Filter results

Results (83)

Sort by:

Select all Select all

Page 2

VDI Wissensforum GmbH - Schwingungen von Windenergieanlagen 2016

Partial access

Select

VDI Wissensforum GmbH (ed.)

Schwingungen von Windenergieanlagen 2016

Series: VDI-Berichte

Volume 2281 2016

Results in this title

D. Nalliboyana, J.-P. Yrjönen, M. Klönne Optimization of Gear Configuration for the WTG Dynamic Vibration Responses S. 121-130

„… Optimization of Gear Configuration for the WTG Dynamic Vibration Responses Dharmaraju Nalliboyana …” „… A/S, Denmark Optimization of Gear Configuration for the WTG Dynamic Vibration Responses Mr …” „… gear optimization strategy has an influence on the dynamic vibration response of the Wind Turbine …”

doi.org/10.51202/9783181022818

VDI Wissensforum GmbH - Schwingungen von Windenergieanlagen 2017

Partial access

Select

VDI Wissensforum GmbH (ed.)

Schwingungen von Windenergieanlagen 2017

Series: VDI-Berichte

Volume 2301 2017

Results in this title

D. Nalliboyana, J.-P. Yrjönen, M. Klönne, T. Lubetz, T. Jacob, M. Reuter A systematic approach for optimizing planetary gear sets for low vibrations S. 133-148

„… optimized from several points of view. It is also known that the selected gear optimization strategy has an …” „… , especially with respect to optimizing gear tooth micro geometry. In many cases, however, the initial concept …” „… processes are gearbox and WTG –development tracks. The selection of gear macro geometry is often one of the …”

doi.org/10.51202/9783181023013

VDI Wissensforum GmbH - Dritev – Drivetrain For Vehicles 2019

Partial access

Select

VDI Wissensforum GmbH (ed.)

Dritev – Drivetrain For Vehicles 2019

Series: VDI-Berichte

Volume 2354 2019

Results in this title

A. Grunwald Transmission system footprint related to fatigue, efficiency and NVH

„… analysis including optimization of stress and fatigue of gears, bearings and housings using specified load …” „… macro geometry optimization is typically assessed by systematic modifying of module, pressure angle …” „… is essential for robust gear set option. Figure 7 shows typical optimization approach of transverse …”

S. Foulard, S. Rinderknecht, F. Braun, P. Jardin ecoLIFE3: An approach for a resource-efficient dimensioning of vehicle components based on a holistic optimization with real life load data –paradigm shift in transmission engineering based on big dat...

„… geometry-dependent loads is done within the geometry optimization process for the different components. However, the …” „… component. The last step of the procedure is the optimization of the transmission geometry with regard to …” „… geometry optimization parameter and the more accurate modelling of the manufacturing process chain …”

P. Fietkau, N. Lamparsky, M. Felbermaier, A. Fröhlcke, T. Conze Holistic design approach for electric drives

„… to be adapted to obtain a geometry suitable for casting. Fig. 5: Topology optimization …” „… the original geometry of a final drive gear wheel is shown. The calculated flank line error shows …” „… Transmission DPS, the first step is to design all the parts of the gear sets in accordance with common …”

C. Leonhardt, M. Otto, K. Stahl Potential of lightweight construction and component properties of joined spur gears

„… application and adapted to the center distance of the test rig (cf. Table 1). Table 1: Gear geometry of the …” „… test gears geometry value Symbol Value Unit normal module mn 2.0 mm angle of pressure αn 20 …” „… surface of the gear rim has a polygon geometry in peripheral direction and a concavely formed crowning in …”

O. Simon, W. Heubner Triple wet clutch module and actuation system, shift cylinders and park lock for modern hybrid transmissions – Architecture and technical description of a triple wet clutch unit and the related active...

„… functions as park lock and gear shift cylinders. The actuation system is a Valeo innovation which considers …” „… the needs of DHTs. It can actuate three clutches and operate the shifting of the gears and park lock …” „… packaging optimization and function integration. The packaging optimization will be achieved with a smart …”

D. Schweigert, M. Mileti, B. Morhard, M. Sedlmair, M. Fromberger, M. Otto, T. Lohner, K. Stahl Innovative transmission concept for hyper-high-speed electromechanical powertrains

„… , Karsten Stahl, Gear Research Center (FZG), Technical University of Munich Abstract More and more …” „… machines and the transmission system as a whole. The decreased gear input torques deriving from the high …” „… these aspects are being investigated in the joint project “Speed4E” under the leadership of the Gear …”

C. Dassler, M. Kurch, M. Nichols NVH-challenges and solution approaches in electric drive development from the supplier‘s view

„… oscillations can influence the gear mesh noise of a connected transmission. Using the calculated force data …” „… typical wheel speed range if dimensioned correspondingly. Due to cost and efficiency optimization, they …” „… possible speed and torque ranges for an electric motor with fixed gear ratio and an ICE transmission with …”

S. Kurokawa, M. Kunihisa, Y. Oyama Development of a new next-generation CVT for small cars

„… in reverse gear had the effect of lowering the through low gear ratio in forward gears more than …” „… necessary owing to the relationship with the gear ratios of the planetary gear set in the forward/reverse …” „… . VDI-Berichte Nr. 2354, 2019 387 Therefore, the planetary gear set of the forward/reverse changeover …”

