat …” „… used in the final element SOLID 226, ANSYS [8] to generate a finite element mesh. The discrete model …” „… distribution of the transmission bearing. The method consists of two analyses by finite element method which …”

I. Atanasovska, H. Abderazek Comparative analysis of few new procedures for spur gears tooth profile optimization with different methods and aspects S. 1169-1176

„… nominal load effects on gear load capacity using the finite element method. Proceedings of the …” „… Different Methods and Aspects Assoc. Research Prof. Ivana Atanasovska, Mathematical Institute of the …” „… behavior of gear pairs. Thus, the developing of new optimization procedures and methods for selection of …”

A. Carbonelli, J.-Y. Guerder Computing and minimizing the whining noise – Application to a bogie gearbox S. 517-526

„… gearbox (whining noise). This work presents an efficient method to model the whining noise. The two main …” „… of the computational scheme This computational scheme requires a finite element model of the …” „… procedure [7 - 8]. The original spectral iterative method has been extended in order to take into account …”

C. Brecher, C. Löpenhaus, F. Goergen, D. Mevissen Crack propagation analysis of pitting damages of high-strength material systems in gear applications S. 281-292

„… principal normal/shear stresses during the rolling-motion. The discrete element considered is strained by …” „… noticed that the discrete element is strained by an alternating stress with a positive and a negative …” „… discrete element. Furthermore, in the depth range between 49 μm ≤ d ≤ 126 μm, the principal shear stress …”

P. Norgauer, W. Sigmund, D. Kadach, K. Stahl Comprehensive simulation methods for crossed helical gear sets with the main focus on the calculation of contact patterns S. 353-362

„… Comprehensive simulation methods for crossed helical gear sets with the main focus on the …” „… to check the gear stage for possible transmission errors. Furthermore, a method for calculating the …” „… the presented calculation methods, contact patterns in without load and under load can be calculated …”

B. Guilbert, P. Cutuli, P. Velex Hybrid dynamic model of hollow thin-rimmed gears S. 623-634

„… , D.N., A general purpose, multi-stage component modal synthesis method, Finite elements in analysis …” „… combines lumped parameter elements and condensed finite element sub-structures along with a mortar-based …” „… bodies. Gear bodies are initially simulated by finite elements making it possible to account for …”

A. von Freyberg, A. Fischer Automatic geometry segmentation of involute flank regions S. 1015-1024

„… proven measuring methods as well as analysis software exist for determining geometric deviations and …” „… worm gears, chain wheels or special gears, and many proven measuring methods as well as analysis …” „… data prior to approximating the corresponding geometric elements to the individual regions. Two …”

B. Černe, D. Zorko, J. Duhovnik Semi-analytical method for the prediction of the flank temperatures of polymer gears during running S. 1611-1624

„… computation analysis, using the finite element method for a single meshing cycle, where the characteristic …” „… Semi-analytical method for the prediction of the flank temperatures of polymer gears during …” „… reliable method for the prediction of the flank temperature state of polymer gears after longer running …”

B. Schlecht, F. Müller, S. Schumann Simulation and measurement of tooth flank deviations on bevel gears caused by pitting and micro pitting S. 293-304

„… , Institute of Machine Elements and Machine Design (IMM), TU Dresden Abstract Fatigue failures on tooth …” „… are contrasted to determine the capabilities and limitations of the simulation method. 1 …” „… divided the gear lifetime into discrete time steps. For each time step, he determined the flank deviation …”

E. Böyükbaş, H. J. Stadtfeld Surface structure shift for ground bevel gears S. 1391-1402

„… positions to the next, the controller software tries to connect the discrete positions with a smoothing …” „… The development of a ground surface structure with characteristic elements of a honed or lapped …” „… MicroPulse method show lower amplitude peaks at the higher harmonics of the tooth mesh frequency (Figure 8 …”

doi.org/10.51202/9783181022948

VDI Wissensforum GmbH - Plastics in Automotive Engineering 2017

Teilzugriff

Auswählen

VDI Wissensforum GmbH (Hrsg.)

Plastics in Automotive Engineering 2017

Reihe: VDI-Berichte

Band 4348 2017

Treffer in den folgenden Teilen:

A. Liebsch, R. Kupfer, M. Gude, P. Müller, N. Andricevic Hollow profiles, organo-sheets and LFRT node structures: hybrid components made of fiber-reinforced plastics for automotive serial production S. 215-226

„… load profile along the evaluation path A-B. The discrete element method (DEM) [12] was selected for …” „… element method and of smoothed particle hydrodynamics it was possible to simulate the phenomena …” „… weight is offered by highly integrative construction methods with a combination of torsionally and …”

doi.org/10.51202/9783182443483

Kein Zugriff

Auswählen

VDI Wissensforum GmbH (Hrsg.)

Baudynamik 2022

Reihe: VDI-Berichte

Band 2379 2022

Treffer in den folgenden Teilen:

H. Lyu, A. S. Sattari, F. Wuttke, Z. H. Rizvi, H. D. B. Aji Nutzung von Wellenfeldern zur Identifikation geschädigter Strukturen S. 361-372

„… dynamische Anwen-dung weiterentwickelt [9]. Die DLEM ist ähnlich der Cohesive Discrete Element Method (CDEM …” „… fields. A coupled dynamic discrete lattice element model was developed to achieve the objective. The wave …” „… geschädigten Strukturen, die mikro-strukturell basierte Diskrete-Lattice-Element Methode (DLEM) für eine …”

A. Firus, R. Kemmler, G. Lombaert, J. Schneider, H. Berthold Ein Ansatz im Zeitbereich zur Rekonstruktion von bewegten dynamischen Fahrzeuglasten auf Eisenbahnbrücken S. 95-108

„… Praxistauglichkeit der entwi-ckelten Methode kann anhand realer Messdaten gezeigt werden, die im Rahmen einer …” „… Ergebnisse der Methode bestätigen, dass die dynamischen Lasten eines Eisenbahnfahrzeugs mit einer Vielzahl an …” „… Wesentlichen drei Methoden zur Lösung von MFI-Problemen verfolgt werden: deter-ministische Methoden [3, 6-8 …”

doi.org/10.51202/9783181023792

1 ...

6

7 8 ... 51