航天电连接器综合应力加速寿命试验优化设计的研究
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摘要
本文以Y11X-1419圆形电连接器为研究对象,在分析航天电连接器在环境温度和
振动应力综合作用下失效机理的基础上,建立了航天电连接器的可靠性统计模型,提
出并研究了航天电连接器综合加速寿命试验方案的优化设计方法和模拟评价方法,同
时对试验方案进行了优化设计和模拟评价。
首先,介绍了国内外可靠性研究的发展历史和现状,对可靠性试验的方法及发展
趋势,航天电连接器可靠性研究的现状和存在的问题,可靠性试验方案优化设计中存
在的问题进行了回顾和评述。
其次,详细介绍了航天电连接器表面镀层工艺问题,探讨了航天电连接器在温度
和振动应力综合作用下的失效机理,推断出失效物理方程,根据航天电连接器的结构
和磨损腐蚀物的增长规律确立了航天电连接器的失效寿命分布,建立了可靠性统计模
型,为加速寿命试验方案的制定奠定了基础。
第三,通过比较全面试验设计、正交设计和均匀设计各自的特点,针对可靠性加
速寿命试验的实际要求,寻找了一组较优的应力水平搭配方案,使产品在正常应力水
平时寿命估计值的精度较高,试验时间较短,同时减少样本数量。
第四,建立并研究了航天电连接器在环境温度和振动应力综合作用下的加速寿命
试验方案的优化设计模型,并依据所提出的优化设计方法和均匀正交试验理论对航天
电连接器综合应力加速寿命试验方案进行了优化。
第五,提出并研究了加速寿命试验方案的模拟评价方法。对均匀正交试验方案和
全面试验方案进行模拟评价和比较,以证实均匀正交试验方案的可行性。并最终确定
最优的加速寿命试验方案,为后期的试验工作做好准备。
最后,对全文的研究内容进行了总结,并指出了航天电连接器可靠性试验和数据
统计分析研究中需要进一步研究的内容及本基金课题的下一步工作方向。
In this dissertation, the model Y1 1X-1419 electrical connector was taken as the object, under temperature and vibration stresses, the failure mechanism has been analyzed, the Reliability Model has been built. Based on above, the Accelerated Life Test Optimum Design Model of electrical connectors has been attained, and the Simulated Evaluation on the Optimum Model has been done.Firstly, briefly stated the developing history and current situation of Reliability Engineering, introduced the Reliability Test Methods and developing trends. Moreover, the electrical connectors' reliability research's current situation and existing problems, and the existing problems on reliability test plan optimum design were presented.Secondly, introduced the surface plating technology for electrical connectors in detail, through analyzing the failure mechanism of electrical connectors under temperature and vibration stresses, educed the failure physical equation, according to the structure of the electrical connectors and the regular pattern of the wearing and corrosion products growing process, established the reliability statistical model, laid a foundation for working out electrical connectors reliability test plans.Thirdly, by means of comparing the comprehensive test design, orthogonal design and uniformly design, adapt to the actual requirements of accelerated life test, catch an excellent accelerated life text plan, which make the estimate value have the well precision in normal stress level, at the same time that can reduce the sample number and shorten the test time.Fourthly, built and researched optimizing design model of constant stress accelerated life test plans under the temperature and vibration stresses. Combined with the uniformly orthogonal design, the test plan has been optimized.Fifthly, proposed and researched the evaluation method of accelerated life test plans by simulation. Through comparing and simulating the uniformly orthogonal design plan and comprehensive test plan, proved that the uniformly orthogonal design plan is feasible, and given out the final optimum test plan.Eventually, gave a conclusion to research content of the entire dissertation, and proposed the research content of the reliability test and analysis of electrical connectors, and the research direction of this Foundation project.
