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Frequency coupling and dynamic characteristics of nonlinear meshing force for two-stage planetary gears

  • Hui Liu
  • , Zhong Chang Cai
  • , Chang Le Xiang
  • Special Vehicle Technology Center of China Space Sanjiang Group
  • Beijing Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

Based on Lagrange's equation, the translational-torsional coupled nonlinear dynamic model of two stage planetary gears was established considering backlash, time-varying mesh stiffness and its phase difference, gear mesh composite errors, time-varying planet wheel position angle, and torsional and bending stiffnesses of connectors among different stages. According to the relationship among torques of connection shafts and vibration displacements of parts, the meshing frequency coupling phenomenon of mesh force for different stages was studied. Under different excitation conditions, the forms of meshing frequency coupling were analyzed. At the same time, the dynamic load coefficient and the load sharing coefficient of meshing force for different stages, and the dynamic characteristics of torques of connection shafts were calculated. The results provided a reference for design and dynamic analysis of multi-stage planetary gears.

Original languageEnglish
Pages (from-to)13-23
Number of pages11
JournalZhendong yu Chongji/Journal of Vibration and Shock
Volume34
Issue number19
DOIs
Publication statusPublished - 15 Oct 2015

Keywords

  • Dynamic load coefficient
  • Load sharing coefficient
  • Meshing force
  • Meshing frequency coupling
  • Nonlinear
  • Planetary gears

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