基于模糊GO-FLOW法的动车组车载系统可靠性分析  

Reliability Analysis of EMU on Board System Based on Fuzzy GO-FLOW Method

作　　者：李少雄 齐金平[1,2,3] 周亚辉 王康 LI Shao-xiong;QI Jin-ping;ZHOU Ya-huil;WANG Kang(Mechatronics T&.R Institute,Lanzhou JiaotongUniversity,Lanzhou730070,China;Gansu Provincial Engineering Technology Center for Informatization of Logistics&.Transport Equipment,Lanzhou730070,China;Gansu Provincial Industry Technology Center of Logistics&.Transport Equipment,Lanzhou 730070,China)

机构地区：[1]兰州交通大学机电技术研究所,甘肃兰州730070 [2]甘肃省物流及运输装备信息化工程技术研究中心,甘肃兰州730070 [3]甘肃省物流与运输装备行业技术中,甘肃兰州730070

出　　处：《模糊系统与数学》2022年第4期151-160,共10页Fuzzy Systems and Mathematics

基　　金：国家自然科学基金资助项目(71861021);甘肃省重点研发项目(17YF1FA122);甘肃省高等学校科研项目(2018A-026;2018C-10);铁路总公司科研计划课题(2015T002-D)。

摘　　要：车载系统作为列车控制系统的重要组成部分,其可靠性的高低水平直接关系到整个列车的运营安全。首先根据动车组车载系统的工作原理以及故障模式,建立CTCS-3列控车载系统的GO-FLOW模型,按照车载系统的工作流程选取7个时间点进行可靠性分析;其次结合L-R型模糊算子,并选取合适的参量,改进传统GO-FLOW法的定量计算模型;最后采用改进后的模糊GO-FLOW定量分析模型,计算各部件在7个时间点的输出信号强度,结果表明,模糊GO-FLOW模型更具有逻辑性,能够更精确的表达系统可靠性的不确定性。该分析结果为动车组列车运营的可靠性提供了数据分析基础。As an important part of train control system,the reliability level of on-board system is directly related to the operation safety of the whole train.Firstly,according to the working principle and failure mode of EMU on-board system,the GO-FLOW model of CTCS-3 Train Control on-board system is established,and seven time points are selected for reliability analysis according to the working process of on-board system;secondly,the quantitative calculation model of traditional GO-FLOW method is improved by combining L-R fuzzy operator and selecting appropriate parameters;finally,the improved fuzzy GO-FLOW method is used for quantitative analysis The results show that the fuzzy GO-FLOW model is more logical and can more accurately express the uncertainty of system reliability.The analysis results provide data analysis basis for the reliability of EMU operation.

关 键 词：车载系统 安全 可靠性分析 L-R型模糊算子 GO-FLOW 

分 类 号：U284[交通运输工程—交通信息工程及控制]