Components are widely used to isolate vibration and absorb impact because of their hysteresis, damping and reversible large deformation characteristics. In addition, it also has hysteresis and internal friction characteristics, which are usually expressed by loss factor. The larger the loss factor, the more obvious the damping and heat generation, and the more obvious the valve effect. The pneumatic butterfly valve made of has good valve effect.
The self frequency of various pneumatic butterfly valves is very low, but when the excitation frequency is very low, the reducer is in the non reduction zone, and the reduction effect is very poor. If the excitation frequency is equal to or close to the self frequency of the reducer, the amplitude increases greatly, and the reduction effect is very poor. Only when the excitation frequency is greater than a certain value of the self frequency of the pneumatic butterfly valve, the pneumatic butterfly valve is in the reduction zone, and a better reduction effect is obtained.
Advantages of pneumatic butterfly valve:
1. The shape can be freely determined, and the hardness can be controlled by adjusting the composition of the formula, which can meet the requirements for stiffness and strength in all directions;
2. The internal friction is large and the valve effect is good, which is conducive to crossing the common area and attenuation of high-frequency motion and noise; The elastic modulus is much smaller than that of metal, which can produce large elastic deformation;