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具有独立失效模式的多自由度非线性振动系统的可靠性分析 被引量:13

RELIABILITY ANALYSIS OF MULTI-DEGREE-OF-FREEDOM NONLINEAR VIBRATION SYSTEMS WITH INDEPENDENCE FAILURE MODES
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摘要 对不考虑失效模式相关性的多自由度非线性随机振动系统可靠性进行了研究。在结构系统响应和状态函数的前四阶矩的一般数学表达式的基础上 ,使用 Edgeworth级数把未知响应和状态函数的概率分布展开成标准的正态分布表达式 ,并放松了对随机参数的分布概型和激励类型的限制 。 The reliability analysis of uncertain multi degree of freedom nonlinear vibration systems with independence failure modes subjected to random excitation is examined. A statistical fourth moment method is developed to determine the first four moments of the system response and state function. The distribution function of the system response and state function is approximately determined by the standard normal distribution functions using Edgeworth series, and its reliability is obtained.
出处 《航空学报》 EI CAS CSCD 北大核心 2002年第3期252-254,共3页 Acta Aeronautica et Astronautica Sinica
基金 国家自然科学基金 (19990 5 10 5 0 175 0 43 ) 973项目(19980 2 0 3 2 0 ) 教育部高等学校骨干教师资助计划和吉林省科技发展计划 (19990 5 0 1-0 1)
关键词 随机参数 多自由度非线性振动系统 可靠度 四阶矩技术 Edgeworth级数 random parameters multi degree of freedom nonlinear vibration systems reliability statistical fourth moment method Edgeworth series
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参考文献6

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