| 具有多随机参数的压电桁架结构可靠性的初探 |
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| 引用本文： | 杨多和,安伟光,王滨生,苗晗.具有多随机参数的压电桁架结构可靠性的初探[J].兵工学报,2006,27(2):320-324. |
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| 作者姓名： | 杨多和 安伟光 王滨生 苗晗 |
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| 作者单位： | 哈尔滨工程大学航天工程系，黑龙江哈尔滨150001 |
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| 基金项目： | 国防科工委军工技术基础基金，国防科工委预研项目 |
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| 摘 要： | 对具有多随机参数的压电桁架结构，考虑电荷载和机械荷载联合作用的机电耦合效应，以材料的断裂强度、损伤电场强度、杆元的截面积和外荷载为随机变量，给出了该压电桁架结构单元构件的安全余量的表达形式。在此基础上引入随机有限元法，对该桁架系统进行结构可靠性初探研究。最后由算例说明方法的有效性。
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| 关 键 词： | 固体力学 多随机参数 压电桁架结构 机电耦合 随机有限元法 结构可靠性 |
| 文章编号： | 1000-1093（2006）02-0320-05 |
| 收稿时间： | 2005-09-01 |
| 修稿时间： | 2005-09-01 |
Study on Reliability of Piezoelectric Truss Structure with Multi-random Parameters |
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| YANG Duo-he,AN Wei-guang,WANG Bin-sheng,MIAO Han.Study on Reliability of Piezoelectric Truss Structure with Multi-random Parameters[J].Acta Armamentarii,2006,27(2):320-324. |
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| Authors: | YANG Duo-he AN Wei-guang WANG Bin-sheng MIAO Han |
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| Affiliation: | Department of Aerospace Engineering, Harbin Engineering University, Harbin 150001, Heilongjiang, China |
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| Abstract: | In the piezoelectric truss structure with multi-random parameters, taking the mechanical-electric coupling effect into account under electric load and mechanical load, the formulas of safety margins of bar were proposed by using the intensity of breaking, disruptive electric field intensity, bar section area and loads as stochastic variables. On the base of above research, stochastic finite element method was adopted to attempt to analyse reliability of the piezoelectric truss Structure. In the end, the example is given to demonstrate the efficiency of this method, |
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| Keywords: | solid mechanics multi-random parameters piezoelectric truss structure mechanical-electric coupling stochastic finite element structure reliability |
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