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VDI Wissensforum GmbH - Dritev – Drivetrain For Vehicles 2018

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VDI Wissensforum GmbH (ed.)

Dritev – Drivetrain For Vehicles 2018

Series: VDI-Berichte

Volume 2328 2018

Results in this title

R. Buchberger, O. Grieshofer, K. Puchner, R. Sereinig System optimization of electric drives in terms of lightweight design, acoustics and efficiency by means of modern transmission simulation methods

„… System optimization of electric drives in terms of lightweight design, acoustics and efficiency …” „… . The lightweight optimization will be considered at Magna Powertrain (MPT) by the usage of …” „… topology-optimization and fatigue software tools. Regarding acoustics an engineering process for prediction of air- and …”

M. Hofstetter, D. Lechleitner, M. Hirz, M. Gintzel, A. Schmidhofer Multi-objective gearbox design optimization for xEV-axle drives under consideration of package restrictions

„… Multi-Objective Gearbox Design Optimization for xEV-Axle Drives under Consideration of Package …” „… context, the present contribution introduces a gearbox design optimization process to support …” „… introduced differential evolution-based process delivers design parameters of shafts, gears, bearings and …”

D. Bauer, M. Alexander Loss-optimized design of a high performance electrical machine for electric and hybrid cars

„… optimization workflows. Based on this toolchain an optimization considering maximum efficiency and -optimized …” „… well as the presented optimization workflow, a machine design based on the customer’s requirements can …” „… cycle losses, value: 2 kWh/100 km Based on this scenario it can be shown that 600 € on battery cost can …”

K.-P. Fritsch Industry 4.0 in the automatic transmission production

„… included in the analysis. If possible, the optimizations are displayed in real time and are available …” „… Current status An analysis-tableau for the change impulses triggered by own I4.0 projects has already …” „… collaborative project These capabilities are linked via a service-based software interface. The versatility …”

M. Hein, T. Tobie, K. Stahl Holistic approach for fatigue life design of vehicle transmissions

„… evaluated carefully based on a statistical analysis identifying critical operating conditions for different …” „… testing for approval of the gearbox system. The basic calculation of the load carrying capacity is based …” „… help of fatigue life analysis. The herein shown methods and principles are basically applicable to …”

C. Danzer, T. Voigt, T. Günther, R. Tröger From fleet requirements to optimized Dedicated Hybrid Powertrains

„… of the valid solutions based on a multicriterial benefit analysis. Finally, the amount of …” „… , presents a subsequently derived drive strategy based on a combustion engine as the basic concept in …” „… between combustion engine and hybrid technology. The optimization of powertrain components, topologies and …”

F. Leonardi, A. Munoz, L. Guo, F. Liang, M. Degner Electric machine design approaches for electrified powertrains

„… optimum trade-offs. New design concepts and approaches together with optimization techniques and CAE …” „… to resolve some of the challenging design issues. Design optimization using genetic algorithms and …” „… mechanical design optimization are given. INTRODUCTION The electric machine design process has …”

A. Dietrich, H. Klampfl “Friction Stir Welding” – Lightweight through manufacturing technology – The path from a concept to revolutionary gearbox manufacturing

„… systems is the optimization of efficiency and weight. Significant improvements on the above mentioned …” „… create a new product based on an alternative concept for joining light metal housings. The path of …” „… concept will be demonstrated on concrete prototypes. These units have been produced based on findings …”

D. Evenschor, D, Dennin, P. Tenberge Automated design concept generation of automatic transmissions – Design concept generation based on results of transmission synthesis

„… Automated design concept generation of automatic transmissions Design concept generation based …” „… transmissions, the development of new transmissions is assisted by computer based synthesis. Thus, many …” „… meets the optimization criteria (e.g. minimal axial or radial size). Following, gear and shift elements …”

M. Werra, A. Ringleb, C. Sieg, F. Küçükay Thermal behavior of 48 V hybrid systems

„… simulation model based on an optimal CO2 operating strategy in order to compare the potential of various …” „… powertrains based on simulations with an optimal CO2 operating strategy. Therefore, different 48 V powertrain …” „… is simulated. Based on the results, the VDI-Berichte Nr. 2328, 2018 529 thermal stress is analysed …”

