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工程设计学报
工程设计学报  2008, Vol. 15 Issue (5): 369-372    
机电产品工程设计     
压杆稳定的非概率可靠性凸集合模型分析方法
 魏宗平
宝鸡文理学院 机电工程研究所, 陕西 宝鸡 721007
Non-probabilistic reliability model convex set method for stability analysis of compressive bar
 WEI  Zong-Ping
Institute of Mechanical ＆Electrical Engineering, Baoji University of Arts & Sciences, Baoji 721007, China
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摘要： 针对概率可靠性模型对原始数据要求高的局限性,用凸集合模型来描述影响压杆稳定可靠性分析中的不确定参数,利用一阶Taylor展开式基于凸集合模型讨论了压杆稳定分析中不确定性参数对压杆稳定响应的影响,提出了压杆稳定的非概率可靠性度量的指标.此方法对数据的要求低,不用求概率密度函数而且计算简便.通过对工程实例的计算,其结果表明所提出的方法是一种简便而实用的分析方法.
关键词： 压杆稳定;  不确定参数;  凸集合模型;  非概率可靠性    
Abstract: Due to the limitation that probabilistic reliability model has high requirement on original data, convex set model is adopted to describe the uncertain parameters of reliability analysis on compressive bar stability. Then the impact of these uncertain parameters on compressive bar stability response based on convex set model is discussed by one order Taylor series expansion, and the non-probabilistic reliability index of compressive bar stability is presented. This analytic method avoids seeking probability density function, with a lower requirement on original data and simpler to compute.Finally, through computation of engineering case study, this approach is demonstrated to be simple and practical．
Key words: compressive bar stable    uncertain parameter    convex set model    non-probabilistic reliability
出版日期: 2008-10-28
基金资助:

宝鸡文理学院重点科研计划项目（ZK0625）
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引用本文:

魏宗平. 压杆稳定的非概率可靠性凸集合模型分析方法[J]. 工程设计学报, 2008, 15(5): 369-372.

WEI Zong-Ping. Non-probabilistic reliability model convex set method for stability analysis of compressive bar[J]. Chinese Journal of Engineering Design, 2008, 15(5): 369-372.

链接本文:

https://www.zjujournals.com/gcsjxb/CN/    或    https://www.zjujournals.com/gcsjxb/CN/Y2008/V15/I5/369

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