NOISE AND VIBRATION CONTROL Episode 4 pptx
NOISE AND VIBRATION CONTROL Episode 4 pptx
... 32
34
36 36
35
36
36
36
37
36 36
37
37
38
36
38
41
43
44
41
44
45
47
48
45
48
49
50
51
50 52
53 54
55
54
56
57
58
59
58
60
61
62
63
45
48
49
51
52
Table 4- 13. Transmission Loss (in dB) of Type 2 Floor-Ceiling ... (in.)
(Hz)
1
1
1
14
2
31
33
38
41 44
16
63 39
42 44 46
48
125
41
43 46 48
51
250 44
48
51 54
58
500 50
54 57
60
64
1000
56
61 64
66
69...
NOISE AND VIBRATION CONTROL Episode 6 pptx
... Width
(inches)
Octave Band Center Frequency (Hz)
63
125
250
500
1K
6
18 13
8
4
8
16
10
6
2
10
14
9
3
2
12
13
8
4
1
16
10
6
2
1
20
9
5
2
1
24
8
4
1
0
28
7
3
1
0
32
6
2
1
0
36
5
2
1
0
48
4
1
0
0
72
2
1
0
0
1
1
1
0
0
0
0
0
0
0
0
0
7-8
TM ... the architect and engineer
to problems of noise and vibration. This is an
important first step to noise control. Without
awareness, t...
NOISE AND VIBRATION CONTROL Episode 11 pptx
... Overall PWL, in dB
Band
(Hz)
Casing
Inlet
Exhaust
31
10 19
12
63
7
18
8
125
5
17
6
250
4
17
6
500
4
14
7
1000
4
8
9
2000
4
3
11
40 00
4
3
15
8000
4
6
21
A-weighted,
2
dB(A)
0
4
(DRPR) (splash-proof ... Axis
Frequency
Band
135° and
(Hz)
0º 45 ° 60° 90
oa
larger
a
31 8
5
2
-2 -3
63 8
5
2
-3 -4
125 8
5
2
-4 -6
250
8
6 2
-6 -8
500 9 6 2
-8 -10
1000
9
6
1
-10 -13
2000 10
7 0...
NOISE AND VIBRATION CONTROL Episode 12 pps
... 1992
Beranek, Leo L., Noise & Vibration Control, The Institute of Noise Control Engineering, Washington, DC,
1988
Schaffer, Mark E., A Practical Guide to Noise and Vibration Control for HVAC Systems, ... to
Glossary-l
TM 5-805 -4/ AFJMAN 32-1090
BIBLIOGRAPHY
Harris, Cyril M., Noise Control in Buildings, McGraw-Hill, New York, NY 19 94
Jones, Robert S., Noise &...
NOISE AND VIBRATION CONTROL Episode 1 docx
... Specification 9 -4
B-1. Bandwidth and Geometric Mean Frequency of Standard Octave and 1/3 Octave Bands B-6
UFC 3 -45 0-01
15 May 2003
1
UNIFIED FACILITIES CRITERIA (UFC)
NOISE AND VIBRATION CONTROL ... System 9 -4 9-1
Sound Levels for Equipment 9-5 9-1
CHAPTER 10. NOISE AND VIBRATION MEASUREMENTS
Objective 10-1 10-1
Sound and Vibration Instrumentation 10-2...
NOISE AND VIBRATION CONTROL Episode 2 docx
... Shown.
Distance
(ft.)
1/2
1
2
4
6
8
10
12
16
Normal Raised
74
80
68
74
62
68
56
62
53
59
50
56
48
54
46
52
44
50
Voice Level
Very Loud
86
80
74
68
65
62
60
58
56
Shouting
92
86
80
74
71
68
66
64
62
SIL is arithmetic ... "D" (in ft.) from Equipment
"R"
(ft.
2
)
3
5
10
15
20 30 40 60 80
100
-3
-4
-4
-4
-4
-4
-4
-4
-4
200
-5
-6
-7 -7
-7
-7
-7 -7 -7...
NOISE AND VIBRATION CONTROL Episode 3 doc
... Partitions.
Octave
Frequency
Band
Type
Type
Type
Improvements
(Hz)
1
2
3
A
B
31
4
9
6 2
2
63
10 16
12
2 2
125
17 24
20
3
2
250
26
34
30
3 3
500
34
42 39
4 4
1000 40
48
46
4 4
2000
46 46
52
3
5
40 00
44
48
50 3 6
8000
48
52
54
3
5
STC 37 44 41
3
3
Notes :
Type ... 25
- 14
+3
3.7
-6
31
-15
+2
4. 7
-7
40
-16
+1
6.1
-8
50
-17
0
7.7
-9
63
-18
-1
9.7
-10
80
-19
-2
1...
NOISE AND VIBRATION CONTROL Episode 5 ppt
... 39
40
112
39
39
39 39
39
39
40 40 41
125
40
40
40
40 40
40 41
41
42
140
41
41
41
41
41
41
42 42
43
160 42 42 42
42
42 42 43 44 45
180
43
43
43
43
43
44 44
45
46
200
44
44
44
44
44
45
45
46
48
225 ... 44
44
44
44
45
45
46
48
225 45 45 45 45 45 46 46
47
49
250
46
46
46 46
46
47 47
49
50
280 47 47 47...
NOISE AND VIBRATION CONTROL Episode 7 potx
... 5
3
5
11
23
31
34
19 13
Drop 7
5
9
16
32
41
43
24 16
10
6
15
22 37
52 53
35 23
Standard 3
3
6
13
23
33 33
23
14
Pressure 5
4 11
20 37
44 44
36 22
Drop 7
6
13
28 42
47 47
45 30
10 8 15
35
50
56 57
57 40
Octave ... fan and
the diffusers are determined.
(1) Fan Lw. From equation 10-5 and table
10-13.
Octave Band Center Frequencies
63 125 250 500 1k 2k 4k
Fan Kw
47 43 39...
NOISE AND VIBRATION CONTROL Episode 8 pdf
... re-
quired to achieve near inaudibility. The noise and
vibration control methods given here are designed
to be simple to follow and to put into use. If these
methods and recommendations are carried out,
with ... feet.
8-12
TM 5-805 -4/ AFJMAN 32-1090
Table 8-7. Vibration Isolation Mounting for Boilers.
8-15
TM 5-805 -4/ AFJMAN 32-1090
Table 8-12. Vibration Isolation Mounting f...
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