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VDI Wissensforum GmbH - International Conference on Gears 2022

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VDI Wissensforum GmbH (ed.)

International Conference on Gears 2022

Series: VDI-Berichte

Volume 2389 2022

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

„… discrete addition of the forces along the cutting edge over all individual cross-section elements. For the …” „… fixed mesh, this method is insensitive to large deformations and no distortion of the elements occur [19 …” „… macro level was performed according to the established method of discrete addition of the forces along …”

M. Furst, J. Gotz, M. Otto, K. Stahl Automation of gearbox design S. 787-802

„… and to define position of gear elements moving relative to each other. Standardized methods can be …” „… . Computer-aided tools are widely used for analyzing given design configurations because standardized methods are …” „… systematic method for the design of weight optimized helical gearboxes is proposed. The underlying method has …”

F. Muller, S. Schumann, B. Schlecht Innovative tooth contact analysis with non-uniform rational b-spline surfaces S. 171-184

„… method [3]), it is necessary to identify arbitrary points in the tooth root. To do this, the discrete …” „… Müller, Dr.-Ing. Stefan Schumann, Prof. Dr.-Ing. Berthold Schlecht, Institute of Machine Elements and …” „… the TCA, the discrete flank points are converted into a continuous and differentiable surface …”

J. Vorgerd, P. Tenberge, M. Joop Scuffing of cylindrical gears with pitch line velocities up to 100 m/s S. 903-914

„… . The method by Joop will be discussed in this paper. VDI-Berichte Nr. 2389, 20229043. Experimental …” „… investigations 3.1 Test rig and test method The experiments in this paper were performed on a highspeed …” „… approach by evaluating the temperature increase of the circulating lubricant. The method used is described …”

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

„… elements with a holistic approach. The analytical calculation methods based on physics enable an effective …” „… methods are compared with finite element results for corrected (figure 2) and not corrected teeth (figure …” „… transmission system development. Key element of this endeavors always is to reduce energy losses and increase …”

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 …” „… of gearing or via special analytical methods for face gears. Usually, the resulting surface is not …” „… limited to the boundaries of the active flank (i.e. fillet, tip and inner/outer radius). For these methods …”

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

„… spline connections are modeled using discrete 6x6 spring elements, as shown in Fig. 2. The element …” „… 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 …”

W. Wagner, S. Schumann, B. Schlecht Enhanced loaded tooth contact analysis of hypoid gears within a multi-body-system simulation S. 357-370

„… smallchange in forces old methodVDI-Berichte Nr. 2389, 2022360Shortcomings of the currently used method The …” „… stage, methods like the modal reduction of FEM-models [1] were already introduced. However, the …” „… specifically. The article describes a method to reduce fluctuations of computed reaction forces and moments …”

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 …” „… Elements, Gears & Transmissions, Technische Universität Kaiserslautern; S. Schmidt, M.Eng., Prof. Dr.-Ing …” „… developed computational tool provides full coupling between finite element analysis (FEA) and local …”

K. Daubach, M. Oehler, B. Sauer Wear simulation of worm gears based on an energetic approach S. 329-342

„… using this wear map. The wear map represents a central element of the practical calculation method for …” „… . Dr.-Ing. M. Oehler, Prof. Dr.-Ing. B. Sauer, Institute of Machine Elements, Gears & Transmissions …” „… . Introduction Worm gears are used as transmission elements, where a high transmission ratio, a smooth operation …”

M. Steinbacher, T. Boyraz, R. Fechte-Heinen, G. Hellenbrand Heat treatment development for the new steel grade X20NiCrAlMoV6-5-2-1 for high performance gear wheel application S. 891-902

„… case hardening and plasma nitriding as well as a combination of both.MethodsHeat TreatmentCarburization …” „… each element analysed at least two calibrating standards were used to evaluate the correct numbers. For …” „… least three calibration samples for determination of the carbon content. Finally a discrete supporting …”

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

„… particle hydrodynamic methodDipl.-Ing. B. Legrady, M. Sc. Markus Taesch,Dipl.-Ing. G. Tschirschnitz, Dive …” „… with the SPH method.Utilizing the advantage of fast pre-processing and easy setup with accurate results …” „… solutions GmbH, Berlin;Dipl.-Ing. C. F. Mieth, Institute of Machine Elements and Machine Design (IMM …”

A. Wedmann, M. Stein, K. Kniel Gear calibration in tactile scanning mode on CMMs S. 1539-1552

„… [1]. Although only discrete points or lines can be measured with this technology, it is still capable …” „… and scanning. The latter method offers a significant time savings along with higher point densities …” „… greater proximity to the measurement method actually used by industry. But the demand for the smallest …”

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 …”

doi.org/10.51202/9783181023891

Michael Aeberhard - Object-Level Fusion for Surround Environment Perception in Automated Driving Applications

