Abstract: A shock absorber for damping the vibrations of the car by friction between two solid materials. The first solid material is the square aluminum cylinder and the second consists of two aluminum links. The two links are hinged at one end by the rod and pushed at the other end against the cylinder by a spring. This arrangement will help selecting the pulling force and the pushing force as required and within reasonable values.

Abstract: A vehicle suspension system (110) having a primary suspension system (112) and a secondary suspension system (114). Vertical motion of a vehicle wheel (120) places a force on the vehicle frame (126) which, in turn, places a force on the vehicle body (124). The secondary suspension system (114) translates the relative motion between the wheel (120) and frame (126) into a force on the vehicle body (124) which is equal and opposite to the force transmitted from the frame (126) to the body (124). A frictional shock absorber (300) is utilized in the suspension system (110) as well as a multi-stage coil spring (400).