What is the function of shock absorbers?

[StAdriana]

The function of shock absorbers is to suppress the oscillations caused by the rebound of springs after absorbing shocks and impacts from the road surface. Shock absorbers are used in automobiles to accelerate the attenuation of vibrations in the frame and body, thereby improving the ride comfort of the vehicle. When driving on uneven roads, the shock-absorbing springs can filter out road vibrations. However, the springs themselves still undergo reciprocating motion, and shock absorbers are employed to restrain this spring bouncing. The principle of shock absorbers is as follows: when relative motion occurs between the frame and axle due to vibrations, the piston inside the shock absorber moves up and down, causing the oil in the shock absorber chamber to repeatedly flow from one chamber to another through different orifices. The friction between the orifice walls and the oil, as well as the internal friction between oil molecules, creates resistance to the vibrations, converting the vehicle's vibration energy into heat energy of the oil, which is then absorbed and dissipated into the atmosphere by the shock absorber.