B. Arnold, B. Lecointre Shift simulator for shift feel and quality development of manual transmissions

„… natural motion of the lever differs from the realistic shift pattern. Therefore a software based tilt …” „… mentioned in the beginning Opel decided to set up the simulator based on modules which can be added to the …” „… physic-based approach to maximize accuracy in both quasi-static and transient conditions. The simulation model …”

S. Rinderknecht, A. Esser, P. Jardin Relevance of multidimensional real-driving optimization for the development of a battery-electric vehicle 5.0

„… Relevance of Multidimensional Real-Driving Optimization for the Development of a Battery-Electric …” „… Vehicle 5.0 Multidimensional driving cycles based on fleet traffic data for the estimation of the energy …” „… driving cycles based on fleet driving data from Darmstadt are used to analyze the relevance of these …”

M. Bahne, U. Frey, G. Schlager Transmission technology contribution to CO2 roadmap – a benchmark

„… AWD e-Drive as a P4 hybrid. In this context, Magna and GETRAG have focused on the analysis of …” „… . Figure 1: Regional vehicle-based carbon dioxide emissions (International Council on Clean Transportation …” „… developed a modular, scalable carbon dioxide emissions concept. This is based on the GETRAG double clutch …”

G. van Spijk, A. Klaassen, A. van der Leest, A. Brandsma, M. Tweehuysen CVT: dedicated to hybrid solutions – Setting the benchmark on all KPI’s

„… more. Today, the vast majority of vehicles is equipped with ICE based powertrains and the expectation …” „… often based on transmissions, originally designed for use with ICE only, leaving opportunities for …” „… system optimization. A significant part of the hybrid powertrain volume will be equipped with 48 Volt …”

M. Behzad, V. Saxena, M. Schaefer Thermal-hydrodynamic optimization of grooves in a wet clutch

„… at clutch ID. For the thermal analysis the local heat flux was defined based on the contact …” „… Thermal-Hydrodynamic Optimization of Grooves in a Wet Clutch Mohsen Behzad, BorgWarner Inc …” „… , Ketsch 1 Abstract In this study, a three dimensional detailed CFD analysis is performed to …”

N. Dudin, S. Ott, A. Albers, R. Misch, T. Rochlitzer Virtualizing validation processes of electrified powertrain generations

„… . 2015]. Accordingly, carmakers are transitioning from pure hardware-based companies to more …” „… the dependency on expensive physical prototypes and testing vehicles. Based on the IPEK-X-in-the-Loop …” „… activities that are usually carried out with prototype vehicles in road-based testing are reallocated …”

W. van Harselaar, M. Brouwer, T. Hofman A generic transmission model for hybrid electric drives – Integration of the dynamic behavior of all conventional-, electric-, and hybrid-transmission mode types in a single model

„… optimization, series hybrid mode types are implemented with one continuous control variable that determines …” „… speeds for every value of . Again, the computational effort for control optimization is reduced by …” „… concepts based on DCT design. VDI Congress Drivetrain for Vehicles, 2017. [2] Herber, S.: PHEVplus …”

doi.org/10.51202/9783181023280

Michael Simon Josef Walter - Toleranzanalyse und Toleranzsynthese abweichungsbehafteter Mechanismen

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Michael Simon Josef Walter

Toleranzanalyse und Toleranzsynthese abweichungsbehafteter Mechanismen

Series: Konstruktionstechnik/Maschinenelemente

Volume 437 2016

Results in this title

Literatur S. 193-236

„… analysis approach for over-constrained mechanism based on optimization and Monte Carlo simulation …” „… .; Wartzack, S.: Neural network based modeling and optimization of deep drawing – extrusion combined process …” „… .; Fu, J.-C.; Wang, K.-J.: A Neural Network based Approach for Tolerance Analysis. Journal of the …”

doi.org/10.51202/9783186437013

Meysam Joulaian - The hierarchical finite cell method for problems in structural mechanics

