Dynamic modeling and control of off-road truck using bondgraphs

Abstract

The truck vibration problems have increase in recent years due to the rapid industrlization and demand for the modern machines and product to transfer from one place to the other. Several current design trends resulted in longer wheel base that are more susceptible to vibration related problems. Vibration in modern off-road road trucks can affect driver comfort, cargo safety, equipment wear and productivity. This work presents the modeling of off road truck using bondgraphs. The vehicle system is comprised of cab, cargo, base frame, suspension system and pneumatic tires. In this work, dynamic behavior of the truck has been presented using bondgraphs, which include the wheel/tires, axle/suspension and frame of the vehicle. The vehicle is modeled with the integration of rigid bodies that are allowed to move the dimensional space subject to forces and moments. This works also incorporating proportional control in the suspension system of truck. This control system applied to the suspension of truck will reduce the amplitude of vibration. © 2012 Springer India Pvt. Ltd.