Axle ageing analysis method of high speed train on the basis of axle temperature data

A technology for aging analysis and high-speed trains, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as low accuracy and time-consuming axle fault detection

Active Publication Date: 2015-11-11
XIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a high-speed train axle aging analysis method based on ax...

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  • Axle ageing analysis method of high speed train on the basis of axle temperature data
  • Axle ageing analysis method of high speed train on the basis of axle temperature data
  • Axle ageing analysis method of high speed train on the basis of axle temperature data

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Embodiment

[0126] A high-speed train axle aging analysis method based on axle temperature data of the present invention is specifically implemented according to the following steps:

[0127] Step 1. Preprocessing the train speed and axle temperature data:

[0128] Step (1.1), supplement of data missing points:

[0129] Collect train speed spe(i) and shaft temperature zw(i), where i is the corresponding sampling time point, i=20, as shown in Table 1 and Table 2, draw a schematic diagram of the initial shaft temperature signal curve,

[0130] Table 1: Sampling data of shaft temperature zw(i)

[0131] sampling time point

1

2

3

4

5

6

7

8

Shaft temperature

28.67249

30.28081

30.28081

30.28081

31.88913

31.88913

0

sampling time point

9

10

11

12

13

14

15

16

Shaft temperature

33.49745

35.10577

35.10577

36.71409

36.71409

36.71409

38.32241

...

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Abstract

The invention discloses an axle ageing analysis method of a high speed train on the basis of axle temperature data. The axle ageing analysis method is implemented according to the following steps: 1) preprocessing train speed and the axle temperature data; 2) carrying out smooth processing on the axle temperature data preprocessed in the step 1); 3) calculating a rise rate of the axle temperature of the train; and 4) carrying out ageing analysis on the axle by the rise rate of the axle temperature obtained in the step 3). The axle ageing analysis method solves the problems of time consumption and low precision of axle fault detection in the prior art.

Description

technical field [0001] The invention belongs to the technical field of fault diagnosis, and in particular relates to a high-speed train axle aging analysis method based on axle temperature data. Background technique [0002] With the rapid development of high-speed rail, ensuring the operation order of EMUs and improving the safety and reliability of EMUs have attracted widespread attention. The axle is the key load-bearing part of the locomotive bogie, and it is an important part that affects the safety of the train. If the axle is aging and damaged and expands, it will cause the train to derail due to the broken axle, which will bring catastrophic consequences. Therefore, its safe operation is directly related to Safe production of railway transportation. At present, axle fault detection mainly includes two aspects, namely based on axle temperature threshold and based on manual inspection. [0003] The first method is to set the corresponding axle temperature threshold p...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 谢国叶闽英马维纲黑新宏赵金伟钱富才
Owner XIAN UNIV OF TECH
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