| 压电桁架结构的稳定性及有限元分析方法 |
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| 引用本文： | 赵国忠,顾元宪. 压电桁架结构的稳定性及有限元分析方法[J]. 应用力学学报, 2002, 19(1): 127-130 |
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| 作者姓名： | 赵国忠 顾元宪 |
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| 作者单位： | 大连理工大学,大连,116024 |
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| 基金项目： | 国家重点基础研究专项经费资助 (G19990 32 80 5 ) |
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| 摘 要： | 从力的平衡方程出发，考虑机电耦合效应，推导了含压电材料的桁架结构稳定性有限元方程。通过数值算例分析表明，机电耦合效应对桁架结构的稳定性影响较在，而电压对结构稳定性的影响相对较小，压电杆的优化布置能够有效地提高结构稳定性。
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| 关 键 词： | 压电桁架结构 稳定性 有限元分析方法 机电耦合 智能结构 |
| 文章编号： | 1000-4939(2002)01-0127-04 |
| 修稿时间： | 2000-07-20 |
The Buckling Stability and Finite Element Analysis Method of Piezoelectric Trusses |
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| Zhao Guozhong Gu Yuanxian. The Buckling Stability and Finite Element Analysis Method of Piezoelectric Trusses[J]. Chinese Journal of Applied Mechanics, 2002, 19(1): 127-130 |
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| Authors: | Zhao Guozhong Gu Yuanxian |
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| Abstract: | Considering mechanical electric coupling effect,the paper derived the piezoelastic finite element equations of buckling analysis for piezoelec trictruss structures from the basis equilibriume quation.Numerical calculation results given in the paper have shown that the mechanical electric coupling effect can increase the buckling stability of piezoelec trictrusses noticeably,but the external voltage can only affect the buckling charac teristics slightly.The optimum distribution of the piezoelectric bars can improve buckling characteristics of truss structures effectively. |
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| Keywords: | Mechanical electric coupling Piezoeletric truss Buckling Finite element. |
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