Noise and Vibration Control Engineering

... 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, ... Engineering Noise Control, Unwin Hyman, Boston, MA 1988 Harris, Cyril M., Shock & Vibration Handbook, 3rd Edition, McGraw-Hill, New York, NY 1988 Beranek, Leo L & Ver, I...

Ngày tải lên: 13/08/2014, 05:22

... 4 -10 4 -11 4 -13 4 -14 4 -15 4 -16 4 -17 4 -18 4 -18 4 -19 4 -19 4-20 5-3 5-4 5-4 5-5 5-8 5-9 5 -13 5 -15 5 -15 7-3 7-5 7-6 7-7 7-8 7-9 7 -10 8-2 8-8 8-9 8 -12 8 -13 8 -14 8 -15 8 -16 8 -17 8 -18 8 -19 8-20 8- 21 9-3 ... 1- 1 1- 2 1- 3 1- 4 1- 5 1- 6 1- 1 1- 1 1- 1 1- 1 1- 1 1- 1 Noise and Vibration Criteria General Noise Criteria In Buildings ... MECHANICAL AND ELE...

Ngày tải lên: 13/08/2014, 05:22

... -18 320 0 -10 -13 -16 -17 -18 -19 -19 -20 -20 5000 -10 -14 -17 -18 -20 -21 -21 -22 -23 7000 -10 -14 -16 -19 -21 -22 -23 -24 -25 10000 -10 -14 -19 -21 -22 -23 -24 -25 -26 20 000 -10 -15 -20 -22 -24 ... 4 5 6 1000 7 0 20 00 9 10 10 10 320 0 10 11 12 12 12 5000 11 12 13 14 14 15 7000 10 12 13 14 15 15 16 10000 11 13 14 15 16 17 10 20 000 12 14 16 18 19 21 22 Infinite 13 16 19 22 25...

Ngày tải lên: 13/08/2014, 05:22

... -3 -4 15 20 -12 2.9 3. 7 -5 -6 25 -14 31 -15 4.7 -7 -8 40 -16 50 -17 -9 -10 63 -18 80 -11 100 -19 -29 0 .38 0.54 +1 6.1 0.75 7.7 1.0 -1 1 .3 4-2 +3 +2 -2 9.7 12.0 "C" (dB) - 13 TM 5-805-4/AFJMAN 32 -1090 ... 5-805-4/AFJMAN 32 -1090 Table 4-6 Transmission Loss (in dB) of Stud-Type Partitions Octave Frequency Band (Hz) Type Type Type 31 63 10 125 Improvements A B 2 16 12 2 17 24 20 2...

Ngày tải lên: 13/08/2014, 05:22

... 24 24 31 63 125 250 500 1000 2000 40 00 8000 29 35 37 38 43 48 53 57 61 33 37 38 41 47 53 57 61 64 35 38 40 44 49 54 59 63 67 37 39 41 46 51 56 61 64 68 38 40 42 48 53 57 62 65 69 STC 4- 18 12 48 ... Ceiling (in.) 24 15 18 24 12 31 63 125 250 500 1000 2000 40 00 8000 31 37 39 41 46 52 57 62 66 35 39 41 44 50 57 62 67 71 38 41 43 48 53 59 64 69 74 40 42 44 50...

Ngày tải lên: 13/08/2014, 05:22

... 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 60 61 62 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 76 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 60 62 63 64 65 66 67 ... 49 50 52 53 54 55 56 57 58 59 61 63 64 65 66 68 69 70 72 73 75 76 78 79 81 82 83 85 86 36 37 38 39 40 41 42 43 44 45 46 48 49 50 51 52 53 54 55 56 57 5...

Ngày tải lên: 13/08/2014, 05:22

... of the architect and engineer to problems of noise and vibration This is an important first step to noise control Without awareness, the noise problem is ignored in the design, and later problems ... compared against the indoor noise criterion applicable to the neighbor’s building f Available noise control treatments and operational changes are considered (set 6- 6),...

Ngày tải lên: 13/08/2014, 05:22

... Standard Pressure Drop 10 11 13 15 13 20 28 35 23 37 42 50 33 44 47 56 33 44 47 57 23 36 45 57 14 22 30 40 Octave Band Center Frequencies 63 125 250 500 1k 2k 4k Lw of One Diffuser N/A 43 37 ... comparing isolators and their range of static deflections and natural frequencies as applied to two equipment categories (rotary and reciprocating) and two equipment locations (noncritic...

Ngày tải lên: 13/08/2014, 05:22

... Assembly 8- 14 TM 5 -80 5-4/AFJMAN 32-1090 Table 8- 7 Vibration Isolation Mounting for Boilers 8- 15 TM 5 -80 5-4/AFJMAN 32-1090 Table 8- 8 Vibration Isolation Mounting for Propeller-Type Cooling Towers 8- 16 ... Motor-Pump Assemblies 8- 18 TM 5 -80 5-4/AFJMAN 32-1090 Table 8- 11 Vibration Isolation Mounting for Steam-TurbineDriven Rotary Equipment 8- 19 TM 5 -80 5-4/AFJMAN 32-...

Ngày tải lên: 13/08/2014, 05:22

... situations: noise and vibration in buildings, and community noise or measurements This chapter discusses these subjects 10-2 Sound And Vibration Instrumentation Instrumentation for measuring sound and vibration ... is easier to turn on and off equipment and extraneous sources are at a minimum 10-4 Measurement Of Noise And Vibration Outdoors The consideration for me...

Ngày tải lên: 13/08/2014, 05:22

... characteristics and the sound pressure level data have become detached, and the noise control analyst or engineer has no concrete data for designing noise control treatments Sones and phons are ... manual, and their use for noise control purposes is of little value When offered data in sones and phons, the noise control engineer should request the original octave or...

Ngày tải lên: 13/08/2014, 05:22

... the noise and noise control of ducted ventilation systems b Noise reduction from fan housing The fan housing and its nearby connected ductwork radiate fan noise into the fan room The amount of noise ... gas and liquid fuel In TM 5-805-9/AFM 88-20/NAVFAC DM-3.14, details are given for handling these data and for designing noise control treatments for small power plants...

Ngày tải lên: 13/08/2014, 05:22

... of spur gears.1 Proc Inst Mech Eng., Vol 172, 1958, pp 87-112 Niemann, G and Baethge, J., 'Transmission error, tooth stiffness, and noise of parallel axis gears.' VDI-Z, Vol 2, 1970, No and No ... gears.' VDI-Z, Vol 2, 1970, No and No Palmer, D and Munro, R.G., 'Measurements of transmission error, vibration and noise in spur gears.' British Gear Association Congress, 1995,...

Ngày tải lên: 13/12/2013, 03:15

... Understanding Gear Noise, J Derek Smith Chains for Power Transmission and Material Handling: Design and Applications Handbook, American Chain Association Corrosion and Corrosion Protection Handbook, ... Couplings and Joints: Design, Selection, and Application, Second Edition, Revised and Expanded, Jon R Mancuso 122 Thermodynamics: Processes and Applications, Earl Logan, Jr 12...

Ngày tải lên: 13/12/2013, 03:15