Difference between shock absorber and ball valve shock absorber
Shock absorber and ball valve shock absorber are two different shock absorbers, and they are quite different, but their role is to reduce vibration. When selecting shock absorber, many people do not know whether to purchase shock absorber or ball valve shock absorber. In fact, first of all, we need to understand the difference between the two to know their detailed use.
Characteristics of shock absorber:
1. High elasticity and viscoelasticity;
2. Compared with steel material, the elastic deformation is very large and the elastic modulus is very small;
3. The impact stiffness of 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. Is non contractibility data (Poisson's ratio is 0.5);
6. The shape can be freely selected, the hardness can be adjusted through the formula design, and can meet the requirements of stiffness and strength in different directions; 7. Its natural frequency is difficult to reach below 5HZ;
8. Its resistance to environmental and high temperature changes is weak and its life is short; 9. No sliding parts, easy to take care of.
Characteristics of ball valve damper:
1. Low frequency design, good vibration isolation effect;
2. It has strong adaptability to the working environment and can work normally at - 40 ℃ - 110 ℃. It has obvious effects on active vibration isolation, passive vibration isolation, shock vibration isolation and solid sound transmission isolation;
3. Wide load range and strong compliance.
As long as we understand the difference between the above shock absorber and ball valve shock absorber, we can know which of the two is the appropriate shock absorber type.