M-DOF dynamic model for load sharing behavior analysis of PGT

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• 作者：Huimin Dong ; Yangyang Wu ; Delun Wang…
• 关键词：PGT ; M ; DOF dynamic model ; Time ; varying mesh stiffness ; Load ; sharing ; Manufacturing and assembly error
• 刊名：Journal of Mechanical Science and Technology
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：30
• 期：3
• 页码：993-1001
• 全文大小：980 KB
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• 作者单位：Huimin Dong (1)
  Yangyang Wu (1)
  Delun Wang (1)
  Shaoping Bai (2)
  
  1. School of Mechanical Engineering, Dalian University of Technology, Dalian, Liaoning, China
  2. Dept. Mechanical and Manufacturing Engineering, Aalborg University, Copenhagen, Denmark
  
• 刊物类别：Engineering
• 刊物主题：Mechanical Engineering
  Structural Mechanics
  Control Engineering
  Industrial and Production Engineering
  
• 出版者：The Korean Society of Mechanical Engineers
• ISSN：1976-3824

文摘

A Multi-degree-of-freedom (M-DOF) nonlinear dynamic model for n-pinion Planetary gear train (PGT) is presented in this paper to investigate load sharing behavior of planet gears. In this dynamic model, manufacturing and assembly errors, elastic deformation and time-varying mesh stiffness are considered. Two sets of elastic compatibility equations are proposed to describe compatibility relationship between displacements, errors and elastic deformations. By means of Ishikawa formula, time-varying mesh stiffness of the gear pair is determined. The dynamic motion equations are solved with Runge-Kutta numerical integral method, which yields the displacements and deformations of each component. With the model, dynamic load sharing behavior of planet gears is evaluated. An example of 3-pinion PGT dynamic modeling is included, for which the influence of floating sun gear and adding flexible planet pin on the load sharing characteristics is analyzed.