1. The role of shock-absorbing rubber: instead of metal springs, it can eliminate and absorb vibration. Its main performance requirements are static stiffness, dynamic stiffness, and durability.

2. Characteristics of shock-absorbing rubber: (Compared with metal spring rubber)
①Rubber is composed of a variety of materials, and the same shape can have different properties through material adjustment.
②The friction between the internal molecules of the rubber makes it have a certain damping performance, that is, the hysteresis of motion (the deformation of the rubber lags behind the stress of the rubber during the stress process).
③ Rubber will produce different elastic coefficients in the process of compression, shearing and stretching.

3. The working principle of shock absorbing rubber:
①Vibration absorption: This kind of shock-absorbing rubber parts is mainly used for the connection between the engine and the body. In this state, the engine is the source of vibration. The function of the shock-absorbing rubber is to absorb the vibration generated by the engine and prevent it from being transmitted to the body. Reduce the vibration of the engine itself.
② Vibration reduction: This kind of shock-absorbing rubber parts is mainly used for the connection between the chassis and the body. In this state, the wheels of the chassis are the source of vibration. The function of the shock-absorbing rubber is to quickly reduce the vibration generated by the road surface and the wheels through high damping. , to prevent vibrations from being transmitted to the body through the chassis.
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