| 模糊随机荷载激励下模糊桁架结构的模糊随机动力响应的双因子分析方法 |
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| 引用本文： | 马娟,陈建军,谢永强,陈龙.模糊随机荷载激励下模糊桁架结构的模糊随机动力响应的双因子分析方法[J].固体力学学报,2007,28(3):271-274. |
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| 作者姓名： | 马娟 陈建军 谢永强 陈龙 |
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| 作者单位： | 西安电子科技大学机电工程学院,西安,710071 |
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| 摘 要： | 采用了一种新的双因子分析法研究了模糊参数桁架结构在模糊随机荷载激励下的动力响应问题.同时考虑结构参数模糊性和外载荷幅值的模糊随机性,利用模糊因子法和振型迭加法求出了动力响应模糊随机变量;进而基于随机因子法推导了动力响应的模糊数字特征.最后通过算例考察了结构参数和荷载的不确定性对动力响应的影响.
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| 关 键 词： | 模糊桁架结构 模糊随机荷载 动力响应 模糊数字特征 |
| 修稿时间： | 2004-09-07 |
TWO FACTORS ANALYSIS METHOD OF THE DYNAMIC RESPONSE OF A FUZZY TRUSS SYSTEM UNDER A FUZZY-STOCHASTIC EXCITATION |
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| Ma Juan,Chen Jianjun,Xie Yongqiang,Chen Long.TWO FACTORS ANALYSIS METHOD OF THE DYNAMIC RESPONSE OF A FUZZY TRUSS SYSTEM UNDER A FUZZY-STOCHASTIC EXCITATION[J].Acta Mechnica Solida Sinica,2007,28(3):271-274. |
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| Authors: | Ma Juan Chen Jianjun Xie Yongqiang Chen Long |
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| Abstract: | Considering the fuzziness of structural parameters and the fuzzy-randomness of load,fuzzy-randomness of structural dynamic responses and fuzzy numerical characteristics of dynamic response are studied.From Duhamel integral,the fuzzy-stochastic dynamic response is derived by using fuzzy factor method combined with mode superposition method.The fuzzy numerical characteristics of dynamic response are developed with the random factor method.The rationality and validity of the modeling and the proposed approach are examined through an illustative example. |
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| Keywords: | fuzzy truss system fuzzy-random load dynamic response fuzzy numericd characteristics |
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