Wherever there is a working equipment or machinery there are vibrations. They may appear harmless to a visitor or may go unnoticed by the people around depending on the intensity and noise generated. The vibrations are however very harmful to your machines and infrastructure. The surrounding equipment and supports also have their own natural frequency of vibration. The vibrations from a working machine are transmitted to the support causing them to vibrate sympathetically. The phenomenon of resonance occurs when the sympathetic vibration frequency matches the natural frequency of the support infrastructure. A loud noise is produced and the supports may vibrate violently causing damage. Thus, it is essential to go in for rubber vibration isolators in order to safeguard your equipment and machines.
- The rubber vibration isolators are used to limit the amount of vibration energy transfer to the supports
- The products are suitable for both stationary and dynamic applications.
- Choice of size, application, and load bearing capacities are available in the product range.
Mount the equipment: The rubber isolation mounts have the elastomer element, which is responsible for the damping of vibrations. The mechanical energy is absorbed by the rubber vibration damper and dissipated in the form of low-level heat. The amount of damping is dependent on a number of factors like the frequency of vibration, weight of the equipment, and the surface area. The selection of the rubber mounts for vibration has to be done carefully by taking into consideration all the contributing factors.
Shapes and types: There are a variety of shapes and sizes available for the rubber vibration isolators and the selection is based on the application requirements. The shapes include cylindrical, hexagonal, and two-piece etc. In addition to the shape, the rubber isolation mounts are available as center metal bonded type and grommet type etc. to name a few. For applications where the equipment is to be suspended from the ceiling, the spring hanger mount vibration isolators are used.
Suspension of equipment: For the HVAC equipment, ducting, and pipes extensive use of spring hangers is done. The spring provides the deflection to take care of the load while the elastomer element provides the vibration damping. The suspended equipment and the support structure are isolated from each other by virtue of the elastomer which does not permit metal to metal contact. The spring hanger supports are used for ease of mounting. The air conditioning units which generate a lot of vibrations when the compressor works can be mounted on the rooftops by using the rubber isolation mounts while the entire ducting in the building can be suspended from the ceilings or support structure using the spring hangers.
Shock Vibrations: When there is an explosion or an earthquake strike, a shock pulse may be generated which results from a sudden acceleration. This form of shock vibration is highly destructive and damaging. Since an earthquake or a terrorist strike is not a routine phenomenon, it used to be ignored earlier. However, as people are becoming more aware they are concerned about seismic restraints and shock vibration control as well. The shock isolators are now being used extensively for the protection of buildings and sensitive high-cost equipment. They are highly recommended for vehicles used by the armed forces on land, sea and in air. The poor road conditions and situations arising out of collisions are “no match” for the shock isolators. Similarly, they are effective in turbulence, rough landings, high-velocity winds and sea storms.
Shackle mounts with an elastomer element between the metal plates are used as an effective anti-vibration product. The shock impacts are suitably absorbed by the rubber vibration damper in tough conditions. A wide variety of shackle mounts is available in varying shapes and sizes. These include the mounting plate and threaded stud type, square plate with corner holes type, and cap plates with elastomer type.
Andre HVAC International Inc. entered the anti-vibration arena way back in the year 2003. From a modest beginning then, AHI is present today in the majority of the anti-vibration products available in the market. The hallmark has been the consistent quality and customer service. The firm provides assistance to its clients on the various aspects of vibration control at the design stage itself. The customers also find AHI to be a one-stop solution for their anti-vibration needs because of the wide variety of products and selection support documentation. Whether it is a rubber isolation mount or a spring hanger, you can be almost sure of finding the suitable type at AHI Inc.