太阳翼驱动机构的故障模式影响分析与时变可靠性研究  

Failure Mode and Effects Analysis and Time Varying Reliability of Solar Array Drive Assembly

作　　者：李彦锋[1] 黄洪钟[1] 黄意贤 LI Yanfeng;HUANG Hongzhong;HUANG Yixian(Center for System Reliability and Safety,University of Electronic Science and Technology of China,Chengdu 611731)

机构地区：[1]电子科技大学系统可靠性与安全性研究中心,成都611731

出　　处：《机械工程学报》2020年第5期108-115,共8页Journal of Mechanical Engineering

基　　金：国家自然科学基金资助项目(51775090)。

摘　　要：作为航天器在轨运行时能量与信号的传输通道、姿态的调节器,太阳翼驱动机构的可靠性直接决定了航天器的工作寿命。传统机械可靠性分析并没有考虑到太阳翼驱动机构性能退化和载荷既具有随机性又具有时间相关性的因素,从而导致常规基于广义应力-强度的可靠性分析方法只能得到一个确定的可靠度值,这并不能完全反映太阳翼驱动机构可靠性随时间变化的情况。在对太阳翼驱动机构进行不确定性分析及故障模式影响分析的基础上研究了其失效判据,建立了一个高精度且与实际更相符的时变可靠性模型,从而构建起一体化的时变可靠性模型技术体系和理论方法,为实现太阳翼驱动机构可靠寿命设计一体化目标以及其质量提升提供理论基础和技术支撑。As the transmission channel of energy and signal during the orbit operation of the spacecraft, the attitude regulator and the reliability of the solar array drive assembly directly determine the working life of the spacecraft. The traditional mechanical reliability analysis does not take into account the degradation of mechanical properties and the fact that the load is both random and time-correlated, resulting in a conventional reliability-based analysis method based on generalized stress-strength, which can only obtain a certain reliability value. It is not possible to fully reflect the change of mechanical reliability with time. Based on the uncertainty analysis and failure mode and effects analysis of the solar array drive assembly, the failure criterion criteria and a high-precision and more realistic time dependent reliability model is proposed. The constructed technical system and theoretical method can provide a theoretical basis and technical support for the realization of the integrated goal of aerospace machinery reliable life design and its quality improvement.

关 键 词：太阳翼驱动机构 空间环境 时变不确定性 代理模型 时变可靠性 

分 类 号：V57[航空宇航科学与技术—航空宇航推进理论与工程]