In this era of rapid economic development, companies in the engine industry are diligently testing self-developed autonomous engines. However, due to large vibrations, the engine noise often changes during the testing phase. Therefore, rubber shock absorbers came into being.
Introduction to Rubber Shock Absorbers and Their Benefits
In order to prevent this situation, there is a product called a rubber shock absorber, which is installed on the engine and has a vibration isolation effect. Once the vibration is isolated, the engine noise is also greatly reduced. The result of this can protect the environment and give testers a quiet working environment! How do rubber shock absorbers reduce the vibration caused by the engine?
Understanding Vibration Frequencies and Rubber Shock Absorber Selection
The power speed changes greatly and the disturbance frequency is large. For example, the lowest rotation speed of some diesel engines is 500rpm. At this time, the stirring frequency is f=8.33Hz, and the rotation speed is 300000rpm. At this time, the stirring frequency is f=5Hz. When selecting a vibration absorber, low-frequency and high-frequency vibration isolation need to be considered. Therefore, when choosing a low-frequency phase-sensitive shock absorber, the natural frequency (f0) of the rubber shock absorber should be below 347 to ensure outstanding vibration isolation power.
Natural Frequency and Its Impact on Vibration Isolation
The natural frequency of rubber shock absorbers: For example, when the engine speed frequency F is equal to the natural frequency f0 of the rubber shock absorber, that is, f/f0=1 point, the engine speed is 150rpm: when the engine speed is 106-212rpm; when the engine speed is 106 When the engine speed is 375rpm-792rom in the resonance zone rpm, the above vibration isolation power can reach 96%. Above, solid sound transmission is also completely isolated, and the effect is very good. The damping ratio should be ≥0.065. When the engine speed is high, the disturbance frequency is high, which can prevent the rubber shock absorber from shaking during high-frequency impact.
Installation Considerations and Broader Environmental Implications
As the machine switches on and off through the resonance zone, the amplitude likes to slow down. The rubber shock absorber is installed under the test bench, using an elastic foundation, and isolation measures are taken to isolate the vibration. Therefore, other issues should be considered during installation, such as water pipes and oil pipes, which should also have the effect of reducing demand. Nowadays, industrial production is developing rapidly, and people have also put forward higher requirements for the production environment. If industrial production seriously affects people’s living environment, it may reduce the living index of residents. The emergence of noise pollution will seriously affect human beings. Living, so air spring is indeed worthy of application, it can complete the noise reduction process at low cost.
