ROBUST VIBRATION CONTROL OF A WIRE CHANGING ITS LENGTH

Abstract

This paper presents a vibration control method for a wire changing its length such as an elevator cable and a crane wire. We propose a synthesis method of vibration controller considering a time-varying uncertainty directly and having the robustness for a variation of tension, a transition of frequency of resonance and a spillover of high order modes. The performance and robustness of the proposed control method is examined through the numerical calculation on variable conditions.