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Method and apparatus for predicting life of wheel set

A technology for life prediction and wheelset, which is used in prediction, railway vehicle testing, data processing applications, etc., and can solve problems such as poor accuracy

Inactive Publication Date: 2015-04-15
上海杰之能软件科技有限公司
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  • Application Information

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Problems solved by technology

[0002] In the prior art, the service life of the wheelset of the EMU is generally obtained based on theoretical estimation before the EMU is put into use. Obviously, the accuracy of the life prediction result of the theoretical estimation is relatively poor, so it is difficult to estimate the service life of the EMU. Play a better reference value in the actual operation

Method used

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  • Method and apparatus for predicting life of wheel set
  • Method and apparatus for predicting life of wheel set
  • Method and apparatus for predicting life of wheel set

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Embodiment 1

[0042] In the first embodiment, in step S101, the wear analysis can be performed by determining the wear rate of the wheel diameter and the wear rate of the rim thickness of the wheel set within the preset time period.

[0043] Specifically, please refer to figure 2 , the wear analysis includes steps S200 and S201.

[0044]In step S200, the preset time period is divided into a plurality of intervals, and the wear rate of the wheel diameter and the thickness of the wheel rim are calculated for each interval by using the diagnostic data and turning data of the wheel set.

[0045] For example, the preset time period is time t 1 to time t n , the preset time period can be divided into n-1 intervals, respectively interval t 1 to t 2 , interval t 2 to t 3 ...Interval t n-2 to t n-1 and interval tn-1 to t n , then the time t can be obtained first 1 , t 2 ... t n-2 , t n-1 and time t n The diameter of the wheel is D(t 1 ), D(t 2 )…D(t n-2 ), D(t n-1 ) and D(t n ),...

Embodiment 2

[0057] In this embodiment, the wheel set data also includes the mileage data of the wheel set, then, in step S101, by determining the wheel diameter size, wheel Wear analysis was performed as a function of edge thickness and mileage traveled.

[0058] Specifically, the determination of the functional relationship between the wheel diameter, rim thickness, and mileage of the wheel set within the preset time period includes: respectively determining the relationship between the wheel diameter and the mileage traveled, Carry out linear regression analysis between the rim thickness and the mileage traveled, and between the wheel diameter and the rim thickness to establish a linear function model among the wheel diameter value, the rim thickness and the mileage traveled.

[0059] For example, if the thickness of the rim is T, the diameter of the wheel is D, and the mileage traveled is L, then the distance between the diameter of the wheel and the mileage traveled, and the distance ...

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Abstract

The invention provides a method and apparatus for predicting life of a wheel set. The method comprises: updating wheel set data in a preset time period, the wheel set data comprising diagnosis data and lathing data of the wheel set; according to the wheel set data in the preset time period, performing abrasion analysis on shape parameters of the wheel set, the shape parameters comprising the size of a wheel diameter and the size of a wheel rim; and according to the result of the abrasion analysis, determining the residual service life of the wheel set. Through the method and apparatus provided by the invention, a quite accurate prediction result of the service life of the wheel set on the basis of actual operation conditions of the wheel set can be obtained.

Description

technical field [0001] The invention relates to the technical field of EMU maintenance, in particular to a wheel set life prediction method and device. Background technique [0002] In the prior art, the service life of the wheelset of the EMU is generally obtained based on theoretical estimation before the EMU is put into use. Obviously, the accuracy of the life prediction result of the theoretical estimation is relatively poor, so it is difficult to estimate the service life of the EMU. It can play a better reference value in the actual operation. [0003] Therefore, it is necessary to propose a new wheel set life prediction method and device to obtain a more accurate wheel set life prediction result. Contents of the invention [0004] The technical problem solved by the invention is to provide a new wheel set life prediction method and device to obtain the wheel set service life prediction result based on the actual operation of the wheel set. [0005] An embodiment o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/10G06Q10/04
Inventor 冯骞杨韩雁
Owner 上海杰之能软件科技有限公司
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