基于疲劳寿命理论的膜盘联轴器型面设计

李琳; 范雨

基于疲劳寿命理论的膜盘联轴器型面设计

李琳,
范雨

北京航空航天大学能源与动力工程学院, 北京 100191

详细信息

中图分类号: TH 133.2
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出版历程
- 收稿日期: 2009-10-28
- 网络出版日期: 2010-12-30

Molding surface design of membranous disc couplings based on fatigue life analysis

Li Lin,
Fan Yu

School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 区别于传统的基于强度理论的膜盘联轴器型面设计方法,提出了一种基于膜盘联轴器动力学分析和疲劳寿命理论的型面设计方法.建立了分析膜盘联轴器应力及寿命的简化有限元模型,给出了作用在此模型上的边界条件和初始条件,建立了膜盘联轴器动静复合应力分析方法.根据动力学分析的结果,讨论了膜盘联轴器工作时,不同类型的载荷对其疲劳寿命的影响.计算对比了几种典型型面在不同复合载荷作用下的寿命;基于疲劳寿命理论对膜盘联轴器的型面设计给予评价,最后给出各典型型面的适用工况.
- 膜盘联轴器 /
- 型面设计 /
- 疲劳寿命分析 /
- 复合应力分析
Abstract: A membranous disc coupling design method was proposed based on the standpoint of fatigue life analysis, to select and evaluate the molding surface function at a given operating condition. The method of modeling membranous disc in finite element method(FEM) was discussed, and the boundary conditions were derived based on this FEM model. A dynamic analysis method was presented to get the stress caused by complex operating condition. Based on dynamic stress analysis, effects on fatigue life caused by several typical complex operating conditions were given. Fatigue life of three typical membranous disc couplings with different molding surface were compared, and the method of evaluate the design of molding surface of membranous disc coupling by fatigue life analysis was suggested. The corresponding operating conditions of the typical molding surfaces were given.
- flexible coupling /
- design /
- fatigue damage /
- stress analysis

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