Journal of South China University of Technology (Natural Science Edition) ›› 2011, Vol. 39 ›› Issue (1): 117-123.doi: 10.3969/j.issn.1000-565X.2011.01.022

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

Research on Dynamic Load Sharing Behavior in NGW Planetary Gear Train with Unequal Modulus and Pressure Angles

Ye Fu-min Zhu Ru-peng Bao He-yun Jin Guang-hu   

  1. Nanjing university of aeronautics institute of electrical and mechanical, nanjing, jiangsu 210016
  • Received:2010-06-02 Revised:2010-09-05 Online:2011-01-25 Published:2010-12-01
  • Contact: 朱如鹏(1959一)，男，教授，博士生导师，主要从事机械传动、结构强度、机械CAD及自动化研究 E-mail:rpzhu@nuaa．edu．cn
  • About author:叶福民(1968一)，男，在职博士生，江苏科技大学副教授，主要从事机械设计和机械传动研究
  • Supported by:

    国家自然科学基金资助项目(50775108)；航空科技创新基金资助项目(08B52004)

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Abstract:

An analytical model for NGW planetary gear train with unequal modulus and pressure angles was presented in the dynamic way. In consideration of the eccentric error and tooth-frequency error of parts, the dynamic equation of each planet was found by using the theory of equivalent mesh error and the principle of dynamic equilibrium. After equation being solved, the load sharing characteristics was compared with the normal gear transmission. The load sharing behaviors were analyzed and compared by the values of the sun and the ring pressure angles, the difference of the gear error. The analysis results indicates that planetary gear train which is designed by the suitable pressure angles can improve the load sharing behavior, the floating sun-gear can make it better too, and the rotating speed influences the load sharing greatly, a better load sharing effect can be achieved for theirs unequal modulus and pressure angles under the same rotating speed.

Key words: Planetary gear train, Load sharing, Unequal modulus and pressure angles, Dynamic analysis, Errors