A high-speed train axle aging analysis method based on axle temperature data

[0120] 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:

[0121] Step 1. Preprocessing the train speed and axle temperature data:

[0122] Step (1.1), supplement of data missing points:

[0123] 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,

[0124] Table 1: Sampling data of shaft temperature zw(i)

[0125] 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

38.32241

sampling time poin...