建立两自由度PZT微扑翼驱动机构模型和动力学模型,结合主动控制构造一个负库仑摩擦型自激励振动系统,并研究其在不同参数下系统的响应,同时构造出交叉反馈控制以获得第一阶模态的响应,并和基于范德波尔自激励系统比较,研究表明正交反馈负库仑摩擦型自激励系统更具有优越性,为微扑翼驱动机构设计提供新思路。
Buliding the FMAV's actuator model and dynamic model, based on 2-DOF PZT actuator, and a NCF(Negative Coulomb Friction) type self-exited vibratory system was constructed by active control. Research the system response, though changing the parameter of system. At the same time, In order to get the first mode response, we construct the cross feedback control, and compared with VDP(Vander Pol) type self-exited vibratory system.The study demonstrates that the cross feedback-NCF type self-exited vibratory system has advantage to VDP. And, show the new way to design the FMAV actuator.