The shock absorber is mainly used to suppress the shock and the impact from the road surface when the spring rebounds after absorbing the shock. When passing on uneven roads, although the shock-absorbing spring can filter the vibration of the road, the spring itself will reciprocate, and the shock absorber is used to suppress the jump of this spring.
Principles of Automobile Shock Absorption
1. In the compression stroke, the axle and the frame are close to each other, and the damping force of the shock absorber is small, so as to give full play to the elastic effect of the elastic element and alleviate the impact. At this time, the elastic element plays the main role;
2. During the extension stroke of the suspension, the axle and the frame are far away from each other, and the damping force of the shock absorber should be large to reduce vibration quickly;
3. When the relative speed between the axle or the wheel and the axle is too high, the shock absorber is required to automatically increase the fluid flow, so that the damping force is always kept within a certain limit to avoid excessive impact load.