Vibration Control in Piping System by Dual Dynamic Absorber : 3-Dimensional Vibration Analysis and Absorber Design Using Transfer Matrix Method

Abstract

This paper deals with the application of dual dynamic absorbers to nuclear piping systems to accomplish a high damping value and reduce seismic response at resonance frequencies. The transfer matrix method is used for design of the dual dynamic absorbers as well as for determination of the optimum mounting location. The effectiveness of the dynamic absorber is demonstrated by suppressing the first three resonance peaks in the 3-dimensional model piping system.