压电驱动器应变传递模型分析
THE MODEL ANALYSIS OF STRAIN TRANSFER IN THE APPLICATION OF PIEZOELECTRIC ACTUATORS
查看参考文献14篇
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文摘
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随着压电材料结构在航空航天结构控制领域的广泛应用, 压电驱动器与主体结构间的应变传递问题的研究日益重要. 该文首先对压电驱动器应用中的应变传递模型----均匀应变模型与Bernoulli-Euler模型进行了优缺点的分析对比; 其次将Bernoulli-Euler模型用于考虑胶层影响情况, 考虑到压电驱动器在航空航天领域的应用, 着重类似于翼面结构的模型分析, 得到了实际应用中压电驱动器沿结构厚度方向的应变传递表达式; 最后通过数值计算的方法确定了所得应变表达式适用的胶粘剂弹性模量及厚度的范围. 结果表明此表达式的有效性, 使 Bernoulli-Euler模型的应用更接近于实际情况, 同时为智能结构实际应变分布的分析提供了一定的依据与基础 |
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其他语种文摘
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The structure of piezoelectric materials has been more and more popularly used in aviation and aerospace industry, the study for the strain transfer between piezoelectric actuators and a host structure is increasingly important. Advantages and disadvantages in the models of strain transfer--Uniform Strain Model and Bernoulli-Euler Model were firstly discussed;secondly the finite thickness of the bonding layers was taken into account in a Bernoulli-Euler Model, focusing on the wing-like model analysis due to the application of piezoelectric actuators in aviation and aerospace industry, and the strain transfer formulation along the thickness of the structure was attained;finally the range of bonding layers elasticity modulus and thickness for the formulation was given by the finite element method. The result demonstrated the efficiency of the formulation, and the application of the Bernoulli-Euler Model was much closer to the actual case,at the same time the reasonable base was provided for the analysis of strain distribution in a smart structure during an actual application |
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来源
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工程力学
,2010,27(8):205-210 【核心库】
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关键词
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智能材料
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压电驱动器
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应变传递
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胶粘层
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均匀应变模型
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Bernoulli-Euler模型
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地址
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1.
北京航空航天大学航空科学与工程学院, 北京, 100191
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中国科学院力学研究所工程科学部, 北京, 100080
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-4750 |
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学科
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一般工业技术;航空 |
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基金
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国家自然科学基金项目
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文献收藏号
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CSCD:3976052
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