A. Moser, F. Brezger Efficiency improvements in transmissions using new latching technologies in clutch & hydraulic actuation systems

„… continued by system optimization and single component optimization. The ratio between achievable potentials …” „… specific implementations which still bear a minimum of necessary power demand after optimization. The most …” „… transmission consists of two transmissions responsible for either all even or odd gears. With overlap shifts …”

M. Scherpelz, J. Bernhardt, T. Weyh Simulation of load cycles for commercial vehicle drivelines based on statistical reasoning

„… Campaign, Fraunhofer ITWM). From the results, the gear distribution and the load cycles for the main …” „… geometry as well as a unique road type and a unique identifier or name. In addition, the land-use …” „… whether it is in the selection or not. This can be modeled as a linear integer optimization problem. The …”

H. Gürbüz, S. Ott, A. Albers Potentials for improving the system behaviour of highspeed clutches for BEV using optimal transmission springs

„… gear selection offer only one compromise between the maximum achievable speed and the required …” „… solution is the use of a variable gear ratio for starting and maximum speeds, so that the size of the …” „… of the gear contacts and rolling bearing fatigue strength, the clutch in particular is of central …”

A. Kooy, R. Seebacher Minimize torsional vibrations – Full isolation if necessary

„… influences for tolerance evaluations and damper optimization [2,3]. Beyond that, it is important to develop …” „… used, a preload by the EM is needed to prevent the gears from clattering. VDI-Berichte Nr. 2354, 2019 …” „… the rotating masses in conjunction with the flange, pendulum and roller geometry, that Schaeffler is …”

doi.org/10.51202/9783181023549

VDI Wissensforum GmbH - Dritev – Drivetrain For Vehicles 2018

Partial access

Select

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

„… tasks related to NVH, efficiency and low weight: Gear macro geometry Selection of number of teeth …” „… macro geometry design is also very important for further system attributes. Main challenge in gear …” „… , efficiency and lightweight are performed: Gear micro geometry [1] The subsequent definition of the gearing …”

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

„… meets the optimization criteria (e.g. minimal axial or radial size). Following, gear and shift elements …” „… geometry by these parameters and increases the center to center distance of sun gear and planet gear by …” „… using the computed dedicated gear elements’ geometry of every center-tocenter-distance basic value in …”

U. Reichert, F. Busch, S. Ott, K. Bause Potential of lightweight design of a vehicle transmission by usage of high strength steels

„… slipping. The housing is represented by substitute geometry around the shafts, gear wheels, bearings and …” „… geometry of the gear wheel. Therefore, the transfer of these values from the databases to the real …” „… massively transformed components such as shafts and gears. As a basis for determining the lightweight …”

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

„… gear geometry is defined based on available knowledge and a decisive load spectrum for the considered …” „… gear is evaluated. Based on the gear geometry, S/N- and T/N-curves can be determined. In a next step …” „… reached, the gear geometry has to be modified in an iterative process until these requirements are …”

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

„… determination include: a) Gear geometry The gear geometry is calculated according to Köhler/Rögnitz [10] and …” „… Calculate gear forces and bearing reaction forces Calculate gear geometry Gearbox properties Check for …” „… Multi-Objective Gearbox Design Optimization for xEV-Axle Drives under Consideration of Package …”

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

„… elasticity when a gear is selected. Plunger properties are also taken from geometry for VDI-Berichte Nr …” „… contacts models between sleeve, blocker ring, cones and idle gears (see Fig. 12). Real geometry of teeth …” „… of the user such as vehicle speed, engine rpm, engaged gear, movement of shift lever in shift and …”

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 …” „… central machine element, which transmits the torque and provides the desired gear ratio, is a hypoid …” „… bevel gear set. This gear set is built into a housing which gives bearing support to the gears …”

M. Roßhuber, G. Schromm, K. Kranz The new BMW automatic transmission – Challenges in development

„… reduced. New functions for shift process and shift points allow precise and quick gear changes with …” „… years. Through optimization and new concepts in hardware, but above all functionally and in …” „… concept, are the gear set topology, the drive-off element with the torsional vibration damping system …”

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

„… on driver inputs, restrictions, environmental conditions and situation-dependant optimization …” „… possible in physical vehicle environments. For example, the effects of optimizing the gear shifting logic …” „… approaches [Seifert et al. 2008], simulation models derived purely from geometry (e.g. CAD models, digital …”

doi.org/10.51202/9783181023280

Hans Peter Lenz - 38. Internationales Wiener Motorensymposium 27.-28. April 2017

Partial access

Select

Hans Peter Lenz (ed.)

38. Internationales Wiener Motorensymposium 27.-28. April 2017

Series: Verkehrstechnik/Fahrzeugtechnik

Volume 802 2017

Results in this title

P. Ramminger, R. Matthé, M. Herrmann, R. Jäger Das elektrische Antriebssystem im neuen Opel Ampera-e/The Electric Propulsion System in the New Opel Ampera-e

„… Element design runs to optimize the motor geometry. Design optimization was aimed at maximizing motor …” „… individually and as an integrated system. The new design and numerous optimization loops delivered …” „… remarkable optimization details, resulting from rigorous analysis. The paper compares the performance …”

doi.org/10.51202/9783186802125

1

2

3 ... 17