电磁振动式微扑翼飞行器动态特性研究

电磁驱动具有驱动电压低、作用力大等优点, 是微机械领域一种重要驱动方式。本文设计了一种电磁振动式微扑翼飞行器，在此基础上，建立了电磁振动式微扑翼飞行器非线性动力学模型，研究了不同电磁力激励下系统动态特性，获得了系统固有频率，并得出方波和正弦半波电磁力驱动能够产生较大扑动幅度的结论。最后，研究了电磁振动式微扑翼飞行器机-磁耦合非线性系统动态特性，研究结果表明电磁振动式微扑翼飞行器适合采用正弦半波电压激励，而且通过结构改进措施，提高了扑动的对称性和稳定性。

Design of the Electromagnetic Vibratory Mechanism for FMAV and the Research on Its Dynamics

This paper designs an electromagnetic vibratory mechanism for Flapping-wing Micro Air Vehicle(FMAV),and presents its nonlinear dynamic model.Dynamic responses of the electromagnetic vibratory mechanism with different electromagnetic energizing force signals are investigated,its inherent frequency is obtained,and the conclusion that square wave and sine half-wave electromagnetic forces will generate large flapping amplitude is drawn.Finally,mechanics-magnetic coupling dynamic characteristics of the electromagnetic vibratory mechanism for FMAV are discussed.And the result shows that sine half-wave voltage is an appropriate energizing signal,and the flapping symmetry and stability can be increased if the structure is improved.