Discover the ultimate guide to anti-vibration mounts to help you find the best option to eliminate vibrations and noise from machines. The position of the anti-vibration supports determines the vibration modes of the suspended element. An even load distribution is recommended for all anti-vibration mounts. An easy way to achieve this is to install the anti-vibration supports equidistant from the COG (center of gravity).
The position of the anti-vibration supports determines the vibration modes of the suspended assembly. An even distribution of the load between all vibration isolators is recommended. An easy way to achieve this is to install the anti-vibration supports equidistant from the center of gravity of the suspended equipment. Next, Figure 11 shows the position of a machine's gear and supports with positions A and B with respect to the center of gravity.
Achieving an equal distance between A and B will help achieve this goal. Vibration isolation supports protect machinery by reducing the amplitude and frequency of vibratory waves. Applications, such as large motors and industrial machines, generate powerful vibrations and excessive noise when they are active. These vibrations damage equipment and create unsafe working conditions.
Over time, this negatively affects product quality and can even stop production. In machinery applications, anti-vibration mounts act as a shock absorber, allowing motors and equipment to operate quieter and more efficiently. Vibration and instability can shorten the lifespan of any equipment, in addition to transmitting this vibration to other adjacent structures, generating high-frequency noise. The vibration of the machinery produced by the equipment can be transferred to the support structure and travel long distances to be emitted as noise in other parts of a building or structure.
A satisfactory degree of vibration isolation will be achieved if the dynamic stiffness of the anti-vibration supports is adequate, while the effect of inertia blocking will be to reduce the movement of the isolated machine due to the effects of rotating or reciprocating action. To model this system, AMC-MECANOCAUCHO application engineers can help create a mathematical model of the system using multibody computing software, as shown in the article Vibration Isolation in Industrial Machinery. Empirical results on vibration isolation in cabins can only be understood by performing analysis when performing vibration measurements. Pads or sheets made of flexible materials such as elastomers, rubber, cork, dense foam and laminated materials are often used in heavy machinery, underneath common household items, vehicles and other applications to reduce the transmission of noise and vibrations.
Rubber vibratory supports are particularly effective in preventing the transfer of vibrations generated by machines. A linear elastic load range provides the stiffness necessary to isolate vibrations from machinery. The supports include spring-type vibration supports, elastomer, neoprene, cable and pad, and shock and vibration insulators. Vibration isolators have many applications, for example, in machinery for the food and pharmaceutical industries.
That is, if the mass of the installation is doubled, the stiffness of the anti-vibration supports must also double. The basic function of a vibration isolation support is to act as a highly stable shock absorber between the source of the vibration and the object or surface being insulated.