太阳翼驱动机构滚动轴承加速寿命试验方法
首发时间:2013-09-17
摘要:滚动轴承是太阳翼驱动机构谐波齿轮传动系统的重要组成部件,受到时间、技术和费用的限制,如何确切验证滚动轴承的寿命指标是一个难点。本文确定了太阳翼驱动机构滚动轴承加速应力、寿命服从分布以及加速模型,在此基础上设计了合理的加速寿命试验方案。对寿命服从何种分布进行假设检验后,给出了试验数据的具体分析方法,对滚动轴承寿命指标予以验证。
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A method of accelerated life test for rolling bearing of solar array drive assembly
Abstract:Rolling bearing is an important part of harmonic gear transmission system in solar array drive assembly, and how to exactly verify its life is a difficult problem due to limitations of time, technology and cost. On the basis of determining accelerated stress, life distribution and acceleration model, a program of accelerated life test for rolling bearing was designed. After hypothesis testing of life distribution, a method for analyzing test data was proposed, and finally the life index of rolling bearing was verified.
Keywords: spacecraft bearings fatigue testing fatigue life reliability analysis
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