Reliability analysis of subway vehicles based on the data of operational failures

Abstract

A large quantity of failure data for subway vehicles was collected from long-term field investigations and technical exchanged. These failure data has a guiding significance for preserving subway system. By preprocessing (screening, refining, and classification) the original data and statistical analysis, we establish some selected model, then we use A-D test to verify the degree of fitting in selected model so that we can determine the optimal failure distribution model, and then the reliability characteristic quantities could be calculated by the optimal failure distribution model. These reliability characteristic quantities can predict failure rate, failure number, etc. It can be used to assist proper maintenance scheduling to reduce the occurrence of accidents and significant to important practical guiding.

The research on operational reliability evaluation of straddle-type monorail vehicle

“…Vehicle reliability is the key to ensuring a safe, punctual travel and good social order. In addition, due to the straddle type monorail vehicle unique structure (Du, Wen, Zhao, Xu, & Chen, 2017;Glickenstein, 2013) (shown in Figure 1), the subway vehicle reliability research and the development of relatively is perfect (Melo & Baptista, 2017;Yin, Wang, Qin, Hua, & Jiang, 2017),but maintenance measures are not fully suitable for Straddle-Type Monorail vehicles.…”

“…Based on an urban rail transit line operational safety, the line operational safety evaluation index system of urban transit was established (Wang yanhui, 2013), in which the line operation safety index of urban rail transit was evaluated with the method of combination weights. The operative failure distribution model was established based on selected model with a large quantity of failure data for subway vehicles (Yin et al, 2017). To perform service evaluation, an integrated process combining CONTACT Junchao Zhou zhou1987g@163.com * Zhen Yang analyzed the data; Junchao Zhou contributed analysis tools; Zixue Du wrote the paper.…”