Vertical vibration analysis for elevator compensating sheave

4th Symposium on the Mechanics of Slender Structures

物理学;力学

Watanabe, Seiji^1 ; Okawa, Takeya^2 ; Nakazawa, Daisuke^1 ; Fukui, Daiki^1

Advanced Technology RandD Center, Mitsubishi Electric Corp., Hyogo, Japan^1

Inazawa Works, Mitsubishi Electric Corp., Aichi, Japan^2

关键词: Elevator shafts;    Upward motion;    Vertical motions;    Vertical vibrations;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/448/1/012007/pdf
DOI  :  10.1088/1742-6596/448/1/012007

学科分类：力学，机械学

来源: IOP

【 摘 要 】

Most elevators applied to tall buildings include compensating ropes to satisfy the balanced rope tension between the car and the counter weight. The compensating ropes receive tension by the compensating sheave, which is installed at the bottom space of the elevator shaft. The compensating sheave is only suspended by the compensating ropes, therefore, the sheave can move vertically while the car is traveling. This paper shows the elevator dynamic model to evaluate the vertical motion of the compensating sheave. Especially, behavior in emergency cases, such as brake activation and buffer strike, was investigated to evaluate the maximum upward motion of the sheave. The simulation results were validated by experiments and the most influenced factor for the sheave vertical motion was clarified.