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Michael Aeberhard

Object-Level Fusion for Surround Environment Perception in Automated Driving Applications

Series: Verkehrstechnik/Fahrzeugtechnik

Volume 804 2017

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Titelei/Inhaltsverzeichnis

„… driving, new methods are required for processing the data in an efficient and economical manner from the …” „… dynamic objects is presented in order to realize an effective method for sensor data fusion. A scalable …” „… .) and the true value (.) (̄.) Complement of (.) (.)(k) Value of (.) at the discrete time step k (.)k …”

State and Covariance S. 64-92

„… [79, 94, 133, 159, 169, 196, 203]. Similar clustering methods are also used with radar [79, 157] and …” „… are large compared to the range of an object from a sensor. More recently, occupancy grid methods have …” „… Chapter 3. The most basic method of data association attempts to find the best 1-to-1 assignment between …”

Fusion Strategy and Object Association S. 46-63

„… measurement of an object and updated its state at discrete time k− 1 and needs to be temporally aligned to …” „… the fusion-level in order to create global objects. The method of processing object data for fusion …” „… method of processing sensor-level object data at the fusion-level is to use a sensorto-global fusion …”

doi.org/10.51202/9783186804129

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wt Werkstattstechnik online

Browse Volumes: wt Werkstattstechnik online

wt Volume 109 (2019) Issue 06 ISSN Online: 1436-4980

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B. Denkena, T. Grove, Y. Liu Computerunterstützte Schleifwerkzeugherstellung*/Computer-assisted grinding wheel manufacture – Simulation of the process chain for the production of metal-bonded grinding tools S. 464-467

„… of the fifth International Conference on Discrete Element Methods, London, 2010, pp. 25–26 [5 …” „… der Herstellung. Im Rahmen der Simulation der Prozesskette wird die Diskrete-Elemente-Methode (DEM …” „… ) für Misch- und Einformprozesse und die Finite- Elemente-Methode (FEM) für das Vorverdichten und das …”

doi.org/10.37544/1436-4980-2019-06

Christian Woitzik - Experimental testing and numerical simulation of granules as crash absorber for double hull structures

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Christian Woitzik

Experimental testing and numerical simulation of granules as crash absorber for double hull structures

Series: Mechanik/Bruchmechanik

Volume 356 2021

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Bibliography S. 119-136

„… granular material modeled by a three-dimensional discrete element method, Computers and Geotechnics 35 (3 …” „… , P. Wriggers, On the computational aspects of comminution in discrete element method, Computational …” „… 10035-017-0735-4. [122] P. Wriggers, B. Avci, Discrete element methods: Basics and applications in engineering, in …”

Titelei/Inhaltsverzeichnis

„… . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2.2.1 Finite element method . . . . . . . . . . . . . . . . . . . . . . . . . 17 2.2.2 Discrete …” „… Glass-Granulat – Experimentelle Untersuchung – Finite-Elemente-Methode Keywords: Collision safety – Double hull …” „… – Experimental testing – Finite element method In the maritime sector, the collision safety is an essential …”

Introduction S. 1-5

„… finite element method (FEM), and its advances in solving non-linear problems and including contact …” „… level is carried out by a project partner at Leibniz University Hannover, using the discrete element …” „… commercial FEM tools that are used as standard tools in industry. The numerical methods and material models …”

Constitutive equations and numerical implementation S. 6-23

„… already been introduced in Section 2.1. 22 2.2 Numerical implementation 2.2.2 Discrete element method In …” „… concept of the discrete element method will be given. The interested reader is referred to [113, 114, 50 …” „… element method. The governing equations and the numerical implementation are shown in the next section …”

doi.org/10.51202/9783186356185

Jeanette Hamiga - Increasing Output in Transfer Lines through Adaptive Buffer Operation

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Jeanette Hamiga

Increasing Output in Transfer Lines through Adaptive Buffer Operation

Series: Fördertechnik/Logistik

Volume 58 2016

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Introduction S. 1-6

„… and generative solution methodologies are explained. The requirements to a method to increase output …” „… operating points for buffers is introduced. This method is split into the evaluative methodology, here …” „… 1 1 Introduction Subject of this dissertation is a method to increase output in serial transfer …”

References S. 118-132

„… . Berlin: Springer. Biela, Christoph. 2015. Concept development for steering of decoupling elements in …” „… ,… Methods and Case Studies. Berlin: Springer. Eckart Zitzler. 2012. Evolutionary Multiobjective …” „… Efficient Decomposition Method for the Approximate Evaluation of Tandem Queues with Finite Storage Space …”

Method design for increased output in assembly S. 39-63

„… blocking and starving in section 2.1, are referred to as system-induced downtimes. Method-oriented …” „… 39 3 Method design for increased output in assembly The method of increasing output in transfer …” „… principles and work of the developed method is given. Succeeding in section 3.2 the assumptions concerning …”

doi.org/10.51202/9783186058133

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