Modeling and validation of 7-DOF ride model for heavy vehicle

This paper presents the modeling and validation of a 7-degree of freedom (DOF) full vehicle model to study ride performance of a heavy vehicle. To improve suspension control system that can reduce roll over effect and improve ride comfort, dynamic modeling of passive heavy vehicle model was constructed. Such simulation model was developed in MATLAB Simulink software. Several assumptions related to 7-degree of freedom modeling were made and stated in this paper. This heavy vehicle model was validated using vehicle dynamics simulation software known as TruckSim. The validation was done by comparing the simulation results. A ride test was conducted at two different speeds, and the simulation results consist of roll angle, pitch angle, and vehicle body displacement are analyzed. Keywords—Heavy vehicle, MATLAB/Simulink, Ride Model, Validation Model

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