From the name of shock absorber, it seems that the vibration of vehicles is mainly absorbed by shock absorber, but in fact it is not. The energy generated by the vibration of vehicles passing through uneven roads is mainly absorbed by springs, which can also produce rebound vibration after absorbing vibration. At this time, shock absorbers are used to alleviate the vibration caused by springs.

When the shock absorber fails, the bouncing energy of the shock absorber spring will not cause the car body bouncing on the road, which will affect the driving stability and comfort. Simply put, the main purpose of shock absorber is to restrain spring bouncing and quickly eliminate body bouncing.

We usually refer to the vehicle vibration and hard and soft, which means the damping force, the greater the force, the harder the shock absorber. If the shock absorber is too soft and no spring can absorb vibration quickly, the body will jump up and down between the tire and the ground, the adhesion is not good, but the comfort of the car will be better, the general family car tends to use the soft shock absorber; if too hard, it will bring too much weight. Resistance springs prevent cushioning, but the adhesion between tires and the ground is better, so some sports cars or SUVs have very hard damping.