Unlock document.
This document is partially blurred.
Unlock all pages and 1 million more documents.
Get Access
Courtesy of CRC Press/Taylor & Francis Group
Wavelength
Distance
A
tmospheric
pressure
Pmax
Pmin
011x001.eps
Courtesy of CRC Press/Taylor & Francis Group
A
BD
C
E
011x002.eps
Courtesy of CRC Press/Taylor & Francis Group
A
B
E
CD
011x003.eps
Courtesy of CRC Press/Taylor & Francis Group
140
120
100
80
60
SPL
40
20
0
20 100 1000
Frequency (Hz)
10,000
011x004.eps
Courtesy of CRC Press/Taylor & Francis Group
10
(a)
(c) (d)
(b)
20
30
40
SPL
50
60
70
1000 2000 3000
Frequency (Hz)
4000 6000
10
20
30
40
SPL
50
60
70
1000 2000 3000
Frequency (Hz)
4000 6000
011x005.eps
Courtesy of CRC Press/Taylor & Francis Group
4
2
3
7
5
4
16
2D model
side view
011x006.eps
Courtesy of CRC Press/Taylor & Francis Group
110
100
90
80
70
60
31.5 63 125 250 500 1600
Center frequency (Hz)
5000 16,000
SPL
50
40
30
20
10
A
B
C
011x0 07.eps
Courtesy of CRC Press/Taylor & Francis Group
110
100
90
80
70
60
31.5 63 125 250 500 1600
Center frequency (Hz)
5000 16,000
SPL
50
40
30
20
10
A
B
C
011x008.eps
Courtesy of CRC Press/Taylor & Francis Group
011x009.tif
Courtesy of CRC Press/Taylor & Francis Group
011x010.tif
Courtesy of CRC Press/Taylor & Francis Group
4
3.8
3.6
3.4
3.2
3
2.8
2.6
2.4
2.2
A (8) = 2.0 m/s2
A (8) = 1.8 m/s2
A (8) = 1.6 m/s2
A (8) = 1.4 m/s2
A (8) = 1.2 m/s2
A (8) = 1.15 m/s
2
A (8) = 1.0 m/s2
A (8) = 0.8 m/s2
A (8) = 0.6 m/s2
A (8) = 0.5 m/s2
A (8) = 0.4 m/s2
A (8) = 0.2 m/s2
2
(kaw)max (m/s2)
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0:00
0:30
1:00
1:30
2:00
2:30
3:00
3:30
4:00
4:30
5:00
5:30
Exposure time (hh:mm)Example:
1.2 m/s2 for 4 hours 30 mins
gives A (8) = 0.9 m/s2
6:00
6:30
7:00
7:30
8:00
8:30
9:00
9:30
10:00
011x011.eps
Courtesy of CRC Press/Taylor & Francis Group
(a) (b)
011x012.eps
Courtesy of CRC Press/Taylor & Francis Group
1000
800
600
Sum of impacts (n)Impacts count (n)
400
200
0
800
100 40
Fixed seat
Suspension seat
Fixed seat
Suspension seat
Un
title
200
150
100
50
01.6 2.2 3.4 4.6 5.8 7.0 8.2 9.4 10.6 11.8
0246
Impact (g)
Impact (g)
81
01
2
011x013.eps
