Finite element analysis and experiment research on piezoelectric bimorph cantilevers
Piezoelectric bimorphs are the oldest form of basic piezoelectric adaptive structures.It has been Widely investigated as sensors and actuators for the applications of various wobbling mechanisms.In this paper,the deformation of bimorph cantilever is analyzed using the finite element method (FEM).The influence of the middle elastic beam and the piezoelectric layer on the deflection actuator is studied.The correlation of the applied voltage,elastic modulus of the beam and thickness of piezoelectric layer are analyzed quantitatively,that provides a theoretical basis and design method for the bimorph actuators.The mechanical force deriving from the bimorph deformation is also studied.Furthermore,experiments are carried to validate the finite element model.As a result,the piezoelectric bimorph model used in this paper is feasible and effective.These numerical and experimental results are useful to design and optimize the piezoelectric bimorph.
piezoelectric bimorph finite element method PZT deflection
Junfei Wu Xiangcheng Chu Ye Ji Longtu Li
State Key Laboratory of New Ceramics and Fine Processing,Department of Materials Science and Enginee State Key Laboratory of New Ceramics and Fine Processing,Department of Materials Science and Enginee
国际会议
南京
英文
114-119
2007-09-09（万方平台首次上网日期，不代表论文的发表时间）