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Meysam Joulaian

The hierarchical finite cell method for problems in structural mechanics

Series: Mechanik/Bruchmechanik

Volume 348 2017

Results in this title

Introduction S. 1-4

„… discontinuous integrands which occur in an analysis based on the FCM. To answer this question, we will employ …” „… triangles or quadrilaterals in 2D, and tetrahedra or hexahedra in 3D. The resulting accuracy of an analysis …” „… mesh for a finite element analysis is not feasible or requires a lot of effort. Examples of such …”

Bibliography S. 140-154

„… finite cell method for the J2 flow theory of plasticity. Finite Elements in Analysis and Design, 69:37–47 …” „… Multiscale Analysis Approach. Elsevier, 2013. [18] M. Ainsworth and H. Wajid. Dispersive and dissipative …” „… behavior of the spectral element method. SIAM Journal on Numerical Analysis, 47:3910–3937, 2009 …”

Summary and Outlook S. 133-135

„… which the mesh generation is the main difficulty of the numerical analysis. The main motivation of this …” „… context of the FCM. Accordingly, we proposed a novel approach based on the moment fitting method which …” „… instance in elastoplastic problems. The resulting quadrature rules based on the moment fitting method – in …”

Numerical integration algorithms for the FCM S. 27-71

„… geometrical models used in structural analysis are based on B-rep models. These models commonly employ splines …” „… the fact that the current results are sufficiently accurate for an analysis based on the FCM. In …” „… , and they may appear in almost any finite element-based method that involves non-conforming meshes, e.g …”

Finite cell method for problems in solid mechanics S. 5-26

„… optimization problems [37, 41, 42, 137]. 2.5.1 Elastostatic analysis of a one-dimensional rod We start by …” „… structural analysis. Thus, in order to explain the governing equations, let us consider a problem of linear …” „… are employed in the isogeometric analysis. Unless stated otherwise, the hierarchical shape function is …”

doi.org/10.51202/9783186348180

GJAE - German Journal of Agricultural Economics

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GJAE - German Journal of Agricultural Economics

Browse Volumes: GJAE - German Journal of Agricultural Economics

GJAE Volume 71 (2022) Issue 04 ISSN Online: 2191-4028

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Wolfgang Britz Implementing an Approximation of Cumulative Prospect Theory into Mixed Linear Programming – an Application to Bio-Economic Modelling at Farm-Scale Considering Crop Insurance S. 184-203

„… constrained optimi-zation problem based on a set of distinct futures. Third, the pay-offs are endogenously …” „… follow-up CPT based optimization. Under CPT, futures with losses now receive higher weights, due to a larger …” „… , no im-plementation of CPT into constrained optimization problems exists, allowing for instance, the …”

doi.org/10.51202/2191-4028-2022-04

VDI Wissensforum GmbH - International Conference on Gears 2017

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VDI Wissensforum GmbH (ed.)

International Conference on Gears 2017

Series: VDI-Berichte

Volume 2294 2017

Results in this title

C. Brecher, C. Löpenhaus, J. Brimmers Potential of free flank modifications for beveloid gears S. 553-564

„… . The FE-based tooth contact analysis ZAKO3D is used to analyze the operational behavior of the …” „… Geometry Optimization of Beveloid Gears using Free Flank Modifications Based on the results, the …” „… gears regarding the operational behavior. After a brief overview on existing geometry optimization …”

Titelei/Inhaltsverzeichnis

„… , Finite element method based analysis of planetary 75 G. Korbetis, gear systems considering backlash and …” „… . Bauer, Thermal analysis and optimization of gearboxes 917 R. Hambrecht, by simulation A. Kube Page …” „… Planetary Gear Systems – Design and Analysis S. Grützner Holistic simulation of gearboxes – system …”

R. Müller, L. Schirmer New tolerance concepts for the realization of steel-only worm gears S. 467-478

„… in mind, a product and process analysis is done. Process and product optimization aim at …” „… implementing optimization tasks, which are derived from the analysis. [4] Key Characteristics Key …” „… revealed the benefit of combining tolerance methods for the analyzation and optimization. VDI-Berichte Nr …”

J. Yu, L. Yao, C. Ren, X. Yan, L. Lin Design and experimental validation on a novel tow speed transmission for electric bus S. 97-108

