The shock absorber is widely used because of its effective application of the following properties:
It has high elasticity and viscoelasticity. Compared with the steel material, it has small elastic deformation and elastic modulus; The impact stiffness is greater than the dynamic stiffness, dynamic stiffness and static stiffness ratio, which is conducive to reducing the impact deformation and dynamic deformation. It is an elliptical delay line of stress-strain curve, whose area is equal to all vibration cycles, and it is thermal vibration (damping); The shape after formula design adjustment can be freely selected, and can be adjusted through hardness formula design to meet the different directions of required stiffness and strength. There is no certain shape. By adjusting the formula composition to control the hardness in all directions, the required strength and stiffness of internal friction can be met. The damping effect is good, which is conducive to cross resonance, high-frequency vibration and noise attenuation. Compared with the elastic modulus of metal, it can avoid local sliding, large elastic deformation, small quality that is easy to maintain, and easy to disassemble the device. The impact stiffness is higher than the static stiffness and dynamic stiffness, which is conducive to impact deformation.
These non waiting advantages of dampers have greatly promoted their wide application Especially for the automobile industry, the automobile pneumatic ball valve plays an important role.