航天器电子元器件疲劳寿命分析

英文篇名：Fatigue life-span analysis on spacecraft electronic components
中文刊名：计算机辅助工程
英文刊名：Computer Aided Engineering
作者：代锋 ; 唐德效 ; 付永辉 ; 邵兆申
英文作者：DAI Feng ; TANG Dexiao ; FU Yonghui ; SHAO Zhaoshen (Structural Tech. Research Dept. ; Xi’an Branch of China Academy of Space Tech. ; Xi’an 710000 ; China)
中文关键词：航天器电子元器件 ; 振动 ; 热循环 ; Miner累积损伤理论 ; 三带宽技术 ; 疲劳寿命因子
英文关键词：spacecraft electronic component ; vibration ; thermal cycle ; Miner cumulative damage theory ; three-band technology ; fatigue life factor
出版日期：2010-06-15
机构：中国空间技术研究院西安分院结构技术研究室;
年：2010
期：02
出版单位：计算机辅助工程

摘要

为研究空间环境效应对航天器电子设备元器件疲劳寿命的影响,应用Miner累积损伤理论及三带宽技术,根据表贴元器件经历的试验、发射和在轨运行等实际环境进行振动及热疲劳寿命分析.给出振动及热循环疲劳寿命的计算方法,并以某BGA(Ball Grid Array)器件为例进行分析.该方法可为长寿命、高可靠的航天器电子设备抗力学及热设计提供分析途径.
To study the effect of space environment on the fatigue life of spacecraft electronic components,the Miner cumulative damage theory and the three-band technology are used to analyze the vibration and thermal fatigue life-span according to the experienced environment such as test,launch, motion on orbit and so on. A calculation method on the analysis of vibration and thermal fatigue life is proposed and a BGA(Ball Grid Array) component is taken as an example to perform the analysis. The method is an analysis way for the anti-mechanics and thermal design on long life space electronic equipment with high reliability.

引文

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