Fabrication & Testing of Dynamic Vibration Absorber

A dynamic vibration absorber or vibration neutralizer is a spring mass system which reduces or eliminate the vibrations. The dynamic vibration absorber widely used in passive vibration control system in machinery and structure. The dynamic vibration absorber is nothing but coupling of properly designed auxiliary spring mass system to the main system this auxiliary spring mass system is known as vibration absorber. The undamped dynamic vibration absorber is extremely effective at one speed only and thus it is suitable for constant speed machine. With the help of this system we are reduce or eliminate the vibrations of system by attaching spring mass system (absorber) to main system. When an absorbing mass spring system is attached to main mass and the resonance of the absorber is tuned to match that of main mass, the motion of the main mass is reduced to zero at its resonance frequency. Thus, the energy of the main mass is apparently absorbed by the tuned dynamic absorber. We are going to validate it by reducing or eliminating vibrations of main system for single speed.