Nonlinear Behavior Analysis of A Flapping-wing Mechanism with Clearance Joint
The nonlinear behavior of a flapping-wing mechanism affected by revolute joint clearance is studied in this work.Considering the axial dimension of bearing,energy dissipation and the nonlinear power exponent from material,the nonlinear stiffness coefficient and an improved contact dynamic model in the joint clearance is established.A flapping-wing mechanism dynamic model with joint clearance is also established.Then embed the contact dynamic model and system dynamic model into the mechanical system simulation software package.From large numbers simulations performed,and the analysis of journal trajectories and Poincare maps under the different clearance sizes,it can be concluded that flapping-wing mechanism with joint clearance exhibit a chaotic response,and the more clearance size,the more obvious chaotic behavior.
flapping-wing mechanism clearance joint contact force nonlinear behavior
Wang Xu-peng Liu Geng
School of Mechanical Engineering, Northwestern Polytechnical University, Xian, China-710077 School of Mechanical Engineering, Northwestern Polytechnical University, Xian, China
国际会议
重庆
英文
107-114
2015-03-21（万方平台首次上网日期，不代表论文的发表时间）