Regarding the impacts of failures among elevator components,a combination model based on decision-making trial and evaluation laboratory(DEMATEL)and interpretation structural model(ISM)was proposed to establish the hierarchical model for ele-vator component failure.The method of determining the direct impact matrix was enhanced.Firstly,the evaluation of the elevator-com-ponent fault correlation was obtained from various aspects.Secondly,the entropy weight method(EWM)was used to determine the weight of the evaluation and calculate the direct impact matrix.Finally,the elevator-component failure correlation model was utilized to derive the elevator-component failure causality and failure transmission rules.The results show that the motor,brake and speed limiter are strong-cause components,while the traction rope,car and guidance system components are strong-effect components.The elevator-component failure correlation rules manifest as either same-level or cross-level transmission.Through an analysis of component failure mechanisms,the fault transfer rules obtained through the proposed method align with the actual operation of the elevator system.
关键词
曳引电梯/故障关联/熵权法/决策试验与评价实验室法/解释结构模型
Key words
traction elevator/fault correlation/entropy weight method/decision making trial and evaluation laboratory/interpreta-tion structure model
维普
万方数据