80 / 2021-03-30 00:21:46

Study on Vibration Control Technique for Elevator using Guide Roller Mechanism

elevator,time-history analysis,roller guides,coil spring,Passive control

Vehicle System dynamics and Control

The guide roller is a vibration control mechanism installed between the guide rail and the cage in the elevator shaft, and has the role of guiding the elevator up and down and reducing vibration caused by unevenness on the guide rail. In recent years, elevators have been required to have higher speeds and longer travel distances due to the increasing height of buildings. However, if the conventional guide rollers are used, the vibration generated between the guide rollers and the guide rail will increase and affect the ride comfort of the elevator. Therefore, optimization of the guide roller mechanism is required in the future.

This study focuses on the vibration problem in the elevator guide roller part and aims to investigate an effective guide roller mechanism that is both comfortable and durable. For this purpose, an analytical model for calculating the time history response analysis of elevators was developed, and the specifications of the guide rollers were examined through a simulation incorporating springs and damping elements based on previous studies. In addition, a prototype guide roller with the specifications obtained from the simulation analysis is fabricated, and the prototype guide roller is evaluated using a small-scale test apparatus that simulates the running condition of an elevator.

This paper describes the results of the simulation analysis and the running test for evaluation the vibration reduction effect of the damping element installed in the coil spring of the guide roller mechanism.