Guidelines for the choice

Analysis of the static tests to select the appropriate vibration damper.

Basic data required:

• The static load applied to each vibration damping element (acting on each support point).
• Disturbing frequency to be reduced and the desired isolation percentage.

How to choose the vibration-damping element:

• With reference to the diagram for the check of the isolation degree, locate the corresponding static deflection required to obtain the desired isolation.
• Select the product with the required static deflection depending on acting load.

Example:

Consider an application with the following features:

• Static load on each support: 1400 N
• Frequency to be isolated: 1.200 rpm = 20 Hz
• Required isolation: 90% at 20 Hz

For vibration dampers without damping e.g. AVM, the following diagram for checking the isolation degree shows that a static deflection of at least 7 mm is required to obtain 90% isolation of the 20 Hz frequency, In case of damping, the isolation percentage may vary, it is advisable to contact the Elesa+Ganter Technical Department.

With reference to the graph below the products that intersect the 1400 N line are: AVF, AVG, AVM.

For the 1400 N load, the expected static deflections are:

• AVF: approximately 4 mm (< 7 mm) = approximately 80% isolation at 20 Hz
• AVG: 6.5 mm (<7 mm) = approximately 88% isolation at 20 Hz
• AVM: 13 mm (< 7 mm) = approximately 95% isolation at 20 Hz

Consequently, the most suitable product with the best isolation degree is AVM.