【摘要】 本文研究了具有滞后非线性的汽车悬架在路面拟周期激励作用下发生受迫振动时的混沌运动。首先用Melnikov方法给出了发生混沌运动的临界条件 ,然后研究了非线性阻尼力中的各系数对混沌的影响 ,最后通过Poincare截面及Lyapunov指数揭示出在此系统中存在着从拟周期运动通向混沌运动的可能性。更多还原

【Abstract】 The investigation of chaotic motion in a vehicle suspension system with hysteretic nonlinearity,which is subjected to quasi-periodic excitation by road surface is presented in the paper.The Melnikov’s function is used to derive the critical condition for chaotic motion,and then the effects of nonlinear damping parameters on chaotic motion are investigated.The path from quasi-periodic to chaotic motion is found via Poincare section and Lyapunov exponents.更多还原