Vibrations can cause noise in a machine which may be irritating to the people in the surroundings. Excessive vibrations may result in parts of the machine rubbing against each other. In the long run, the rubbing can result in breakage or breakdown of the machine. The vibration dampening pads can be used to isolate the parts of the machine or absorb vibrations.
Why we use vibration control pads? Vibrations are a part and parcel of our everyday life. They are necessary for generation of sound for communication and say listening to music. They are also used for generation of heat. But the vibrations are harmful to machines and equipment. That is why we resort to the use of vibration absorbing pads and anti-vibration sheets for protection. The vibration control pads absorb the mechanical energy and help in overall system protection. The absorbed energy is dissipated in the form of low-level heat by the vibration dampening pad. The dampening depends upon a number of factors like the mass, frequency of vibration, and the surface area and hence the selection of the vibration absorber has to be done carefully.
Rubber cork sandwich pads: It is almost a century ago when the rubber and cork combination was found to offer a reduction in vibration and noise. The rubber cork pad comprises of a cork layer sandwiched between two layers of rubber. Suitable ribbing is provided in the rubber portion to avoid slippage. The ribbing in the rubber cork pad can lead to loading of the cork and a waffle design is used in the rubber to increase the load bearing area. Special elastomeric rubber materials like neoprene can offer resistance to ageing water and oil. The neoprene cork pads can thus suitably handle harsher environments. While the neoprene vibration isolation pads are known for resiliency, its combination with cork provides superior sound isolation.
Other anti-vibration products: The anti-vibration grommets are used to isolate laboratory instruments and other sensitive equipment from unpredictable vibration and shock. The grommet comprises of a rubber isolation pad/grommet with a special shoulder screw to ensure correct spacing and full tightening. The TICO anti-vibration pads provide a good vibration damping performance. They use a fluted elastomer element sandwiched between two cork pads. The cork layers prevent slippage and the elastomer provides the damping.
Vibration damping systems: In vibration isolation system the natural frequency of the mechanical system is lowered below its excitation frequency. The natural and excitation frequencies do not synchronize and hence, resonance is not caused. This reduces the amount of vibrations and linked problems. The Vibration damper works on taking the energy out of the system. By increasing the damping you can reduce the vibration and noise. In a good vibration damping system, the leftover energy is converted into a small amount of heat that is dissipated. The damping system also improves the fatigue life of the mechanism or structure.
Andre HVAC International Inc., which is based in Ontario Canada, is one of the leading anti-vibration pad suppliers. You can source the entire range of anti-vibration rubber pads and a wide variety of vibration pads for machines from them.