抄録
A vibration suppressor is used to change the natural frequency of an elevator rope, and to prevent resonance. The elevator rope is modeled using a string. However, the vibration of the string that has a vibration suppressor has been studied for a few conditions because of its geometric nonlinearity. An exact solution of the free vibration of a string when the position of the vibration suppressor is 1/N (N is an even number) of the position of the string has been obtained. However, in the case where N is an odd number, no exact solution of the free vibration has yet been obtained. In this paper, an exact solution of the free vibration of this case is presented. Finite difference analysis of the string vibration with a vibration suppressor is performed. The calculated results obtained from the finite difference analysis are in good agreement with those of the exact solution.
