semi trailer parts German type mechanical suspension

The car suspension is a device that elastically connects the frame and the axle in the car. It is generally composed of elastic elements, guiding mechanisms, shock absorbers and other components, and its main task is to alleviate the impact transmitted to the frame by the uneven road to improve the comfort of riding.
Suspension is an important assembly in a car, which elastically links the frame and the wheels, and is related to the various performance of the car. From the outside, the car suspension is a car assembly that is difficult to meet the perfect requirements, because the suspension must meet both the comfort requirements of the car and the requirements of its handling stability, and these two It is only composed of some rods, cylinders and springs, but don't think it is very simple, on the contrary, it is opposite to each other. For example, in order to achieve good comfort, it is necessary to greatly buffer the vibration of the car, so the spring should be designed to be softer, but the soft spring is easy to cause the car to brake "nodding", accelerate "head up" and seriously roll left and right. It is not conducive to the steering of the car, and it is easy to cause the car to be unstable.