エレベータロープのいくつかの非線形現象に関する考察

抄録

In order to estimate the vibration damping characteristics of the elevator rope, a basic experiment using a silicon rope was conducted. There are three causes for rope vibration damping. The first is viscous damping, which is proportional to the vibration velocity to the 1.5th power. The second is vortex damping, which is proportional to the square of velocity, and the third is structural damping. The loss coefficient was obtained by changing the vibration excitation amplitude and measuring each displacement transfer function. When the vibration amplitude is large, the velocity square damping becomes dominant. We also proposed the CA method as a vibration analysis method for strings with varying lengths.

The analysis result by the CA method showed a value close to the approximate analysis solution.