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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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F. Donner, T. Scheu, M. Weigand Dynamic simulation of a rotor system with variable speed S. 985-994

„… the final planetary stage (PG) via an input module (IM) and a bevel gear (BG). The speed of the main …” „… Architecture 1, the speed variation takes place after the bevel gear and before the final planetary stage, see …” „… Figure 2. In this arrangement, the additional gear group exists only once in the drive train …”

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

„… al.[1-14] established an electromechanical coupling model of a multi-stage gear transmission system …” „… . The dynamics model of the planetary gear train is constructed by the rotating coordinate system of the …” „… stage gear is shown in Fig. 2(a). The parallel stage adopts the acceleration mode of large gear input …”

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

„… capacity of gear stages within complex drivetrains under varying external loads, multi-body-systems (MBS …” „… and an improvement of the modelling of gear stages in multi-body-systems. The further developed …” „… Enhanced Loaded tooth contact analysis of hypoid gears within a multi-body-system simulation …”

P. I. Pedrero, D. Martinez–Lopez, M. Pleguezuelos, J. Calvo–Irisarri, M. B. Sanchez, A. Fernandez–Sison Minimum friction losses in wind turbine gearboxes S. 715-730

„… power loss modelling of wind-turbines two stage planetary gear sets, and includes a parametric study on …” „… a specific multi-MW wind turbine gearbox of Siemens-Gamesa, presently in the design stage, are also …” „… . The gearbox will be made up for three stages: two of them by planetary gears and the output one by …”

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

„… simple planetary gear set (single-stage) consists of multiple planet gears (N) simultaneously in mesh …” „… a detailed foresight about the dynamic characteristics of the gear set right from the design stage …” „… stages and one parallel gear stage. The model considered both the external excitation due to wind gust …”

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

„… bearing-shaft system, the spur gear stage connecting the input and the intermediate bearing-shaft system, the …” „… compo-nent loads acting on the spur gear and hypoid gear stages, bearing forces and relative position of the …” „… losses of the spur gear stage, hypoid gear stage and bearings and the calculated load-dependent power …”

F. Lagier, A. Bischofberger, K. Bause, S. Ott Suitability of additive manufactured PEEK gears as a means of gear sampling for automotive high-speed gearboxes S. 1045-1060

„… inertia of high-accelerating components of the drivetrain, like the gears in the first stage of the …” „… stage. High-frequency excitation of the gear mesh is a known challenge in the high-speed domain [13]. An …” „… example gearbox is evaluated in which the first gear stage, designed with steel gears, is subjected to 20 …”

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

„… : Two-stage gearbox model layout (left) and bearings and gears numbering (right) The output gear stage is …” „… transverse contact ratio εα>2. For both designs, first stage gear mesh order is 23.00 and the second stage …” „… Marano, Gear Lab, Modena, Italy Abstract In this paper, some guidelines are given how to apply the …”

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

„… single stage crossed helical gearbox is modelled at first. Assuming de-viation-free gears and by using …” „… the determination of the load sharing in planetary gear trains [2] and along the face-width of helical …” „… FE Tooth Contact Analysis of Crossed Helical Gear Drives Considering Misalignments and Deviations …”

Titelei/Inhaltsverzeichnis

„… ., Tokyo, JapanEnhanced loaded tooth contact analysis of hypoid gears within a multi …” „… analysis on the oil flow of a gear stage with guide plate 677L …” „… f Quality assurance and measurementThe effect of a multi-stage grinding process on the barkhausen …”

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

„… investigated operating conditions.The test gearbox comprises a bevel gear stage of gear ratio 3.08. The pinion …” „… Prediction of churning losses in an industrial gear box with spiral bevel gears using the smoothed …” „… Sufficient and reliable lubrication is vital to avoid gear and bearing failure under various operating …”

C. A. Celikay, A. Donmez, A. Kahraman An experimental study of parametric resonances of a spur gear pair at speeds above its primary resonance S. 511-522

„… [8] Al-Shyyab, A., Kahraman, A.: Non-linear dynamic analysis of a multi-mesh gear train using …” „… An Experimental Study of Parametric Resonances of a Spur Gear Pair at Speeds Above its Primary …” „… Resonance C. Alper Celikay, Ata Donmez, Ahmet Kahraman, Gear and Power Transmission Research Laboratory The …”

M. Zalfen, J. Lovenich, O. Malinowski, C. Brecher, J. Brimmers, S. Neus, S. Stark, D. Kruger Test rig concept for high power VHCF gear testing S. 485-498

