Analytical and Experimental Investigation of a Tuned Undamped Dynamic Vibration Absorber in Torsion

subject of mechanical vibration at the under graduate level is introduced in recent years in many leading universities of the world. This necessitates the development of good vibration laboratory course work, using the resources available in the institute workshop with little operating cost. In this paper design and development of experimental setup for determining the response characteristics of torsional, tuned, undamped, dynamic vibration absorber is presented. A mathematical model for the absorber with base excitation is developed and the theoretical values of the torsional amplitude are calculated for different values of excitation frequency. The theoretical and experimental results are correlated.