Understanding the methods to isolate your enclosure from vibration can significantly extend the lifetime of your components by reducing energy transfer from various vibration sources. This is essential to the protection of sensitive equipment within an enclosure. When considering an industrial compressor for instance, its durability can be compromised by vibrations. The solution in this case would be the strategic placement of isolators or dampers to restrict vibration transmission. Keep in mind, however, that every instance will be unique. What works for a compressor in a high-vibration area might fall short for a computer server in a less intense environment. Hence, it's crucial to determine the needs based on the nature and level of vibrations involved.

Isolating Vibration using a Damper

Dampers isolate enclosures from vibrations by absorbing and disrupting mechanical energy. Absorbed energy tends to be converted into heat, such as observed in silicone gel dampers in hard disk drives. The damper mitigates vibrations caused by high-speed rotation, thus protecting internal components.

Moreover, dampers impede the transmission of vibrations further into the system by disrupting energy paths. An example is the use of butyl rubber dampers in automotive applications, which curtails the propagation of engine and driveshaft vibrations, thereby reducing noise or component wear.

The selection of a damper is determined by various factors. The damping coefficient, a viable indicator of its energy dissipation capacity, is a crucial aspect to consider. Equally significant is environmental compatibility. For instance, silicone gel can withstand severe temperature changes while retaining its damping properties. Different damper forms such as vibration damping pads or mounting feet present unique advantages contingent on application requirements.

Isolating Vibration using a Spring

Springs store energy and release it at various rates, often applied to lessen vibrational impacts inside enclosures. Vibration isolation with springs works by either returning energy to the vibration origin or changing it into a minor amount of heat.

The success of vibration isolation depends on the kind of spring used. Available types of springs include gas springs, coil springs, and leaf springs. The spring choice must take into consideration the vibration characteristics, specifically frequency, displacement, and intensity.

Gas springs might be suitable for vibrations displaying high frequencies and low displacements, due to their high compressibility and ability to quickly absorb and release energy. In situations with vibrations that have low frequencies and high displacements, leaf springs or coil springs could be recommended as they can handle larger displacements without damage.

The spring constant, a measure of a spring's stiffness, and allowable displacement play a role in vibration isolation. If a vibration source generates strong forces, a spring with a high spring constant could be needed. On the other hand, if the vibrational displacement is small, a spring with a lower spring constant may be chosen, which might lead to reduced costs and a smaller design for the enclosure.


In summary, decreasing vibration in your enclosure contributes to the lifespan of its internal parts. Using devices such as dampers and springs can help in reducing vibration transmission. Knowledge about your system, including expected vibrations, leads to the correct choice of vibration isolation materials. The goal goes beyond just protection, it includes enabling your system to function to its best over its duration.