| 热压电桁架结构灵敏度分析及其优化 |
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| 引用本文： | 王剑,王悦东,兆文忠.热压电桁架结构灵敏度分析及其优化[J].大连铁道学院学报,2011(1):34-38. |
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| 作者姓名： | 王剑 王悦东 兆文忠 |
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| 作者单位： | 大连交通大学交通运输工程学院; |
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| 基金项目： | 辽宁省高校创新团队支持计划资助项目(2008T018) |
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| 摘 要： | 在综合考虑温度场、机械场和电场作用的前提下,建立了热压电桁架结构的有限元模型,对结构进行了稳定性分析,推导了关于热压电桁架结构的灵敏度公式,构建了基于灵敏度分析的优化模型,对不同约束条件限制的情况,分别进行了优化设计.算例显示,合理利用热压电效应,可以提高结构的工作性能,并使结构趋于更经济、合理.
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| 关 键 词： | 热压电 桁架结构 灵敏度分析 优化设计 |
Sensitivity Analysis and Optimization of Thermal Piezoelectric Truss Structures |
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| WANG Jian,WANG Yue-dong,ZHAO Wen-zhong.Sensitivity Analysis and Optimization of Thermal Piezoelectric Truss Structures[J].Journal of Dalian Railway Institute,2011(1):34-38. |
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| Authors: | WANG Jian WANG Yue-dong ZHAO Wen-zhong |
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| Institution: | WANG Jian,WANG Yue-dong,ZHAO Wen-zhong(School of Traffic and Transportation Engineering,Dalian Jiaotong University,Dalian 116028,China) |
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| Abstract: | Considering thermal-mechanical-electrical coupling effect,the thermal-piezoelectric finite element equation of the static and buckling analysis are derived for truss structure from the basic equilibrium equation,and sensitivity analysis based optimization model is constructed according to finite element formulation.Numerical results show that the multi-field coupling effect has a significant influence on the shape and stability of the thermal-piezoelectric truss structure.Utilizing the coupling effect ratio... |
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| Keywords: | thermal-piezoelectricity truss structure sensitivity analysis optimization design |
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