基于WLSM和FWGM的地铁车门故障危害性评估研究  

Study on Fault Harmfulness Assessment Based on WLSM and FWGM for Metro Door

作　　者：王夫歌 邢宗义[2] 秦勇[3] 任金宝[1] 

机构地区：[1]南京理工大学机械工程学院,南京210094 [2]南京理工大学自动化学院,南京210094 [3]北京交通大学轨道交通控制与安全国家重点实验室,北京100044

出　　处：《组合机床与自动化加工技术》2015年第6期36-38,48,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家科技支撑计划项目(2011BAG01B05);中国铁路总公司科技研究开发计划课题(2013T002-A-2-3)

摘　　要：车门系统作为乘客上下地铁列车的通道,其可靠性直接关系到乘客的人身安全。为评估车门故障的危害,提出一种基于加权最小二乘法WLSM和模糊加权几何平均值FWGM的危害性评估方法。首先,利用WLSM将故障模式风险因子的所有个人决策整合,得出团队评价决策。然后,通过FWGM定义模糊风险优先数FRPN并应用线性规划模型计算其α水平集。最后,利用质心法去模糊化得出FRPN的明确值,并通过FRPN明确值的排序找出车门危害性较大的故障模式,为车门系统可靠性的提高提供技术支持。Door system is the channel for passengers to step in and out of the metro train,so its reliability is directly related to the safety of passengers. To assess the harm of door system failure,a method based on the w eighted least squares method and the fuzzy w eighted geometric method is put forw ard. First,by using WLSM to integrate all the individual decisions of failure mode risk factors,team evaluation and decision are reached. Then,FWGM is used to define the fuzzy risk priority Numbers and linear programming model is also used to calculate the level set of α. Finally,the qualitative method is used to blur FRPN to get a definite value. The failure mode w here the harm is bigger is found out according to the order of the FRPN definite value,w hich can provide technical support for the improvement of the reliability of the door system.

关 键 词：地铁车门 危害性评估 加权最小二乘法 模糊加权几何平均值 质心法 

分 类 号：TH165[机械工程—机械制造及自动化] TG65[金属学及工艺—金属切削加工及机床]