Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : January 24, 2025
The goal of this research is to operate the elevator while controlling the vibration of the elevator rope during relatively weak earthquakes. When the elevator ascends or descens, the rope length changes. This results in a situation where higher-order vibrations may be excited. Also, changes in rope length can make time-invariant control inefficient or unstable. In this paper, a method is proposed that can suppress the effects of higher-order vibrations and perform efficient control while the elevator is “stopped”. The method uses two types of weight functions: one that adapts to the rope response level and one that evaluates the content of higher-order modal responses. As a performance evaluation, vibration control simulations of the compensating rope on the car side were performed using the proposed control method, and it was confirmed that vibration could be effectively suppressed while preventing spillover of higher-order vibration modes.
