Research On The Dynamics Performance Of Flapping-wing Air Vehicle Transmission Mechanism

Flapping-wing micro air vehicle(FWMAV)is a kind of aircraft that mimic the flying wing creature.It has the advantage of good concealment and maneuverability,making it widely used in civil and military fields.The transmission mechanism is the key component of the FWMAV,and its performance determines the flight performance of the aircraft.In this paper,the transmission mechanism of the FWMAV is studied,the transmission mechanism is optimized and its dynamic performance is analyzed.Firstly,the existing FWMAVs are classified,and the scale law of the existing FWMAV are summarized and compared with the scale law of the same flying creature.In order to optimize the FWMAV’s transmission mechanism,a new scheme is proposed to improve the symmetry of the mechanism.The numerical method is used to analyze the advantages of the transmission mechanism in improving the symmetry,and the formula of the length of the mechanism is given.Then establish the kinematic model of flapping wing,simplify the wing as rigid body thin-walled plate,decompose the wings movement into two separate processes of translation and rotation,simulate and analyze the movement of wings.On the basis of this,the dynamic problems of the transmission mechanism of the FWMAV is analyzed,compare the power consumption before and after install spring,the advantage of spring in reducing the input power peak is studied from the perspective of energy transfer.Finally,in order to extend the flight time of FWMAV,proposed the idea of use solar panels to make FWMAV’s wings,the solar panels collect energy to provide auxiliary energy for FWMAV flight during the flight,through the theoretical calculation to verify the feasibility.