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Abstract
Drive axle housing has the function of supporting the entire weight of the car and bearing the loads form wheel interaction with the load. Vehicle often work in the bad roads, so axle housing sheel is subjected to the continuously variable loads with a large amplitude. When the vehicle moves on different road or when the wheel encountered different surface roughness appears the dynamic load on the active axle house effect the durability of the axle house and other vehicle details. This paper presents the survey results effect of stiffness and damping coefficient suspension system to dynamic load acting axle housing 1.25 ton truck when the vehicle has passed the bumpy format. The research results underlie suggest select the basis to reduce the dynamic load acting the axle house.