摘要
建立四分压电陶瓷管的动力学方程,研究了四分压电陶瓷管在伸长和弯曲时的边界条件。用有限元分析软件ANSYS对四分压电陶瓷管进行模态分析,得出该陶瓷管的前12阶谐振频率和模态振型。进行了瞬态动力学分析,分别用锯齿波和阶跃波驱动压电陶瓷管并得出压电陶瓷管的位移曲线和振子应力图,验证了所建方程的正确性。
The kinetic equation of piezoelectricity tube is build and the boundary conditions are studied at exten- sion and bending of the tube. Using the ANSYS software of finite element, modal analysis is executed and twelve steps harmonic frequency are obtained. Transient dynamics analysis is proceed, saw tooth wave and step wave are individual applied on piezoelectricity tube, and then displacement curves of the tube are derived as well as the stress chart of the oscillator. The equation validity is confirmed.
出处
《压电与声光》
CSCD
北大核心
2007年第1期122-124,共3页
Piezoelectrics & Acoustooptics
基金
国家"八六三"计划基金资助项目(2003AA404190)
关键词
动力学
有限元
仿真
dynamics
finite element experiment
simulation
