2023 Volume 85 Issue 2 Pages 89-96
Simulations were conducted adopting planar motion analysis to clarify the mechanism of Jack-knifing, which is a behavior to articulated vehicles. An articulated vehicle was modeled with a Three-wheel vehicle model, the dynamic characteristics of the hitch angle with respect to the steering angle of the front wheels were derived in numerical analysis, and the stability was investigated for changes in the front-wheel steering angle, initial vehicle speed, traction coefficient, and trailer mass. Pole-zero maps and frequency responses were obtained for analysis of the stability of the articulated vehicle. An increase in the trailer mass causes the poles of the system to approach the origin, which deteriorates stability. And an increase in vehicle speed also deteriorates stability, but the vibration decreases.