„… demand. Based on the experimental date analysis, the up-shifting time for SDAT is about 0.5s with the …” „… electric vehicle. Taking 8m electric bus as example, do the parameters matching for drive system. Based on …” „… ratios are optimized based on the vehicle simulation. Finally, the experiments on an EV with SDAT are …”

P. Garambois, E. Rigaud, J. Perret-Liaudet Robust optimization of gear macro and micro-geometries in order to minimize static transmission error and gear stiffness fluctuations S. 927-938

„… meshing process. The optimization is carried out by a genetic algorithm named NSGA-II. It is based on the …” „… Robust optimization of gear macro and micro-geometries in order to minimize static transmission …” „… method for the multi-objective optimization of gear macro and microgeometry parameters in order to …”

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

„… Comparative Analysis of few new Procedures for Spur Gears Tooth Profile Optimization with …” „… optimization. Mechanism and Machine Theory 45 (2010) pp.1707–1720 [4] Atanasovska I. et al.: Analysis of the …” „… behavior of gear pairs. Thus, the developing of new optimization procedures and methods for selection of …”

M. Brumm, H. Müller Cyber physical gear production system – Vision of industry 4.0 gear production S. 1209-1218

„… analysis is also needed for quality improvements, process optimization, tool life analysis and continuous …” „… process optimization and operator support. The main goal of the new system is quality optimization and …” „… cost reduction. The whole concept is based on KLINGELNBERGS philosophy that only an open system will …”

Y. Shen, S. Rinderknecht, M. Hoppert General modelling method of power losses in transmission with parameter identification S. 905-916

„… using multiple linear regression analysis includes all the key features of a gear contact, based on the …” „… models in the literature are empirical, based on dimensional analysis. Mauz [23] investigated various …” „… ; , Dimensionless drag torque based on dimensional analysis. VDI-Berichte Nr. 2294, 2017908 Deduced from …”

T. Schöler, H. Binz, M. Bachmann Method for the pre-dimensioning of beveloid gears – Efficient design of main gearing data S. 565-578

„… beveloid gears. Existing tools for contact analysis are based on predetermined main gearing data. Therefore …” „… angles. Fig. 6 shows the approach for the iterative optimization of the cone angles based on solving …” „… gears – also referred to as beveloid gears – are based on cylindrical involute gears, as both gear …”

S. Stoyanov, V. Dobrev, A. Dobreva Investigating dynamic behavior of planetary gear trains through the systematic approach S. 197-208

„… , based upon theoretical analysis, main criteria for applying an appropriate theoretical model for …” „… carries out an optimization of planetary gear trains for vehicles based upon computer aided frequency …” „… elaborated. Based upon theoretical analysis described in details in [11], main criteria for applying …”

J. Fechler, M. Böhm, S. Aberle, V. Merz A contribution to the NVH behavior of plastic gears in automotive applications S. 1531-1540

„… analysis and process optimization. Figure 8 shows the modulation spectrogram of an OK plastic worm gear …” „… manner. 2. The acoustic transfer path Looking at a car interior the analysis of the noise situation can …” „… element simulation model is the basis of this optimization. It was initially developed to understand the …”

C. Brecher, C. Löpenhaus, M. Schroers, T. Frech, P. Scholzen Optimization of NVH behavior of gears by alternative gear materials S. 539-552

„… allows for the evaluation of the noise optimization potential of alternative gear materials based on the …” „… (16MnCr5). For the simulation, the FE-based tooth contact analysis FE-Stirnradkette (STIRAK) is used …” „… developed and integrated in the FE-based tooth contact analysis FE-Stirnradkette (STIRAK). The general …”

T. Nagumo, M. Ishizuka, Y. Satou, S. Matsumura, H. Houjoh Estimation of loaded static transmission error using vibration measurement under operating conditions in a two-stage helical gear reducer S. 857-868

„… tooth surface deviation of the gear pair based on tooth contact analysis. Moreover, effects due to …” „… two-stage helical gear reducer. This method is based on the understanding that vibration is determined by …” „… . Furthermore, we estimated the relative tooth surface deviation of the helical gear pair during operation based …”

