压电弯曲元的夹层梁解析模型

周燕国; 陈云敏; 丁皓江

压电弯曲元的夹层梁解析模型

浙江大学软弱土与环境土工教育部重点实验室,杭州 310027

基金项目: 国家自然科学基金资助项目(10472102);国家973计划资助项目(2007CB714200)

详细信息

作者简介:
周燕国(1978- ),男,浙江富阳人,博士;陈云敏,教授(联系人.Tel:+86-571-87951340;Fax:+86-571-87952165;E-mail:chenyunmin@zju.edu.cn).

中图分类号: O343.1
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出版历程
- 收稿日期: 2007-04-16
- 修回日期: 2007-10-28
- 刊出日期: 2007-12-15

Analytical Modeling of Sandwich Beam for Piezoelectric Bender Elements

Key Laboratory of Soft Soils and Geoenvironmental Engineering, Ministry of Education, Zhejiang Unversity, Hangzhou 310027, P. R. China

摘要

摘要: 压电弯曲元是一类传感和作动器件，已得到广泛的应用．基于一阶剪切变形理论发展了压电弯曲元夹层梁解析模型，对梁截面采用统一转角并将耦合电势沿厚度的分布假设为二次函数，进一步修正了横向剪应变对电位移的影响．以弯曲元简支梁自由振动为例进行数值分析，解析模型解与二维精确解相比具有良好的精度，为分析弯曲元动力机电响应提供了良好的解析模型．
- 弯曲元 /
- 压电 /
- 夹层梁 /
- 剪切系数 /
- 解析模型
Abstract: Piezoelectric bender elements are widely used as electromechanical sensors and actuators. An analytical sandwich beam model for piezoelectric bender elements was developed based on the first-order shear deformation theory (FSDT), which assumes a single rotation angle for the whole cross-section and a quadratic distribution function for coupled electric potential in piezoelectric layers, and corrects the effect of transverse shear strain on the electric displacement integration. Free vibration analysis of simply-supported bender elements was carried out and the numerical results showed that solutions of the present model for various thickness-to-length ratios compare well with the exact two-dimensional solutions, which presents an efficient and accurate model for analyzing dynamic electromechanical responses of bender elements.
- bender elements /
- piezoelectric /
- sandwich beam /
- shear correction factor /
- analytical model

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参考文献(16)

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压电弯曲元的夹层梁解析模型

作者简介:
周燕国(1978- ),男,浙江富阳人,博士;陈云敏,教授(联系人.Tel:+86-571-87951340;Fax:+86-571-87952165;E-mail:chenyunmin@zju.edu.cn).

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Analytical Modeling of Sandwich Beam for Piezoelectric Bender Elements

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压电弯曲元的夹层梁解析模型

作者简介: 周燕国(1978- ),男,浙江富阳人,博士;陈云敏,教授(联系人.Tel:+86-571-87951340;Fax:+86-571-87952165;E-mail:chenyunmin@zju.edu.cn).

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出版历程

Analytical Modeling of Sandwich Beam for Piezoelectric Bender Elements

计量

出版历程

目录

作者简介:
周燕国(1978- ),男,浙江富阳人,博士;陈云敏,教授(联系人.Tel:+86-571-87951340;Fax:+86-571-87952165;E-mail:chenyunmin@zju.edu.cn).