Abstract
This paper descirbes the stability performance of articulated-vehicles by considering the effect of fifth wheel's rigs wear which is king-pin and jaw of plates. This wear makes gap between king-pin and jaw. add up to be transfer lag of force. It has influence on vehicle stability. By an analysis of a driver-vehicle system with 4 DOF vehicle dynamic model and multi-body dynamics modeler, DADS, is used to build the dynamic model of articulated-vehicles by considering the effect of fifth wheel coupling. The target articulated-vehicle consists of tractor-frame, leaf-suspension, steering-system, axle, coupler, cabin, trailer-frame, axle, cargo, and running wheel. 84rigid bodies including sprung mass are used for the vehicle modelling.