振动应力综合作用下失效机理的基础上,建立了航天电连接器的可靠性统计模型,提
出并研究了航天电连接器综合加速寿命试验方案的优化设计方法和模拟评价方法,同
时对试验方案进行了优化设计和模拟评价。
首先,介绍了国内外可靠性研究的发展历史和现状,对可靠性试验的方法及发展
趋势,航天电连接器可靠性研究的现状和存在的问题,可靠性试验方案优化设计中存
在的问题进行了回顾和评述。
其次,详细介绍了航天电连接器表面镀层工艺问题,探讨了航天电连接器在温度
和振动应力综合作用下的失效机理,推断出失效物理方程,根据航天电连接器的结构
和磨损腐蚀物的增长规律确立了航天电连接器的失效寿命分布,建立了可靠性统计模
型,为加速寿命试验方案的制定奠定了基础。
第三,通过比较全面试验设计、正交设计和均匀设计各自的特点,针对可靠性加
速寿命试验的实际要求,寻找了一组较优的应力水平搭配方案,使产品在正常应力水
平时寿命估计值的精度较高,试验时间较短,同时减少样本数量。
第四,建立并研究了航天电连接器在环境温度和振动应力综合作用下的加速寿命
试验方案的优化设计模型,并依据所提出的优化设计方法和均匀正交试验理论对航天
电连接器综合应力加速寿命试验方案进行了优化。
第五,提出并研究了加速寿命试验方案的模拟评价方法。对均匀正交试验方案和
全面试验方案进行模拟评价和比较,以证实均匀正交试验方案的可行性。并最终确定
最优的加速寿命试验方案,为后期的试验工作做好准备。
最后,对全文的研究内容进行了总结,并指出了航天电连接器可靠性试验和数据
统计分析研究中需要进一步研究的内容及本基金课题的下一步工作方向。
In this dissertation, the model Y1 1X-1419 electrical connector was taken as the object, under temperature and vibration stresses, the failure mechanism has been analyzed, the Reliability Model has been built. Based on above, the Accelerated Life Test Optimum Design Model of electrical connectors has been attained, and the Simulated Evaluation on the Optimum Model has been done.Firstly, briefly stated the developing history and current situation of Reliability Engineering, introduced the Reliability Test Methods and developing trends. Moreover, the electrical connectors' reliability research's current situation and existing problems, and the existing problems on reliability test plan optimum design were presented.Secondly, introduced the surface plating technology for electrical connectors in detail, through analyzing the failure mechanism of electrical connectors under temperature and vibration stresses, educed the failure physical equation, according to the structure of the electrical connectors and the regular pattern of the wearing and corrosion products growing process, established the reliability statistical model, laid a foundation for working out electrical connectors reliability test plans.Thirdly, by means of comparing the comprehensive test design, orthogonal design and uniformly design, adapt to the actual requirements of accelerated life test, catch an excellent accelerated life text plan, which make the estimate value have the well precision in normal stress level, at the same time that can reduce the sample number and shorten the test time.Fourthly, built and researched optimizing design model of constant stress accelerated life test plans under the temperature and vibration stresses. Combined with the uniformly orthogonal design, the test plan has been optimized.Fifthly, proposed and researched the evaluation method of accelerated life test plans by simulation. Through comparing and simulating the uniformly orthogonal design plan and comprehensive test plan, proved that the uniformly orthogonal design plan is feasible, and given out the final optimum test plan.Eventually, gave a conclusion to research content of the entire dissertation, and proposed the research content of the reliability test and analysis of electrical connectors, and the research direction of this Foundation project.
引文
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[3] 王家平.机械系统可靠性分析中几个关键问题的研究:[学位论文].杭州:浙江大学,1995
[4] [日]盐见弘.失效工程基础.北京:科学出版社,1982
[5] Pierschka E. Principle of Reliability. Prentice-Hall Inc, 1963
[6] [日]川崎义人.可靠性、维修性总论.北京:机械工业出版社, 1988
[7] Lusser R. A Study of Methods for achieving Reliability of Guided Missiles. NAMTC Tech Rep, No. 75, V. S. Naval Test Center, 1950
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[9] Carhart R R. A Survey of the current Status of the Electronic Reliability Problem. The RAND. Corp. RM-1131, 1953
[10] 李能贵.电子元器件的可靠性.西安: 西安交通大学出版社,1990
[11] 樊晓燕.基于随机有限元法的机械强度可靠性设计的研究: [学位论文]杭州:浙江大学, 1992
[12] 王述设.概率论与模糊数学--统计学的两大基石.数理统计与管理, 1989(2):45-47
[13] 黄洪钟.对常规可靠性理论的批判性评述.机械设计,1994,(3):1-5,47
[14] 陈生宝.试论模糊可靠性.系统工程理论与实践,l991,(6):42-50
[15] 李延杰.模糊可靠性的概念和方法探讨.系统工程理论与实践,1989,(3):26-3l,11
[16] 许伟文.提高电子产品可靠性-可靠性管理与可靠性设计双管齐下的努力.中国机械工程学会可靠性工程专业学会, 第一届可靠性工程学术年会论文集,1988:6-9
[17] 机械电子工业部科技司,机械研究院可靠性研究中心.机电产品可靠性考核评定方法汇编.1990
[18] Halsey B Chenoweth. Reliability Testing桟hallenges and Trends. The Journal of Environmental Sciences, 1987,30(1): 18-20
[19] 张菊华.国外电连接器可靠性试验情况介绍.机电元件,1988,8(1):35-41
[20] 美国军用标准MIL-STD-1344A, 电连接器试验方法.电子部标准化研究所, 1983,4
[21][美]George F.Guth.关于MTL-HDBK-217B中规定的电连接器失效率数学模型的修正及定量估计.机电元件, 1991,11(3):17-2l
[22] Stuart Koford. Connector Reliability in the Military Environment. 21st Annual Connector and Interconnection Technology Symposium, 1988: 365-371
[23] 林雅则.接插件的可靠性及寿命试验.电了情报通信学会全国大会讲演论文集, 1989(5):331-332
[24] 吉田和久.接插件动触头可靠性评价方法.松下电工技报,1989(38):26-29
[25] 林雅则.接插件可靠性寿命的综合试验方法.电子情报通信学会春季全国大会讲演论文集,l988(PtC-2): 299-300
[26] 真野口夫.接插件可靠性研究.电子情报通信学会技术研究报告,1988,8(33):1-4
[27] 周士吉.关于连接器接触材料的试验与检测.机电元件,1991,11(1):45-56,59
[28] 余玉芳.机电元件技术手册.北京:电子工业出版社,1992
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