【摘要】 根据昆虫扑翼飞行的原理,设计了一种基于昆虫胸腔式结构的静电驱动微扑翼机构。根据驱动机构的物理模型建立了机电耦合系统的非线性动力学模型,应用数值方法研究了系统在常值电压激励下的动态响应;在相空间中分析了系统的非线性动态特性,研究了阻尼和初值对系统动态特性的影响;讨论了系统在正弦激励电压信号下的响应。研究结论对微扑翼驱动机构的设计、制作和应用提供了一定的理论依据,对于其他静电驱动的微机电系统亦有一定的参考价值。更多还原

【Abstract】 This paper studied a micro flapping mechanism that was based upon insect thorax and actuated by electrostatic force according to the flapping flying theory of insects. Firstly, nonlinear dynamic model of the electromechanical coupling system was set up according to physical model of the flapping mechanism. The dynamic response of the system in constant voltage was studied by numerical method. Then the effects of damping and initial condition on system dynamic characteristics were analyzed in phase space. In addition,dynamic responses of the system in sine voltage excitation were discussed. The research results are helpful to the design, fabrication and application of the micro flapping mechanism of flapping-wing micro air vehicle(FMAV), and also to other micro electromechanical system that actuated by electrostatic force.更多还原