Dynamic properties of planetary gears with a flexible ring gear

L. Liu, Y. X. Chen, G. Liu, X. H. Yang, X. Wang

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

Abstract

In this paper, a generalized finite model for planetary gears with a flexible ring gear is presented, where the ring gear is modeled as an elastic body while other gears are represented as rigid bodies. Ring gear is divided into a large number of beam elements and connected with a planet lumped parameter model according to the compatibility of deformation. The dynamic models of different support types of ring gear can be conveniently and exactly established by this method, compared with the traditional lumped parameter model. Based on the generalized finite model, modal properties are obtained analytically. Moreover, four different vibration modes are found in addition to the rotational mode and the translational mode, compared with the lumped parameter model. The study of the influence of ring gear support types on the frequency shows that as the support stiffness decreases, more difference can be seen between the finite model and the lumped parameter model. The dynamic behavior of planetary gear sets is also obtained and the effects of ring gear flexibility on the dynamic properties of planetary gears are discussed, which will be beneficial in the design of low-noise planetary gear sets.

Original languageEnglish
Title of host publicationInternational Conference on Power Transmissions, ICPT 2016
EditorsDatong Qin, Yimin Shao
PublisherCRC Press/Balkema
Pages647-654
Number of pages8
ISBN (Print)9781138032675
DOIs
StatePublished - 2016
EventInternational Conference on Power Transmissions, ICPT 2016 - Chongqing, China
Duration: 27 Oct 201630 Oct 2016

Publication series

NamePower Transmissions - Proceedings of the International Conference on Power Transmissions, ICPT 2016
Volume0

Conference

ConferenceInternational Conference on Power Transmissions, ICPT 2016
Country/TerritoryChina
CityChongqing
Period27/10/1630/10/16

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