Characteristics and Advantages of Rubber Shock Absorbers

Rubber shock absorbers, as a category of important shock-absorbing components, have been widely used in various machinery, automobiles, railway locomotives, waterborne vehicles, aircraft, and other aviation equipment. It can be said that wherever shock absorption and vibration isolation are required, rubber shock absorbers are needed. The extensive application of rubber shock absorbers is due to their effective utilization of the following characteristics of rubber:

Rubber boasts high elasticity and viscoelasticity.

2. Compared to steel, rubber exhibits a much greater elastic deformation and a much smaller elastic modulus.

3. The impact stiffness of rubber is greater than the dynamic stiffness, which in turn is greater than the static stiffness, benefiting in reducing both impact and dynamic deformation.

4. The stress-strain curve is an elliptical hysteresis line, with its area equal to the vibrational energy (damping) converted to heat during each vibration cycle, which can be adjusted through formula design.

5. Rubber is an incompressible material (Poisson's ratio of 0.5).

6. The rubber shape can be freely selected, and the hardness can be adjusted through formula design, meeting the requirements of different directions for stiffness and strength.

Advantages of Rubber Shock Absorbers:

The shape of rubber shock absorbers can be customized, allowing the stiffness in the vertical, horizontal, and front-to-rear directions to be achieved through the rational design of the shock-absorbing elements, thereby greatly simplifying the structure of the shock absorber.

2. The rubber shock absorber features deformation characteristics in three directions, allowing for greater tolerance during installation.

3. A robust bond can be achieved between rubber and metal.

4. Due to its damping properties, rubber can absorb vibration energy and convert it into heat, offering significantly greater shock absorption than metals, making it particularly suitable for high-frequency vibration conditions.

5. The rubber shock absorber features a simple structure, easy to use and maintain, requiring minimal repairs. It is wear-free, rust-free, and does not require oil lubrication. It is insensitive to water and dust, does not produce sudden breakdowns during use, is safe and reliable, and is cost-effective with a sufficiently long service life.

6. It offers the freedom to determine shape and controls hardness by adjusting the rubber formula components, catering to varying stiffness and strength requirements in all directions; it features high internal friction, excellent shock-absorption, beneficial for surpassing resonance areas and attenuating high-frequency vibrations and noise; its elastic modulus is much smaller than that of metal, enabling greater elastic deformation; with no sliding parts, it is easy to maintain.

7. Compact in size, easy to install and disassemble.

8. The impact stiffness exceeds the static and dynamic stiffness, which is beneficial for impact deformation.