Dynamic characteristics of vehicular planetary gears influenced by engine excitation and backlash based on nonlinear torsional vibration model

Hui Liu*, Zhongchang Cai, Changle Xiang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

Multiple gear ratios in automatic transmission are achievable with multi-stage planetary gears, where there are both the loaded planetary gear and the idle planetary gear under some gear ratios operation. Due to the change of road conditions, engine runs with different rotational speed and torque, which brings an external fluctuation excitation to the automatic transmission planetary gear set. In addition, the gear backlash becomes larger with the wear increasing during the running. Both engine excitation and gear backlash are important factors that not only influence the vibration characteristic and meshing state of the loaded planetary gear but also those of the idle planetary gear. The objective of this paper was to investigate the change of meshing force state of loaded planetary gear and idle planetary gear influenced by the different backlash and the engine excitation based on a nonlinear torsional vibration model.

Original languageEnglish
Title of host publicationProceedings of the FISITA 2012 World Automotive Congress
Pages115-126
Number of pages12
EditionVOL. 13
DOIs
Publication statusPublished - 2013
EventFISITA 2012 World Automotive Congress - Beijing, China
Duration: 27 Nov 201230 Nov 2012

Publication series

NameLecture Notes in Electrical Engineering
NumberVOL. 13
Volume201 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

ConferenceFISITA 2012 World Automotive Congress
Country/TerritoryChina
CityBeijing
Period27/11/1230/11/12

Keywords

  • Backlash
  • Meshing force
  • Nonlinear vibration
  • Planetary gears
  • Torsional vibration

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