Vibration Reduction

The dynamic vibration absorber (DVA) or tuned mass damper (TMD) is a device which can reduce the amplitude of vibration of a structure through interactive effects. A TMD consists of a mass, connected by means of an elastic element and a damping element to the structure.

• The amplitude of vibration of a structure at resonance can be effectively reduced through slightly increasing or reducing the natural frequency of the structure thus avoiding resonance from an input at a given frequency.
• The amplitude of vibration of a structure can be reduced through base isolation which changes the natural frequencies of the system.
• The amplitude of vibration of a particular mode of a structure can be effectively reduced using a tuned-mass-damper.