A Study of Stability Analysis on Nonlinear Dynamic Vibration Absorber Acting on Damped Main Vibration Systems

J. Ocean Eng. Technol. 1992;6(1):62-68.

선형진동계에 작용하는 비선형진흡진기에 관한 안정성해소 연구

안찬우,박일수,박동환

동아대학교 기계공학과,동아대학교 기계공학과,동아대학교 기계공학과

Keywords: Dynamic Vibration Absorber, Routh Hurwitz Method, Harmonic Balance Method, Amplitude Ratio, Damping Ratio

핵심용어: 동흡진기, 루스 허르쯔법, 조화바란스법, 진폭비, 감쇠비

Abstract

In this study, a system coupled with the nonlinear dynamic vibration absorber was modelled, and its equation of motion was analized by the harmonic balance method to obtain the amplitude ratio. And also, the stability analysis was done by the Routh Hurwitz method. In the vibration systems coupled with the nonlinear dynamic vibration absorber, the unstable region and the jump phenomenon can be ramarkably affected by the damping ratio. The stable and unstable region that obtained to differential method excellently agreed to the result of the stability analysis of Routh Hurwitz.