Spring mounts for vibration isolation and dampening in industrial areas

Vibration is caused due to the movement or motion of machines in operation. The object which is in motion is usually the driver and the object which is influenced by the driver is the driven. The transfer of this vibrational energy invites un-stability in the system and increases wear and tear of components. To restrict this flow of vibrational energy, a flexible material between the driving object and the driven object is installed. This flexible material is nothing but a vibration isolation equipment that helps limit transfer of high frequency vibration from one object to another. If the right kind of vibration isolator is used, it will surely provide the desired results for which they are installed. Vibration isolators with little damping properties are capable of extreme reduction of vibration transmission at higher frequencies.  

There are two types of vibration isolation applications. The first type is designed to reduce the transmission of vibratory forces from a piece of equipment to the foundation on which it is mounted. The vibration isolation of reciprocating engines, large fans, electric motors, etc. are examples of this type of isolation application. The second type of vibration isolation device is designed to reduce the transmission of vibration velocity or amplitude to the piece of sensitive equipment that is mounted on the floor or to another structural member. Depending on the requirement and application in use, one needs to select a vibration isolator that suit their needs.

Some typical materials used for vibration isolators are elastomers, elastomeric foam, cork, felt, fiberglass boards, and steel in such forms as springs, pads, cables, etc. Among all the of these materials, spring isolators are the most in demand for its effective properties and features. The essential features of Spring isolators are that they are resilient load-supporting member (stiffness) and energy dissipating devices (damping). However, in certain types of isolators, the stiffness and damping functions are provided by a single element as in the case of elastomers, elastomeric foam, glass fiber boards, wire mesh, and wire cable isolators. Compared to rubber or elastomers mounts, spring isolation mounts have increased static deflection, resulting in greater isolation efficiency. This makes them more suitable for critical applications, or for mechanical equipment which have low disturbing frequencies.

Spring mounts come in a range of deflections and maximum loads, so that the level of isolation can be accurately selected for each application. Springs isolators are widely used in HVAC system since, HVAC units have many moving parts, including fans, which cause a lot of vibration. These vibrating elements in HVAC acts as a source of vibrational energy which is transferred to the other elements internally as well as externally. External elements affected by the vibrational energy are usually the foundation or structure on which HVAC system is mounted.  It is extremely crucial and essential to isolate this energy to ensure better stability of base.

Spring isolators for HVAC vibration are ideal for creating a buffer between the HVAC system and the base on which they are mounted. Construction of these Spring vibration isolators vary depending upon its applications and vibrational energy which it needs to isolate. In certain scenario’s more than one spring isolators are mounted to provide effective buffer in between driver and driven elements.

 

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