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Mughal et al - Abstract - DSTA 2021.pdf (251.31 kB)

Effect of gear mesh stiffness and lubricant nonlinearities on the dynamic response of gear transmission systems

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conference contribution
posted on 2022-02-15, 16:42 authored by Hamza MughalHamza Mughal, Nader DolatabadiNader Dolatabadi, Ramin RahmaniRamin Rahmani
Gear dynamic response is the underlying cause of gearbox noise, vibration, and harshness (NVH) in automotive powertrains. Gear whine, a dominant form of gearbox NVH in electric vehicles, is caused by static and dynamic errors induced mainly by the variation in gear mesh stiffness. Therefore, an accurate evaluation of time-varying mesh stiffness (TVMS) is important. A dynamic model of a simple spur gear system is developed using an improved analytical TVMS method combined with a nonlinear Hertzian contact model. The nonlinear stiffness and damping of lubricant under elastohydrodynamic regime of lubrication (EHL) is adapted to investigate NVH performance of the system. Results from literature are used to verify the model. The effect of nonlinearities on the system stability and response are identified.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

DSTA-2021 Conference Books – Abstracts: 16th International Conference Dynamical Systems Theory and Applications

Pages

698 - 699

Source

16th International Conference "Dynamical Systems – Theory and Applications" (DSTA 2021)

Publisher

Lodz University of Technology Press

Version

  • VoR (Version of Record)

Rights holder

© Politechnika Łódzka

Publisher statement

Reproduced with the permission of the publisher.

Publication date

2021-12-01

ISBN

9788366741201

Language

  • en

Editor(s)

Jan Awrejcewicz; Marek Kaźmierczak; Jerzy Mrozowski; Pawel Olejnik

Location

Online

Event dates

6th December 2021 - 9th December 2021

Depositor

Hamza Mughal. Deposit date: 15 February 2022

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