Abstract
A new type of impact damper consists of a bed of granular materials moving in a container fixed to a primary vibrating system. The problem is to determine the characteristics of the impact damper with granular materials for reducing the vibration of a single degree-of-freedom system when the driving force is simple harmonic. This report deals with the case when the damper is applied to a horizontal vibrating system. Experimental models were tested in the laboratory and theoretical analyses were developed to find the periodic solution s of the impact osicillations of a mass in the container, assuming that the coefficient of restitution R=0. The corrective mass ratios and clearances were found to fit the theoretical responses to those of experimentally obtained.
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