湖南大学学报（自然科学版）2016，Vol.43Issue(8)：57-62,6.
具损伤压电层合微梁的坍塌特性研究
Study on the Pull-in Characteristics of Piezoelectric Laminated Micro-beam with Damage
摘要
Abstract
The nonlinear pull-in behavior of piezoelectric laminated micro-beam was studied with con-sideration of the size effect and damage effect.Based on the theories of continuum mechanics and Euler-Bernoulli beam hypothesis,the nonlinear governing equation of piezoelectric laminated micro-beam with damage was established and solved in Galerkin method and Runge-Kutta method.The influence of various parameters on the pull-in voltage of the micro-beam was discussed,and the results have shown that the ge-ometry nonlinearity can improve the value of critical pull-in voltage of the micro-beam;the changes of gov-erning voltage,micro-beam length and other parameters have influences on the critical pull-in voltage of the micro-beam.Besides,the FEM software was used to carry out the check-up calculations,and the re-sults were compared with the theoretical results.The findings of this research can offer guidance to the de-sign of micro-structures.关键词
压电效应/层合微梁/损伤效应/尺寸效应/坍塌Key words
miezoelectric effect/laminated micro-beam/damage effect/size effect/pull-in分类
数理科学引用本文复制引用
陈昌萍,李良中,胡海涛,钱长照,洪力..具损伤压电层合微梁的坍塌特性研究[J].湖南大学学报（自然科学版）,2016,43(8):57-62,6.基金项目
国家自然科学基金资助项目（11272270），National Natural Science Foundation of China （）
