As an important shock absorber, rubber shock absorber has been widely used in various machinery, automobiles, railway locomotives, water transport vehicles, aircraft and other aircraft. It can be said that rubber shock absorbers are required wherever shock absorption and isolation are required. The reason why rubber shock absorber is so widely used is that it effectively uses the following characteristics of rubber:
1. Rubber has high elasticity and viscoelasticity;
2. Compared with steel materials, rubber has large elastic deformation and small elastic modulus;
3. The impact stiffness of rubber is greater than the dynamic stiffness, and the dynamic stiffness is greater than the static stiffness, which is conducive to reducing the impact deformation and dynamic deformation;
4. The stress-strain curve is an elliptical hysteresis line, and its area is equal to the vibration energy (damping) converted into heat in each vibration cycle, which can be adjusted through formula design;
5. Rubber is incompressible material (Poisson's ratio is 0.5);
6. The rubber shape can be freely selected, and the hardness can be adjusted through formula design to meet the requirements of stiffness and strength in different directions.
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Characteristics Of Rubber Shock Absorber
2020-09-28
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