Definition of interaction force between car wheel and rough road while driving

For the calculation of indicators of operational properties of a car moving on a rough road, in most cases it is necessary to know the support reactions on the wheels of the vehicle and changing depending on mode of motion. In this connection, there arises an interest in determining strength of the central plane of rotation of the car wheel while driving over uneven at different speeds its movement. A mathematical model for definition of force in the central plane of rotation wheel at uniform rectilinear movements of the car on the support surface with single sinusoidal roughness, was developed. Parameters of mass and geometric parameters of the car and asperity, elastic and dissipative properties of the suspension and tires are taken into account. Results of investigation of interaction of car wheel and single sinusoidal roughness at uniform rectilinear movements Renault 15TS with different speeds, was presented. The plots to assess the influence of vehicle speed on rough roads on the strength of interaction force between car wheel and rough road are presented.