过盈连接结构微动滑移矢量计算方法

发布时间：2018-05-09 02:42

本文选题：行星架 + 过盈连接　；参考：《机械传动》2016年04期

【摘要】：过盈连接结构受力后接触表面会产生小幅的相对滑移幅值,当其处于一定范围之间时,微动疲劳寿命缩短。针对一种设计的行星架过盈连接结构,为了评价该结构过盈连接处设计的合理性,借助Workbench有限元分析软件分析过盈配合处微动滑移幅值情况。考虑到从Workbench无法直接获得指定方向和某个加载步的滑移幅值,提出一种提取滑移矢量的方法,分析指定方向和加载步的滑移幅值。结果表明,在加载阶段,后端过盈接触区域微动滑移幅值处于临界值范围内,微动疲劳寿命较短,分析结果可为结构设计改进提供参考。
[Abstract]:The contact surface of the interference joint structure will produce a small relative slip amplitude when it is in a certain range, the fretting fatigue life will be shortened. In order to evaluate the rationality of the design of the interference joint of the planetary frame, the fretting slip amplitude of the interference fit is analyzed by means of Workbench finite element analysis software. Considering that the slip amplitude of specified direction and loading step can not be obtained directly from Workbench, a method of extracting slip vector is proposed, and the slip amplitude of specified direction and loading step is analyzed. The results show that the fretting slip amplitude of the back-end interference contact region is within the critical range and the fretting fatigue life is shorter in the loading stage. The analysis results can provide a reference for the structural design improvement.
【作者单位】：大连理工大学机械工程学院;大连华锐重工集团股份有限公司;
【基金】：辽宁省科技创新重大专项:6-8MW大型海上风力发电齿轮箱No.201303004
【分类号】：TH131.7

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