Modeling and Simulation of Tracked Vehicles Suspension

Document Type : Original Article

Author

Egyptian Armed Forces.

Abstract

Abstract: Preserving drive smoothness is one of the basic requirements imposed on tracked vehicles operation. Drive smoothness that depends on design and quality of vehicle suspension is accomplished by minimum vibration of vehicle hull during drive. The excessive vibration arises particularly at high vehicle speed can harm the operation of vehicle crew and stability of vehicle equipment. In the present paper, a full vehicle model is developed with the objective of modeling suspension system dynamic response. The vehicle model involving few degrees of freedom is applied for Armored Personnel Carrier M113 where is Lagrangian principle is used. A computer simulating model for the vehicle suspension is developed in order to evaluate the response of vehicle hull oscillation due to different excitations resulting from movement over irregular roads and due to different vehicle speed. A parametric investigation was carried out using the validated model in order to study the effect of suspension parameters, like suspension stiffness and shock absorber damping coefficient, on vehicle vibrational performance.

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