B. Schlecht, T. Schulze, K. Riedel Tooth contact analysis under load on double helical-geared planetary gearboxes S. 83-96

„… Tooth Contact Analysis under Load on Double Helical-Geared Planetary Gearboxes Prof. Dr.-Ing …” „… example, the calculation software [2] uses the influence coefficient method, based on finite element …” „… analysis results, to allow real-time calculations of tooth contacts, resulting in a detailed load …”

D. Strasser, S. Troll, R. Sperlich, J. Münch Reliability safeguarding for an 8 MW wind energy gearbox in serial production – Prototype and process development ensuring stable quality at the highest level S. 1085-1100

„… start of series production. Based on the analysis and display of the grinding stock data of gears …” „… fundamentals of that approach are based on Bertsche [1]. A proper risk management by using structured …” „… . D-/P-FMEA: Design-/Process Failure Mode Effect Analysis VDI-Berichte Nr. 2294, 20171088 For the loads and …”

A. L. Kapelevich, Y. V. Shekhtman Root fillet optimization of thin rim planet gears with asymmetric teeth S. 741-750

„… gear engagement loading. The paper describes the analysis and optimization of the tooth root fillet …” „… paper describes the analysis and optimization of the tooth root fillet of thin rim planet gears with …” „… Root Fillet Optimization of Thin Rim Planet Gears with Asymmetric Teeth Dr. Alex L. Kapelevich …”

D. Ghribi, C. Peyrac, M. Octrue Shot peening of gear tooth flanks: Search for an optimal surface topography against the micropitting S. 153-162

„… in this study is based on comparative analyses between the calculations of sensitivity to …” „… : size of shot particles, coverage, etc). The work carried out in this study is based on the …” „… specific image analysis method for quantification of this flank damage through the percentage of the …”

C. Zhang, H. Liu, C. W. Yao, Y. Li Study of vibration for spur gears of tooth profile modification and experimental validation of modification method S. 527-538

„… optimization process of tooth profile modification based on lateral-torsional coupled nonlinear dynamic model …” „… modification parameters and lose mesh, the nonlinear dynamic analysis model is established by Parker et al. [8 …” „… this paper, based on the nonlinear dynamic model of gear transmission, the dynamic profile …”

Z. Roth, J. Opferkuch High load capacity gear root fillet contour with a bézier curve S. 719-732

„… in-house software program, which is iteratively based upon the Finite Element Method. The optimization of …” „… this basis, the professor for damage analysis at the Karlsruhe Institute for Technology developed the …” „… gear root safety. Due to the multitude of combinations the optimization occurs with the help of an …”

Y. Cai, L. Yao, Z. Xie, J. Zhang, C. Peng Influence analysis of system parameters on characteristics of the nutation drive with double circular arc spiral bevel gears S. 435-446

„… obtained. A transmission performance analysis based on the influence of system parameters was achieved and …” „… Influence analysis of system parameters on characteristics of the nutation drive with double …” „… of gear transmission, the nutation drive with double circular arc spiral bevel gears. Based on the …”

B. Kianian, C. Andersson Sustainability-conscious Powder Metallurgy gear manufacturing – An analysis of current manufacturing challenges S. 1251-1264

„… validated by the interviewees. Nevertheless, since empirical analysis is based on interviews, the results …” „… Sustainability-Conscious Powder Metallurgy Gear Manufacturing An analysis of current …” „… and benefit analysis relating to sustainability. An exploratory case study was designed where a series …”

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

„… modifications in order to reduce the radiated noise. The optimization of tooth modifications in simple mesh …” „… . Therefore we consider a mean micro-geometry. The finite element model built cannot always be tuned based on …” „… an experimental modal analysis. Nevertheless, the model can still be used to achieve a good …”

A. K. Shojaei, P. Volgers, M. Cassata Advanced modeling and experimental techniques for fatigue life prediction of plastic gears S. 1575-1582

„… is based upon Continuum Damage Mechanics (CDM) and provides an efficient tool for lifetime prognosis …” „… , and may provide a design tool for optimization tasks. 1. Introduction In most of metal …” „… techniques are required for lifetime prognosis of polymers. Most recently, a fatigue analysis VDI-Berichte …”

