In order to accelerate the attenuation of frame and body vibrations to improve the driving smoothness (comfort) of the car, shock absorbers are installed inside the suspension system of most cars.

The shock absorption system of a car is composed of springs and shock absorbers. The shock absorber is not used to support the weight of the body, but to suppress the shock when the spring absorbs the shock and rebounds and absorbs the energy of the road impact. The spring plays the role of easing the impact, changing the "large energy multiple impact" into "small energy multiple impact", and the shock absorber is to gradually reduce the "small energy multiple impact". If you've ever driven a car with a broken damper, you can feel the bouncing of the car through every pothole, the aftermath of ups and downs, and the shock absorber is used to suppress this bounce. Without the shock absorber, the spring will not be able to control the rebound, the car will have a serious bounce when encountering rough roads, and when cornering, it will also cause the loss of tire grip and traction due to the oscillation of the spring up and down.