Motor train unit part service life analysis algorithm

A technology for analyzing algorithms and components, applied in the field of life analysis algorithms for EMU components, and can solve problems such as affecting safe and stable operation, inability to estimate the life of EMU components, and EMU component failures.

Inactive Publication Date: 2015-06-03
INST OF COMPUTING TECH CHINA ACAD OF RAILWAY SCI +1
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Problems solved by technology

[0010] The invention proposes an algorithm for analyzing the life of EMU components, which solves the problems in the prior art...

Method used

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  • Motor train unit part service life analysis algorithm
  • Motor train unit part service life analysis algorithm
  • Motor train unit part service life analysis algorithm

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Embodiment

[0059] The part of the EMU to be calculated is the life of the parts of the "inner door". Taking the 2C type car as an example, there are n=32 parts whose type is "in-vehicle facility" and whose part is "inner door". An initial mileage t from the EMU 0 or an initial time t 0 Start to record the failure records of r=10 consecutive failures, the type is "in-vehicle facility", and the location is "internal door", and record the mileage or time t of each failure i , i=1, 2, 3,..., r; the sample value is determined by t i -t 0It is concluded that this sampling method is censored with a fixed number of replacements. It is also possible to obtain an initial mileage t from the EMU 0 or an initial time t 0 Start to record the mileage or time t of the EMU when all fault data occurs within the time t i , and also assume that at t 0 In the interval from t to t, a total of r failures occurred (t i i -t 0 It is obtained that this sampling method is censored with replacement timing....

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Abstract

The invention provides a motor train unit part service life analysis algorithm. An exponent distribution sample and a Weibull distribution sample are subjected to service life estimation through a replacement fixed-number truncation test and a replacement timed truncation test, and then the distribution types are calculated. The motor train unit part service life analysis algorithm has the advantages that the service life of motor train unit parts can be estimated, abnormal situation in the operating process of a motor train unit is effectively avoided, and safe and continuous operation of the motor train unit is facilitated.

Description

technical field [0001] The invention relates to the technical field of liquid level measuring tools, in particular to an algorithm for analyzing the life of components of an EMU. Background technique [0002] The service life of EMU components can be defined as the accumulative use time of the EMU components when they break down, or the accumulative mileage of the EMU components equipped with the components. Therefore, the life of EMU components can be measured in units of time or in units of distance. Therefore, the life analysis of EMU components can be carried out from two perspectives of time and space. [0003] The routine maintenance and treatment method of EMU components is to repair or replace them only when abnormalities are found, which will bring serious hidden dangers to the safe operation of EMUs. Therefore, estimating the service life of EMU components can effectively avoid the occurrence of abnormal conditions during the operation of EMUs. [0004] The life...

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Application Information

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IPC IPC(8): G06F19/00
Inventor 王远翔王辉贾志凯张惟皎李樊王治管江旗
Owner INST OF COMPUTING TECH CHINA ACAD OF RAILWAY SCI
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