中国机械工程

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渐开线花键副微动磨损分析的能量耗散法

郑维彤;王三民;颉晓欣;李浩   

  1. 西北工业大学机电学院,西安,710072
  • 出版日期:2017-09-25 发布日期:2017-09-22
  • 基金资助:
    航空推进技术验证计划(APTD计划)资助项目(KY-44-2013)

Dissipated Energy Method for Fretting Wear Analysis of Involute Splines

ZHENG Weitong;WANG Sanmin;XIE Xiaoxin;LI Hao   

  1. School of Mechanical Engineering,Northwestern Polytechnical University,Xi'an,710072
  • Online:2017-09-25 Published:2017-09-22

摘要: 针对航空传动系统中的渐开线花键副,采用能量耗散法,建立了微动磨损量计算公式,并针对三种工况,研究工况因素对磨损分布规律的影响。研究结果表明:①理想工况下,各齿对的磨损量几乎相同,外花键齿廓上齿根接触末端为最大磨损发生位置;存在侧隙时,侧隙越小的齿间磨损越严重;存在轴线偏斜时,齿面在轴向位置的中部发生较大磨损,最大磨损发生位置向齿顶移动。②渐开线花键副设计安装时,为减少微动磨损带来的失效,应尽可能保证各齿间侧隙均匀并减小内外花键的轴线偏斜。

关键词: 渐开线花键副, 能量耗散法, 微动磨损, 有限元分析二次开发, 磨损分布

Abstract: Aiming at involute spline pairs in aerial drive systems,with dissipated energy method,calculation formula for fretting wear amount was established. Besides, for three working conditions, the effects of working conditions on the distribution characteristics were studied. Consequently the conclusions were obtained as follows. Under ideal working conditions, the wear of each tooth is nearly the same, and root contact end on external spline tooth profile acts as the maximum wear position. When there is a lateral gap, the smaller the side gap is, the more serious the wear between the teeth is. When the axial deflection occurs, the wear is more serious in the middle part of the tooth surfaces in the axial position, and the maximum wear position moves towards the top of the tooth. In the design and installation of involute spline pair, to reduce failure caused by fretting wear, it is required to keep the tooth gap between the teeth evenly as far as possible. And the reduction is also suggested for the axis deviation of internal and external splines.

Key words: involute spline pair, dissipated energy method, fretting wear, secondary development of finite element analysis, wear distribution

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