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

fYear

2009

fDate

26-28 Dec. 2009

Firstpage

3752

Lastpage

3755

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 PoincareÂ¿ 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;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Science and Engineering (ICISE), 2009 1st International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-4909-5

Type

conf

DOI

10.1109/ICISE.2009.387

Filename

5455765