Study on dynamic characteristics and load sharing of a herringbone planetary gear with manufacturing errors

Fei Ren, Datong Qin, Teik Chin Lim, Sung Ki Lyu

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


In this paper, a new and generalized dynamic model for a herringbone planetary gear train (HPGT) is proposed to investigate the free and forced vibration characteristics, as well as load sharing characteristics by employing the lumped-parameter approach. The proposed model takes into account manufacturing eccentric errors of the components and tooth profile errors of all gears. The model can be used for the vibration performance and dynamic load sharing analysis of the HPGT with different types of manufacturing errors and arbitrary number of planets. The free and forced vibration, as well as the load sharing of an HPGT with three planets are numerically computed with the model presented, and these are analyzed respectively in time domain and frequency domain. The effects of the manufacturing eccentric error and tooth profile error as well as component float on load sharing are discussed respectively. Results indicate that manufacturing errors have an impact on dynamic characteristics and load sharing. The float can significantly reduce the load sharing coefficient of the system.

Original languageEnglish (US)
Pages (from-to)1925-1934
Number of pages10
JournalInternational Journal of Precision Engineering and Manufacturing
Issue number9
StatePublished - Sep 1 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


  • Dynamic characteristics
  • Herringbone planetary gear train
  • Load sharing
  • Manufacturing error


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