28
Oct

The process of vibration isolation involves isolating an object, like machinery and other such vibration-generating objects, from the source of vibration. When the various motorized equipment, including electric motors, fans, or pumps mounted on a solid structure, the energy from the equipment is transferred to the structure at a high rate in the form of vibration. These vibrations could result in noise that can be pretty annoying or even damage the equipment.

It is where vibration isolation comes into the picture to protect equipment from damage caused due to vibrations. Vibration isolation is a practical solution and is applied to many industries to prevent damage to the machinery caused due to vibrations when operated.

Vibration isolation works by reducing the transmitted vibration magnitude to the equipment. The significant features of a vibration isolator include having a resilient load-supporting means, and energy-dissipating means. You can find some of the best vibration isolation means at the best distributors in Kuwait.

How does vibration isolation work?

Vibration in motorized equipment is caused due to back-and-forth oscillation of the components of the machine. If we take the example of an industrial plant, the vibrations can be caused by a drive motor, pump, compressor, and other such mechanical parts. The primary cause of vibrations is the constant rotation motion of the equipment or machinery. It can also be caused due to the frequency of the electrical supply. Here are a few more factors, causing vibration through energy transmission:

  • Rotational shaft speed
  • Frequency of electrical motor rotor bar
  • Frequency of gear mashing
  • Frequency of impeller blade pass
  • Bearing frequencies
  • Belt frequencies
  • External frequencies

Vibration isolation solutions protect electrical machinery and other motorized objects causing vibrations from product damage with use. It works by properly isolating the object, which reduces vibrations to negligible ones. The vibration isolator tools or means are therefore placed between the motorized device and the structure surface it is mounted on to restrict the contact. It results in the creation of a low natural frequency support system for the equipment and lowers the impact of vibrations. Vibration isolation solutions are further classified into passive vibration isolation and active vibration isolation.

Passive vibration Isolation: Generally, a passive vibration isolation system consists of mass, spring, and damper. This vibration system uses passive techniques to reduce vibrations by creating a barrier with rubber pads or mechanical springs. The spring and mass would create natural frequency, and the damping affects the natural frequency. It results in the transfer of energy during vibrations at the natural frequency, and natural frequency application is reduced by damping.

Active Vibration Isolation: This system of vibration isolation, has a spring and a feedback circuit that contains a sensor, a controller, and an actuator. The active vibration isolation system is a servo mechanism that uses a processor-based actuation methodology. It works by transferring the vibrations to the control circuit and then to the electromagnetic actuator, which significantly reduces the vibrations. This system is considered more accurate than passive isolators. Also, there is no resonance in the active vibration isolation system.

There are many factors that should be considered before choosing a vibration isolation system for any space or object. So, do your research first, and then make the right decision for a vibration isolation system.

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