复杂环境应力下典型机电产品贮存-值班寿命加速试验方法研究
Accelerated Test Method for Storage-Duty Life of Typical Electromechanical Products under Complex Environmental Stress
荣双龙 1赵朋飞 1刘艳 2王增凯2
作者信息
- 1. 航天科工防御技术研究试验中心,北京 100854
- 2. 北京电子系统工程总体研究所,北京 100191
- 折叠
摘要
目的 建立复杂环境应力下机电产品贮存-值班寿命加速试验方法.方法 依据机电产品贮存-值班寿命剖面、环境因素及基准条件,考虑关键部件可能产生的环境效应与累积损伤,选取拟模拟与加速的环境因素,按照环境应力施加时序及损伤模型,提出一种综合考虑机电产品贮存-值班过程中温度、湿热、盐雾、太阳辐照、温度循环、振动和冲击等环境应力对其寿命影响的加速试验方法.结果 建立了某典型机电产品复杂环境下贮存-值班寿命加速试验剖面.结论 复杂环境应力下机电产品贮存-值班寿命加速试验充分考虑了机电产品在贮存-值班过程中经历的环境应力,能够在一定程度表征机电产品贮存-值班过程中各种环境应力的累积叠加效应.
Abstract
The work aims to establish an accelerated test method for storage-duty life of typical electromechanical products under complex environmental stress.Based on the analysis of the storage-duty life profile,environmental factors and base con-ditions of electromechanical products,the environmental factors for simulation and acceleration were selected considering the possible impact of environmental effects and accumulated damage on key components.According to the time sequence of envi-ronmental stress application and damage model,an accelerated test method was proposed,which comprehensively considered the effect of environmental stress on the life of electromechanical products during storage-duty,such as temperature,damp heat,salt spray,solar irradiation,temperature cycle,vibration,impact,etc.The accelerated test profile for storage-duty life of a typical electromechanical product under complex environment was established.The accelerated life test of electromechanical products under complex environmental stress fully considers the environmental stress experienced by electromechanical products during storage-duty,and can represent the accumulated superposition effect of various environmental stresses during storage-duty of electromechanical products to a certain extent.
关键词
机电产品/贮存-值班寿命/复杂环境应力/累积效应/损伤模型/加速试验Key words
electromechanical products/storage-duty life/complex environmental stresses/accumulated effect/damage models/accelerated test引用本文复制引用
基金项目
技术基础科研项目(JSHS2020209A001)
出版年
2024
NETL
NSTL
万方数据