Development and application of impact vibration absorber

J. Ocean Eng. Technol. 1993;7(2):37-43.

충격식 진동흡수기의 개발 및 응용에 관한 연구-제1보 자유질량체가 구형인 경우-

김동조

부산공업대학교 기계공학과

Keywords: Impact Damping, Strenght of Impact, Exciting Force, Equivalent Mass, Frequency Ratio

핵심용어: 충격감쇠, 충격강도, 가진력, 등가질량, 진동수

Abstract

The simplest vibrtion absorber is the impact damper which consists of a small mass allowed to impact between two gaps sp that energy is dissipated by conversion into noise and heat. Impact damping is a passive vibration control technique to attenuate the vibrations of lightly damped. It has been investigated to reduce the excessive vibrations of turbin blades, radar antennas, machine tools and tall light poles. In this paper, the efficiency of impact vibration absorber was investigated. A steady state vibration of two equispaced impacts per cycle was assumed. The analysis based on the assumption has been considered and the theory is examined experimentally.