Size Optimization for Fast Response of Multilayer Parallel Piezoelectric Actuator
Piezoelectric actuator is widely used in phase adjustment of satellite antenna,but it was easy to cause transient and residual vibration after loading voltage,which affects the stability and control accuracy of the system.Aiming at the problem of vibration suppression of piezoelectric structure in the process of dynamic shape active control,the transient response of multi-layer parallel piezoelectric bimorph actuator under step excitation was simulated and analyzed.The influence of key parameters such as intermediate layer material and structure size on the response speed of the actuator was studied,and the optimal design scheme of fast response of piezoelectric bimorph actuator was proposed.The numerical results show that the designed piezoelectric actuator has a fast response speed with a large output displacement.The research in this paper can provide theoretical basis and technical support for the rapid response structure design of piezoelectric bimorph actuators for active control of antenna surface.
国家科技期刊平台
NSTL
万方数据
维普
