PSI - Issue 59

O. Fomin et al. / Procedia Structural Integrity 59 (2024) 636–641 O. Fomin, S. Kara, D. Turovets, S. Shevchenko, Y. Polupan / Structural Integrity Procedia 00 (2023) 000 – 000

640

5

Table 2. Results of determination of stresses during impact tests from the opposite side to the device for transporting semi-trailers on a platform car and an installed semi-trailer in a loaded state. Channel Unit of measurement hit number 1 2 3 4 5 6 7 8 9 10 1 13 9.68 7.02 -15.57 11.44 -16.39 18.38 -28 45.23

-140.74 92.41 23.37 25.96 -43.24 -103.12 96.28 169.03 -68.97 -34.8 45.53 36.98 -111.3 241.7

2 3 4 5 6 7 8 9

38.55 9.71 20.23 -15.35 -40.46 23.28 10.81 -31.56 -11.55 14.06 11.71 -39.22 36.74

44.59 13.15 17.99 -20.08 -51.92 34.05 7.66 -37.4 -14.47 17.59 15.62 -51.9 30.54

46.98 13.94 -16.32 -22.41 -56.27 35.65 -38.73 -16.03 11.82 17.12 -56.39 30.13 8.44

66.83 16.86 -29.72 -73.38 54.43 -50.36 -20.78 30.78 -23.19 -71.05 57.01 -19 35.6

68.55 16.36 -19.08 -28.29 -70.2 52.17 -47.69 -19.82 23.41 -20.82 -66.5 36.3

67.35 17.12 -20.59 -29.99 -74.81 51.67 -48.39 -20.87 31.19 -20.03 -69.98 69.75 33

70.67 18.15 -19.13 -31.41 -77.87 66.11 41.54 -50.5 -22.07 25.37 -22.2 -73.03 73.92

78.76 19.12 22.75 -32.61 -78.48 55.67 81.52 -46.38 -22.91 31.55 18.12 -77.58 75.07

100.82

23.3

-20.47 -37.74 -93.5 80.61 97.65 -47.44 -28.2 34.42 30.67 -93.27 129.31

MPa

10 11 12 13

Auto coupling

tone

68.6

According to the registered data of dynamic processes, the indicators of the running dynamic qualities of the car with a stable saddle with an installed semi-trailer in the loaded state were calculated. The results are given in table 3 and 4. Table 3. Results of running dynamic tests platform car 13- 9004М from device for transportation of semi-trailers on a platform wagon and an installed semi-trailer in a loaded state on the Darnytsia - Nizhyn section. Monitored characteristics Normative value The value of the indicator at a speed of km/h Unrecognized honesty, % 20 30 40 50 60 70 80

The coefficient of stability margin of the wheel from derailment on straight and curved sections of the track Coefficient of horizontal dynamics (frame force in parts P0 (Hp/P0), from the wheel pair to the trolley frame) Coefficient of vertical dynamics of the suspended mass of the cart, Kd, Coefficient of vertical dynamics of the unreinforced trolley frame, Kdn Frame forces Nr, t

At least 1.3

1.9

1.85

1.75

1.67

1.62

1.48

1.46

2.1

-

0.38

0.47

0.5

0.69

0.9

1.1

1.3

2.1

Not more than 0.4 Not more than 0.75 Not more than 0.90

0.07

0.09

0.1

0.13

0.18

0.22

0.26

2.1

0.16

0.19

0.2

0.22

0.25

0.28

0.3

2.1

0.24

0.26

0.29

0.32

0.37

0.43

0.46

2.1

Table 4. Results of running dynamic tests platform car 13- 9004М from device for transportation of semi-trailers on a platform wagon and an installed semi-trailer in a loaded state at the Nizhyn - Darnytsia section.

The value of the indicator at a speed of km/h

Unrecognized honesty, %

Normative value

Monitored characteristics

20

30

40

50

60

70

80

The coefficient of stability margin of the wheel from derailment on straight and curved sections of the track Coefficient of horizontal dynamics (frame force in parts P0 (Hp/P0), from the wheel pair to the trolley frame) Coefficient of vertical dynamics of the suspended mass of the cart, Kd, Coefficient of vertical dynamics of the unreinforced trolley frame, Kdn Frame forces Nr, t

At least 1.3

1.92

1.83

1.78

1.65

1.6

1.49

1.47

2.1

-

0.39

0.45

0.52

0.72

0.95

1.2

1.32

2.1

Not more than 0.4 Not more than 0.75 Not more than 0.90

0.07

0.09

0.1

0.14

0.19

0.24

0.26

2.1

0.18

0.20

0.23

0.24

0.27

0.31

0.32

2.1

0.26

0.27

0.31

0.34

0.38

0.46

0.48

2.1