Analysis and Solution of Safety Clamp Misoperation Based on Fault Tree
This thesis aims to apply the basic principles of fault tree to analyze the malfunction of elevator safety pliers. By collecting the operating conditions,working environment,maintenance status,and fault records of 500 elevator safety pliers and speed limiters as characteristic values of the fault tree,analyze all possible causes of the safety pliers malfunction.By analyzing the causal logic of faults and strictly following the hierarchy,a fault tree model is established. Through qualitative and quantitative analysis of the fault tree,the fault problem of elevator safety pliers malfunction is analyzed. Finally,based on the fault tree,identify the problems with the elevator safety pliers of the users and provide solutions to ensure the safe operation of the elevator.