J. J. Liou, S. Rakuff The development of worm drives S. 503-516

„… enveloping worm drive is mainly based on the concept of involute profile. The British standard BS 721 …” „… analysis reveals that the contact area between the worm threads and wormgear teeth tends to be a long thin …” „… addressing the worm contact analysis are also available in Ref. [15-17]. The efficiency of a worm drive …”

A. K. Shojaei, P. Volgers An improved lifetime prediction technique for plastic gears through finite element analysis and continuum damage mechanics S. 1109-1112

„… fatigue damage is essential in design optimization tasks. While most of current fatigue analysis …” „… An Improved Lifetime Prediction Technique for Plastic Gears through Finite Element Analysis and …” „… gears. The applicability of the fatigue software, which has been developed based on metal fatigue …”

E. Erkilic, Z. Burcay Optimizing tooth proportions to improve topland Saribay balance in aerospace bevel gears S. 447-456

„… . [3] A. Artoni, M. Kolivand and A. Kahraman, «An Ease-Off Based Optimization of the Loaded …” „… corners on tooth flanks after case hardening. While many studies are present on optimization of gear …” „… topland unbalance by using the proposed optimization procedure. 1. Introduction Literature Review and …”

F. Concli, C. Gorla Numerical modeling of the churning power losses of gears: an innovative 3D computational tool suitable for planetary gearbox simulation S. 881-892

„… analysis. In these fields, the simulation tools have proved to be able to provide reliable information …” „… . Moreover, in the field of structural design and strength analysis, with respect to the various failure …” „… new methodologies based on computational fluid dynamics. With respect to general-purpose commercial …”

S. Grützner Holistic simulation of gearboxes – system simulation S. 51-60

„… optimization of teeth numbers Modern powertrains of electric drive cars are driven by small machines with high …” „… analysis task. Here we can work with a 1D rotational system as shown in Figure 1: Fig. 1: Diagram view …” „… Modelica® based model elements representing inertias, loads, stiffness or detailed tooth contacts (gear …”

W. Wang, L. Han, Q. Yan, C. Xiang, Y. Li Research on the dynamic power split characteristics and the electric power coordinated control for a hybrid transmission system S. 131-142

„… for applying the hybrid electrical driving to the heavy vehicle. Based on the power-split scheme and …” „… analysis of the power-split hybrid transmission system. The analysis indicates that the delay of the …” „… base of the scheme selecting, parameter matching and the power distribution and optimization. For …”

K. Togai, N. Fujinaga A reduced order internal combustion engine model for transmission development S. 1191-1198

„… parameters are significantly reduced. The model is based on a mean value ICE engine model. Output torque is …” „… for optimization in term of calculation time and model preparation works. ICE power output process …” „… proposed a reduced order ICE model based on above concept. The model is based on a mean value ICE engine …”

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

„… . Based on an analysis of the fractured surface the pitting for- VDI-Berichte Nr. 2294, 2017 283 mation is …” „… Crack Propagation Analysis of Pitting Damages of High-Strength Material Systems in Gear …” „… detailed analysis of pitting characteristics and on the comparison with local stress components …”

C. Andersson Grinding or shaving? – Performance based economic decision support in the manufacturing of gears S. 1353-1364

„… required. Based upon the information required to perform the analysis, a project team was assembled …” „… optimization and Activity Based Costing (ABC) is a better choice for long term decision making as well as …” „… Grinding or shaving? – Performance based economic decision support in the manufacturing of gears …”

A. Şorea, F. Buus Bendixen Reluctance magnetic gear – Magnetic gears, no longer toothless S. 615-622

„… magnetic gear based on the reluctance principle is presented and compared to both modern magnetic gears …” „… north pole and black the south pole. Based on the position of the drive, the magnetization is …” „… based on the following facts. The main difference is that the reluctance gear has just one magnet in …”

Y. Wang, B. Peng, G. Liu, L. Liu Design of transmission accuracy of the involute cylindrical gear-worm gear system under large temperature difference based on FE method S. 491-502

