Title :
Study on dynamics of rear-axle suspension of a vehicle
Author :
Wanxiang, Li ; Yingui, Cheng
Author_Institution :
Sch. of Mechatron. Eng., Lanzhou Jiaotong Univ., Lanzhou
Abstract :
The dynamics of mechanical systems with clearance and constraint is an important field in vibration engineering. A one-degree-of-freedom piecewise-linear model for a rear-axle suspension is considered in this paper. Motion differential equation of the system having a non-linear elastic constraint is derived and the related Poincaremap is established numerically. Bifurcations and chaos of the system are investigated by numerical simulations and analytical method. The routes to chaos through quasi-periodic and period-doubling bifurcation are discussed respectively. Besides, some other non-typical routes to chaos in the suspension system have founded. The obtained result can be used in chaos prediction and chaotic control. It is helpful to optimize the parameters of practical suspension system by investigation of its bifurcation and chaos.
Keywords :
Poincare mapping; bifurcation; chaos; differential equations; suspensions (mechanical components); vehicle dynamics; vibrations; Poincare map; bifurcations; chaos; differential equation; mechanical systems dynamics; non-linear elastic constraint; numerical simulations; one-degree-of-freedom piecewise-linear model; rear-axle suspension dynamics; vehicle suspension dynamics; vibration engineering; Automotive engineering; Bifurcation; Chaos; Differential equations; Mechanical systems; Nonlinear dynamical systems; Piecewise linear techniques; Vehicle dynamics; Vehicles; Vibrations; Poincaré map; bifurcation; chaos; periodic motion;
Conference_Titel :
Vehicle Power and Propulsion Conference, 2008. VPPC '08. IEEE
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-1848-0
Electronic_ISBN :
978-1-4244-1849-7
DOI :
10.1109/VPPC.2008.4677696
