whether the vehicle shock absorbers, or the basic principles of industrial shock absorbers are similar, basically divided into two parts, a spring a damping mechanism, the most basic can not be less is the rebound damping.As expressed in R, shock absorption is replaced by the R impact to + quantity that can be advanced as some have compression damping in C, said senior compression damping is divided into two sections, high speed compression C1 and C2 low-speed compression, such as the spring is fixed on the number of pounds, down stroke and the elastic curve is fixed, simple point said is elastic size is fixed, the moment can by adjusting the compression damping C to suppress stroke shrinkage reaction, change the elastic curve, sleazy compression damping C1 can reduce little vibration response inhibition brake for the suspension of interference,High speed compression damping C2 can prevent and cure is the stroke is used up, the same is not to let the stroke is used up, prone to danger, or the shock absorber is broken (increase the force of rapid contraction of the end of the stroke).