21 Study on Vibration Characteristics of Metro Bogie …
267
(a) Axle box , transverse
(b) End of the frame, transverse
(c) Bottom of the carbody, transverse
(d) Passenger compartment floor, transverse
1750.0
2050.0
1800
1900
2000
1820 1840 1860 1880
1920 1940 1960 1980
Linear
s
0
1000
100.0
200.0
300.0
400.0
500.0
600.0
700.0
800.0
900.0
150.0
250.0
350.0
450.0
550.0
650.0
750.0
850.0
60.0
940.0
Linear
Hz
484e-9
0.50
0.10
0.20
0.30
0.40
0.05
0.15
0.25
0.35
0.45
Amplitude
g
1750.0
2050.0
1800
1900
2000
1820 1840 1860 1880
1920 1940 1960 1980
Linear
s
0
80
10.0
20.0
30.0
40.0
50.0
60.0
70.0
5.0
15.0
25.0
35.0
45.0
55.0
65.0
75.0
Linear
Hz
280e-9
0.10
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.01
0.03
0.03
0.04
0.06
0.07
0.08
0.09
Amplitude
g
1750.0
2050.0
1800
1900
2000
1820 1840 1860 1880
1920 1940 1960 1980
Linear
s
0
80
10.0
20.0
30.0
40.0
50.0
60.0
70.0
5.0
15.0
25.0
35.0
45.0
55.0
65.0
75.0
Linear
Hz
72.5e-9
0.10
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.01
0.03
0.03
0.04
0.06
0.07
0.08
0.09
Amplitude
g
Turnout impact
125Hz natural frequency
70Hz Frequency of P2 force
0
1000
100.0
200.0
300.0
400.0
500.0
600.0
700.0
800.0
900.0
150.0
250.0
350.0
450.0
550.0
650.0
750.0
850.0
60.0
940.0
Linear
Hz
1750.0
2050.0
1800
1900
2000
1820 1840 1860 1880
1920 1940 1960 1980
Linear
s
484e-9
0.50
0.10
0.20
0.30
0.40
0.05
0.15
0.25
0.35
0.45
Amplitude
g
Fig. 21.7 Transversal vibration transmission
(a) Axle box, vertical
(b) End ofthe frame, vertical
(c) Bottom of the car body, vertical
(d) Passenger compartment floor, vertical
1750.0
2050.0
1800
1900
2000
Linear
s
0
1000
100.0
200.0
300.0
400.0
500.0
600.0
700.0
800.0
900.0
150.0
250.0
350.0
450.0
550.0
650.0
750.0
850.0
60.0
940.0
Linear
Hz
484e-9
0.50
0.10
0.20
0.30
0.40
0.05
0.15
0.25
0.35
0.45
Amplitude
g
1750.0
2050.0
1800
1900
2000
Linear
s
0
1000
100.0
200.0
300.0
400.0
500.0
600.0
700.0
800.0
900.0
150.0
250.0
350.0
450.0
550.0
650.0
750.0
850.0
60.0
940.0
Linear
Hz
484e-9
0.50
0.10
0.20
0.30
0.40
0.05
0.15
0.25
0.35
0.45
Amplitude
g
1750.0
2050.0
1800
1900
2000
Linear
s
0
80
10.0
20.0
30.0
40.0
50.0
60.0
70.0
5.0
15.0
25.0
35.0
45.0
55.0
65.0
75.0
Linear
Hz
1.21e-6
0.10
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.01
0.03
0.03
0.04
0.06
0.07
0.08
0.09
Amplitude
g
1750.0
2050.0
1800
1900
2000
1820 1840 1860 1880
1920 1940 1960 1980
1820 1840 1860 1880
1920 1940 1960 1980
1820 1840 1860 1880
1920 1940 1960 1980
1820 1840 1860 1880
1920 1940 1960 1980
Linear
s
0
80
10.0
20.0
30.0
40.0
50.0
60.0
70.0
5.0
15.0
25.0
35.0
45.0
55.0
65.0
75.0
Linear
Hz
1.64e-6
0.10
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.01
0.03
0.03
0.04
0.06
0.07
0.08
0.09
Amplitude
g
500Hz natural frequency band
350Hz natural frequency band
800Hz natural frequency band
400Hz natural frequency band
Within 3Hz, Suspension modal frequency
Fig. 21.8 Vertical vibration transmission