基于加权秩和比法的接触网质量评价方法

Evaluation Method of Catenary Quality Based on Weighted Rank Sum Ratio Method

研究目的:随着电气化铁路运营里程的增加,接触网运营维护压力与日俱增。为了保证接触网系统能够持续安全稳定地运行,急需研究能反映接触网动静态参数、设备质量、连续无故障运行时间的客观准确的质量评价方法。研究结论:(1)本文提出了基于加权秩和比法的接触网质量评价方法,该方法采用非整数秩次评价方法,可以将评价对象对应评价指标之间的数值差距大小带入整个评价算法从而获得更客观的评价结果,同时该方法采用了动静态指标、设备质量指标和连续无故障运行时间的二层评价指标和加权秩和比法,操作性强,专家介入更简单,结果科学可靠;(2)从理论分析和实验数据可以看出,该方法可以科学有效地对轨道交通接触网设备在一定时间段内的质量情况进行评价,其结果对接触网科学运维工作和运维策略的制定有较高的参考价值;(3)本研究成果适用于电气化铁路接触网专业领域。

Research purposes:With the increase of the operating mileage of electrified railway,the operation and maintenance pressure of catenary is increasing day by day.In order to ensure the continuous,safe and stable operation of the catenary system,it is urgent to develop an objective and accurate quality evaluation method that can reflect the dynamic and static parameters of the catenary,equipment quality,and mean time between failure.Research conclusions:(1)In this paper,an evaluation method of catenary quality based on weighted rank sum ratio algorithm is proposed.This method adopts the non-integer rank evaluation method,which can bring the numerical difference between the corresponding evaluation indicators of the evaluation object into the entire evaluation algorithm to obtain more objective evaluation results.At the same time,the method adopts the two-level evaluation index of dynamic and static indicators,equipment quality indicators and mean time between failure and the weighted rank sum ratio method,which has strong operability,easier expert intervention and scientific and reliable results.(2)From the theoretical analysis and experimental data,it can be seen that this method can scientifically and effectively evaluate the quality of rail transit catenary equipment in a certain period of time,and the analysis results have a high reference value for the scientific operation and maintenance of the catenary and the formulation of operation and maintenance strategies.(3)The research results are applicable to the professional field of electrified railway catenary.