基于云模型和改进CRITIC方法的跨座式单轨车辆运营安全评估  

Operational safety assessment of straddle monorail vehicle system based on cloud model and improved CRITIC method

作　　者：文孝霞[1] 聂羿 杜子学[1] WEN Xiaoxia;NIE Yi;DU Zixue(School of Mechanical and Electrical Engineering,Chongqing Jiaotong University,Chongqing 400074,China)

机构地区：[1]重庆交通大学机电与车辆工程学院,重庆400074

出　　处：《江苏大学学报（自然科学版）》2022年第5期512-518,共7页Journal of Jiangsu University：Natural Science Edition

基　　金：国家自然科学基金资助项目(51475062)。

摘　　要：提出了一种基于云模型和CRITIC方法的跨座式单轨车辆系统的运营安全评估方法.根据跨座式单轨车辆系统的结构和功能,建立跨座式单轨车辆可靠性指标体系,并采用改进CRITIC方法确定可靠性评价指标的权重值.采用虚拟云得到跨座式单轨车辆系统可靠性评价指标的云模型表达.将跨座式单轨车辆系统可靠性综合指标新云和可靠性评价集的云模型进行相似度分析,以判断跨座式单轨车辆系统综合云模型运行状态.结果表明:跨座式单轨车辆转向架指标、空气制动指标、列车网络指标、列车辅助系统指标和车辆系统的综合云模型均处于“主要功能”状态,与重庆市轨道线路实际运营状态具有良好的一致性,基于云模型和改进CRITIC法的跨座式单轨车辆系统可靠性评价方法可以较准确地评价重庆市跨座式单轨车辆系统日常运行状态.An operational safety evaluation method of straddle monorail vehicle system was proposed based on cloud model and CRITIC method.According to the structure and function of the straddle monorail vehicle system,the reliability index system of the straddle monorail vehicle was established,and the weight values of the reliability evaluation index were determined by the improved CRITIC method.The cloud model expression of the reliability evaluation index of the straddle monorail vehicle system was obtained by the virtual cloud.The similarity analysis between the new cloud of the comprehensive reliability index of the straddle monorail vehicle system and the cloud model of the reliability evaluation set was conducted to judge the operation status of the comprehensive cloud model of the straddle monorail vehicle system.The results show that the bogie index,air brake index,train network index,auxiliary system index and the integrated cloud model of the vehicle system are all in the″main function″state,which is in good agreement with the actual operation state of Chongqing rail lines.The system reliability evaluation method based on the cloud model and the improved CRITIC method can accurately evaluate the daily operation status of the straddle monorail system in Chongqing.

关 键 词：城市轨道交通 跨座式单轨 CRITIC 云模型 可靠性评价 

分 类 号：U298[交通运输工程—交通运输规划与管理]