승강기 출입문 이탈방지장치의 충돌 해석

초록

This study aims to improve the elevator door safety retainers by performing crash analysis to develop them further to withstand strong external impacts. Current elevator door safety retainers are designed to withstand kinetic energy of 450 J, which is a level appropriate to prevent a fall accident due to door departure when a person inadvertently collides. However, elevator door safety retainers withstanding stronger external impacts are required to prevent an elevator door departure accident due to the recently increasing electric scooter collision . Hence, this study developed an elevator door safety retainer to withstand 1000 J of external impact. Collision analysis applying collision energy of 450 J and 1000 J, respectively, was performed on the existing model, and the results were analyzed. It was concluded from the results that the design needs to be improved. Therefore, this study selected the width of the guide shoe stopper insertion part, the thickness of the guide shoe, and the insertion depth of the guide shoe, which constitute the elevator door safety retainers, as major design parameters. Subsequently, the difference in crash analysis results with a change in these design parameters was analyzed, and the optimal design parameters were presented.

키워드