„… electric motor. In order to reach the required rotational speed of the pinion, a gear stage is integrated …” „… Test Rig Concept for High Power VHCF Gear Testing Moritz Zalfen, M.Sc., Johannes Lövenich, Oscar …” „… , Laboratory for Machine Tools and Production Engineering (WZL), Gear Department, Chair of Manufacturing …”

doi.org/10.51202/9783181023891

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

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

„… Gearbox installation space VDI-Berichte Nr. 2328, 2018 243 gearing parameters of a two-stage gear train …” „… Problem-dependent Normal module , For each gear stage Problem-dependent Profile shift , , , For each gear …” „… Problem-dependent Helix angle , For each gear stage Problem-dependent Helix direction - For each gear stage …”

D. Güth, J. Haupt, T. Gassmann Seamless-shift two-speed eAxle with torque vectoring

„… and PHEV on the market today are using single speed gear trains. But a fixed ratio usually requires a …” „… on the A-shield side. The pinion meshes in the first stage of the gear box with an external, driving …” „… gear at the same time. The ration of the first helical gear stage stage is approximately i1 = 3.8 …”

I. Andrasec, B. Jeitler AVL’s future hybrid X mode – A modular transmission family concept

„… an associated gear train, an inverter, a battery, a control unit, a charger and the wiring between …” „… multi-plate shift elements, a single planetary gears set and an extended Ravigneaux planetary gear set. Its …” „… is connected to the inner sun of the Ravigneaux planetary gear with a helical gear train. The rim …”

doi.org/10.51202/9783181023280

Bernhard Geringer, Hanz-Peter Lenz - 39. Internationales Wiener Motorensymposium 26.-27. April 2018

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Bernhard Geringer (ed.), Hanz-Peter Lenz (ed.)

39. Internationales Wiener Motorensymposium 26.-27. April 2018

Series: Verkehrstechnik/Fahrzeugtechnik

Volume 807 2018

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K. Oshima, S. Kato Neues Mehrstufen-Hybridsystem für den LC500h mit innovativen Fahreigenschaften des THSII /New Multi Stage Hybrid System for the LC500h with Innovative Drivability of the THSII S. 443-463

„… Koji OSHIMA , Shunya KATO Toyota Motor Corporation New Multi Stage Hybrid System for the LC500h …” „… the hybrid system by adopting the newlydeveloped Multi Stage Hybrid System, which combines a multi …” „… Potenzial Hybridsystem durch die Hinzufügung eines Multi Stage Schaltmechanismus zum bestehenden …”

J. J. Moon, S. Feldmann, D. Certo, L. K. Cloos, S. Müller Das neue variable Ventiltriebsystem von GM / Opel/The New Valvetrain System of GM / Opel S. 339-358

„… Propulsion Systems, a new tripower multi-discrete-variable valve lift system for future gasoline engine …” „… described with special focus on challenges arising from the multi-discrete variability. The control system …” „… Propulsion Systems in close cooperation with Opel Automobile GmbH, a new variable valve train system …”

doi.org/10.51202/9783186807120

VDI Wissensforum GmbH - Dritev – Drivetrain for Vehicles 2020

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VDI Wissensforum GmbH (ed.)

Dritev – Drivetrain for Vehicles 2020

Series: VDI-Berichte

Volume 2373 2020

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H. Gürbüz, S. Ott, A. Sutschet, J. Kern Highly efficient clutch system for multispeed BEV

„… motor, a multi-speed transmission is required. A powershift clutch is also required for comfortable …” „… gear changes. Today's powershifting clutches are not suitable due to the greatly increased differential …” „… that a shiftable transmission (2-3 gears) can increase the overall efficiency and power density of the …”

D. Kieninger, J. Hemsen, G. Witham The highly integrated ModulED drive module – Holistic concept design

„… Ravigneaux gear set, followed by a cylindrical gear reduction stage. The cooling subsystems of the motor …” „… . high-speed concepts or multi-gear concepts and their effects on the other components are considered in this …” „… three-stage spur gear transmissions were designed. For these transmission concepts, populations of 200 …”

doi.org/10.51202/9783181023730

VDI Wissensform GmbH - Drivetrain Solutions for Commercial Vehicles

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VDI Wissensform GmbH (ed.)

Drivetrain Solutions for Commercial Vehicles

Series: VDI-Berichte

Volume 2421 2023

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J. Hohn, M. Fister, C. Spieker, A. Lemmer Optimisation of an unsynchronized transmission for commercial vehicles up to 7 tonnes S. 161-174

„… , a multi-gear transmission requires additional development effort and entails additional weight …” „… article presents the mechanical realisation and the gear shifting process. Motivation Electrification in …” „… combination of number of motors and gear ratios. In most all-electric passenger cars, the current state of the …”

doi.org/10.51202/9783181024218

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