Title :
Chaotic Behaviors of Half Car Model Excited by the Road Surface Profile
Author :
Wu Can ; Wang Weirui
Author_Institution :
Inst. of Mech. Design, Zhejiang Univ., Hangzhou, China
Abstract :
A research on the motion stability of nonlinear vehicle suspension system with four degrees of freedom is proposed, under the conditions that forced vibration of road surface profile with single frequency excitation. According to the characteristics of magneto-rheological fluid damper, the software of Matlab is implemented to fit the Sigmoid model, and then deduces 1/2 suspension models. The frequency response characteristics of the model are analyzed subsequently. The vibration statuses of these systems with different excitations are finally illustrated by Poincare¿ diagram and bifurcate diagram, which are gained by using Runge-Kutta method.
Keywords :
Poincare mapping; Runge-Kutta methods; chaos; magnetorheology; shock absorbers; suspensions (mechanical components); vehicle dynamics; vibrations; Matlab software; Poincare diagram; Runge-Kutta method; bifurcate diagram; chaotic behaviors; forced vibration; half car model; magneto-rheological fluid damper; nonlinear vehicle suspension system; road surface profile; Chaos; Damping; Frequency response; Magnetic analysis; Magnetic levitation; Mathematical model; Road vehicles; Shock absorbers; Stability; Surface fitting;
Conference_Titel :
Information Science and Engineering (ICISE), 2009 1st International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-4909-5
DOI :
10.1109/ICISE.2009.387
