Impact Dynamics of a Dragonfly Wing

作     者：Lihua Wang Wenjing Ye Yueting Zhou 

作者机构：School of Aerospace Engineering and Applied MechanicsTongji UniversityShanghaiChina. 

出 版 物：《Computer Modeling in Engineering & Sciences》 (工程与科学中的计算机建模（英文）)

年 卷 期：2020年第122卷第3期

页      面：889-906页

核心收录：

学科分类：08[工学] 0825[工学-航空宇航科学与技术] 

基　　金：National Natural Science Foundation of China(Project No.11972261,11572229) Fundamental Research Funds for the Central Universities(Project No.22120180063) 

主　　题：Impact dynamics wing deformation thin plate model lift force. 

摘      要：The lift force was reported not to be high enough to support the dragonfly’s weight during flight in some conventional investigations,and higher lift force is required for its *** this study,by employing a thin plate model,impact effect is investigated for the wing deformation in dragonfly flapping during *** static displacement is formulated to compare with the dynamical displacement caused by *** governing equation of motion for the impact dynamics of a dragonfly wing is derived based on Newton’s second *** of variables technique and assumed modes method are introduced to solve the resulting ***,lift force is presented for the cases of considering and without considering the impact on the wing flapping which indicates that the impact has prominent effects for the dragonfly’s aerodynamic *** simulations demonstrate that considering the impact effect on the wing flapping can increase the wing deformation,which results in the rise of the lift *** enhanced lift force is of critical importance for the dragonfly’s takeoff.