吉林大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (6): 1772-1779.doi: 10.13229/j.cnki.jdxbgxb201606003

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Optimization of macro-geometric parameters of helical gears of transmissions to reduce vibration

ZONG Chang-fu1, REN Ming-hui1, 2, WAN Ying1, CHEN Tao2, BAI Ying-bo3   

  1. 1.State Key Laboratory of Automotive Simulation and Control,Jilin University,Changchun 130022,China;
    2.R&
    D Center, China FAW Group Corporation, Changchun 130062,China;
    3.College of Mechanical Science and Engineering, Jilin University, Changchun 130022,China
  • Received:2016-01-25 Online:2016-11-20 Published:2016-11-20

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Abstract: A method to optimize the macro-parameters of helical gears in transmissions is developed to reduce meshing vibration in initial design phase of the transmission gearbox. In the optimization model, the optimization variables include the modulus, the helical angle, the tooth wide, the top gap coefficient etc. The optimization target is the synthesis of reducing meshing vibration and reducing the volume of the gear pair. The constraint conditions include the standard requirements and the strength requirement. The fluctuation value of the dynamic transmission error is considered as the index of the vibration. To calculate the dynamic transmission error of the helical gear pairs, the helical gear pair is approximated as the superposition of many smaller spur gear pairs, and the phase difference of the meshing angles of adjacent smaller spur gear pairs is considered. The deformation calculated by Ishikawa method and the circumferential deformation are considered in the dynamic transmission error and the dynamic meshing stiffness calculation of the smaller spur gear pairs. The optimization results show that the method developed in this paper can effectively reduce the transmission error of the helical gear by 41% and reduce the volume by 1.34%.

Key words: vehicle engineering, transmission, helical gears, transmission error, vibration damping optimization, macro-geometric parameters

CLC Number: 

  • U463.212
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