| A comprehensive experimental study is presented on the dynamic behaviour of a modified, resilient impact damper. The new damper's performance is compared to that of the conventional rigid slug under both sinusoidal and random white noise excitations. Two semi-empirical approaches to predict the dynamic behaviour of the new damper for sinusoidal excitations have been found to produce quite close approximations to the reduced steady displacement of a SDOF primary system. In addition, a package of computer programs has been developed to obtain the general solution of a vibroimpact system without assuming the pattern of collisions a priori. Finally, the effectiveness of this modified damper is demonstrated by delaying the chatter of boring bars during actual machine shop tests. |
