Pressure-data-based fault classification and diagnosis method of brake pipe of high-speed train
A technology of pressure data and diagnostic methods, which is applied in the direction of railway vehicle testing, mechanical component testing, machine/structural component testing, etc., and can solve problems such as low accuracy and time-consuming brake pipe failure analysis
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[0146] The present invention is a high-speed train brake pipe fault classification and diagnosis method based on pressure data, the flow chart is as follows figure 1 As shown, the specific steps are as follows:
[0147] Step 1 is specifically implemented according to the following steps:
[0148] Step (1.1), supplement of data missing points:
[0149]Collect brake pipe pressure p(i), where i is the corresponding sampling time point, i=23, as shown in Table 1 and Table 2, draw a schematic diagram of the initial brake pipe pressure signal curve,
[0150] Table 1: Sampling data of brake pipe pressure p(i)
[0151] sampling time point
1
2
3
4
5
6
7
8
brake pipe pressure
9
8.6
8.4
8.7
9.4
9.8
0
sampling time point
9
10
11
12
13
14
15
16
brake pipe pressure
10.1
9.8
9.5
9
8.7
8.5
8.4
8.8
sampling time point
17
18
19
20
21
22
23...
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