What Is the Function of the Rear Shock Absorber in a Car?

Automobile rear shock absorbers are mainly used to suppress the oscillations caused by the rebound of the spring after absorbing shocks and the impact from the road surface.

Simple methods to judge if the rear shock absorber of a car is broken

• Press down on the trunk with your hand and release it. If the vehicle stops within 3 vibration cycles, it is considered normal. Otherwise, it is suggested to check;

• Lift the vehicle and check the appearance of the shock absorber. If there is obvious oil stain (generally exceeds half the total length), it is recommended to consult the maintenance personnel for replacement;
  

• Note: it is necessary to distinguish between oil stain and water stain. If the shock absorber has no problem, it is not recommended to replace it. The original shock absorber has been calibrated and matched, and the states of different factories may have slight impacts on the stability and handling performance of the vehicle.
  

The function of the shock absorber is to reduce the impact from the road surface, rapidly absorb the vibration caused by bumps, and restore the vehicle to normal driving state. Once the shock absorber is damaged, specific situations must be analyzed. If it fails to function properly, failure to dampen the shock will result in increased vehicle vibration frequency. Leakage of oil or gas may result in a clunking noise when the vehicle passes through pits, and a lack of buffering sensation.

The function of the rear shock absorber of a car

The shock absorber is mainly used to suppress the oscillations caused by the rebound of the spring after absorbing shocks and the impact from the road surface. When passing through an uneven road surface, although the shock absorbing spring can filter out the vibration of the road surface, the spring itself will still have reciprocating motion, and the shock absorber is used to suppress this spring jump.

The shock absorber is not used to support the weight of the vehicle, but to suppress the oscillation of the spring after absorbing shocks and absorb the energy of the road surface shock. The spring plays a role in cushioning the impact, transforming the "major energy impact" into "minor energy multiple impacts", and the shock absorber gradually reduces the "minor energy multiple impacts".

If you have driven a car with a broken shock absorber, you can experience the bouncing after each pothole and undulation, and the shock absorber is used to suppress this bouncing.

Without automobile rear shock absorbers, it will be impossible to control the rebound of the spring and the vehicle will experience serious bouncing when encountering rough road surfaces. Turning will also result in the loss of tire grip and tracking due to the oscillation of the spring.

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