In order to accelerate the attenuation of the vibration of the frame and body to improve the ride comfort (comfort) of the car, the shock absorber is equipped with a shock absorber inside the suspension system of most cars.
The shock absorber of a car is also called "suspension", which is composed of a spring and a shock absorber. The shock absorber is not used to support the weight of the car body, but to suppress the shock when the spring rebounds after absorbing the shock and absorb the energy of the road impact. The spring plays the role of alleviating the impact, changing the "high energy one impact" into "small energy multiple impacts", while the shock absorber gradually reduces the "small energy multiple impacts".
If you have driven a car with a broken shock absorber, you can experience the bouncing of the aftermath of the car going through every pothole and ups and downs, and the shock absorber is used to suppress this kind of bouncing. Without a shock absorber, the rebound of the spring cannot be controlled. When the car encounters a rough road, it will have a serious bounce. When cornering, the tire's grip and tracking will be lost due to the vibration of the spring.