A Laymans Guide To Vibration Isolators

As fair weather spreads across of the continental US construction professionals and boating enthusiasts both inspect their machinery for the season ahead. What to pleasure boats and earth movers have in common? According to professionals at AV Products Inc. they have one issue in common with several other classes of vehicles including cars trucks and RVs: vibration. Vibration isolation mounts are an integral part of these machines. Large boats need marine engine mounts to keep in working order and construction machinery needs engine vibration mounts to function safely.

How do they work? Antivibration mount technology is based on the principle of planned isolation: using systems to prevent a mechanical systems vibrations from spreading to the surrounding structures. Without planned isolation the powerful engines used in forklifts larger boats and industrial machinery would be impossible. Built up vibrations would eventually damage the surrounding structures and tear the engine apart. A static mount such as a metal frame is ineffective because it will either transmit the vibrations into other structures anyway or bounce them back to the machine tearing it apart.

Thats why machines need mounts that will not only suspend the engine away from other structures but provide a way to dissipate vibrations. The engine floats on its mounts which absorb vibrations without significantly transmitting them to the rest of the structure. Vibration isolators do this by providing an opposed force; the net result of the two reduces the final vibration to a negligible level. The secret lies in using the exact materials size and shape required so that when the mount is subjected to force from the engine it contains and deflects it. Think of dropping a rubber ball. It bounces back because of the opposed force generated by its impact. If you were to tie the ball to your palm instead and slap the ground with the same force you wouldnt feel the ground but you would feel the ball pushing back deflecting the force of the impact.

Rubber antivibration mounts are far more sophisticated than this however because they are calibrated for the specific amplitude or intensity of the attached machine. The physics of vibration are well understood so vibration isolators can be built for specific engines and other machines with a high degree of precision. Vibration isolation mounts are made of materials that match the necessary specifications. For example rubber is a common material because of its elastic strength but a mount will actually be made of a type of rubber designed to meet a specific vibration capacity. If the rubber is too soft it wont provide opposing force. If its too hard too much of that force will deflect back damaging the engine.

Unfortunately all systems wear out in time so whether your machines are used for business or recreation checking your antivibration mounts for wear and tear and paying attention to unusual noises and vibrations should be one of the fundamentals of spring maintenance. Your antivibration mounts are essential. If they dont work the engine doesnt work. Order the right replacements as soon as possible.

About the writer:  AV Products Inc. is a leading supplier of mobile and stationary machine mounts for industrial and marine applications including marine mounts for workboats and pleasure boats and rubber vibration mounts for power generation systems and construction vehicles. For inquiries AV Products toll free at 8664965654 or email infoavproductsinc.com.

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