„… Temperature Difference Based on FE Method Y. Wang, B. Peng, CALTR&D Center, China Academy of Launch …” „… influenced. In this paper, the finite element analysis method is adopted to the structural analysis of …” „… analysis and error calculation is to find out the cause of error and to study the law of error …”

J. Thomas, C. Wirth Determination and improvement of bevel gear efficiency by means of loaded TCA S. 707-718

„… for tooth contact analysis (TCA) are based on numerical methods. An approach developed by ZG GmbH …” „… allows for the calculation of local efficiency grades, based on values determined by loaded TCA. Due to …” „… the local approach the micro geometry of the gear (based on machine settings) can be optimized …”

M. F. Stangl, U. Kissling, A. Pogacnik A procedure to find best fitting dresser with grinding worm for a new design S. 1307-1318

„… gear pair meshing by using the contact analysis shows finally the achievable gear optimization using …” „… and length is determined with established design methods like contact analysis. The procedure for the …” „… analysis (LTCA) is done to check, if the results (transmission errors, torque deviations, …) are still …”

B. Leupold, V. Janzen, G. Kotthoff, D. Eichholz Validation approach of PM gears for eDrive applications S. 119-130

„… and customer is crucial. Starting with a drawing and loading situation analysis of the gear …” „… PM gear (top right) and the averaged selective analysis for the 1st to 5th orders [15]. Fig. 7 …” „… influenced based on the VDI-Berichte Nr. 2294, 2017124 change in material and porosity. Depending on the …”

M. Shuai, M. Shuai, J. Guoguang, Z. Yidu, L. Chao, H. Haruo Research on multiple-split load sharing characteristics of 2-stage external meshing star gearing system S. 769-782

„… . Load sharing characteristics analysis of power split system based on deflection compatibility and …” „… Abstract Conducting a further analysis on multiple-split loading sharing among star gears of 2-stage …” „… external gearing star gearing system in Aero-engine, and a meshing error analysis on the eccentricity …”

M. McCormick, J. Michaud Isotropic superfinishing of high hardness steels – How using a custom REM ISF® process as a quality control, defect remediation, and isotropic superfinishing procedure can increase the performance of... S. 163-172

„… controls and optimizations. 3. Phase Transformations during Manufacturing of Steels Phase transformation …” „… process for gear, bearing, and airfoil applications, is a conversion coating based process whereby an …” „… fundamentally a leap of faith and not a valid scientific conclusion. Analysis of the white spots found of the …”

C. Weber, T. Tobie, K. Stahl Investigation on the flank surface durability of gears with increased pressure angle S. 173-184

„… examined experimentally. Optimization goals were the power to weight ratio of the transmission and the …” „… available. These calculation methods are based on extensive theoretical and experimental studies on …” „… ]. VDI-Berichte Nr. 2294, 2017174 Scuffing This damage is based on a breakdown of the lubricating film due to …”

B. Kohn, T. Utakapan, M. Fromberger, M. Otto, K. Stahl Flank modifications for optimal excitation behaviour S. 1319-1330

„… noise mesh design is derived. Applied to mesh A, a tooth contact analysis with the program DZP [1, 2] is …” „… ) spectral TE, loads at driving pinion Fig. 2: Tooth contact analysis of mesh A with tip relieves for a high …” „… analysis of mesh A with tip relieves designed for NVH goals 2. Periodic modifications A different …”

A. Lohrengel, M. Heß Thrust cone bearings provide increased efficiency for helical gear units at moderate speed levels – Indications for possible energy saving potential in an expanded field of application S. 231-242

„… thrust cones towards gearboxes constructed with roller bearings. Based on simulations and experiments …” „… thrust cone concepts to 10-20 % compared to classical concepts based on tilting pads. Nevertheless, in …” „… bearing. In gearboxes based on roller bearings the benefit in efficiency shall be gained by a change of …”

V. Angelopoulos, M. Hirsch PM gear rolling simulations using advanced plasticity material model and improved initial conditions S. 1277-1288

„… . The optimization of this process is critical in order to reduce the overall design time and to …” „… , 2017 1277 from powder metal are three; first iron based powder is mixed with carbon and other alloying …” „… distributed void that during deformation can change size, shape and orientation. The model is based on …”

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