Admin
مدير المنتدى
عدد المساهمات : 18992
التقييم : 35482
تاريخ التسجيل : 01/07/2009
الدولة : مصر
العمل : مدير منتدى هندسة الإنتاج والتصميم الميكانيكى
 |  موضوع: كتاب Noise and Vibration Control الخميس 21 يونيو 2012, 12:22 am | |
| 
أخوانى فى الله
أحضرت لكم كتاب
Noise and Vibration Control
UNIFIED FACILITIES CRITERIA (UFC)
ويتناول الموضوعات الأتية :
Paragraph Page
CHAPTER 1. GENERAL
Purpose . 1-1 1-1
Scope 1-2 1-1
References 1-3 1-1
Noise Estimates 1-4 1-1
English, Metric Units 1-5 1-1
Explanation of Abbreviation and Terms . 1-6 1-1
2. Noise and Vibration Criteria
General . 2-1 2-1
Noise Criteria In Buildings . 2-2 2-1
Vibration Criteria In Building . 2-3 2-4
3. Sound Distribution Indoors
General . 3-1 3-1
Sound Pressure Level in a Room . 3-2 3-1
Room Constant . 3-3 3-2
Sample Calculations . 3-4 3-4
4. Sound Isolation Between Rooms
Objective . 4-1 4-1
Sound Transmission Loss (TL), Noise Reduction (NR) & Sound Transmission Class (STC) 4-2 4-1
Transmission Loss-Walls, Doors, Windows 4-3 4-4
Transmission Loss of Floor-Ceiling Combinations . 4-4 4-6
5. Sound Propagation Outdoors
Introduction . 5-1 5-1
Distance Effects 5-2 5-1
Atmospheric Effects . 5-3 5-4
Terrain and Vegetation 5-4 5-6
Barriers . 5-5 5-7
Reception of Outdoor Noise Indoors 5-6 5-11
Combined Effects, Sample Calculation 5-7 5-12
Source Directivity 5-8 5-13
6. Airborne Sound Control
Introduction . 6-1 6-1
Indoor Sound Analysis . 6-2 6-1
Outdoor Sound Problem and Analysis . 6-3 6-2
Quality of Analysis Procedure . 6-4 6-2
Noise Control Treatments 6-5 6-3
7. Air Distribution Noise for Heating, Ventilating and Air Conditioning SYSTEMS
Introduction . 7-1 7-1
General Spectrum Characteristics of Noise Sources 7-2 7-1
Specific Characteristics of Noise Sources 7-3 7-1
Control of Fan Noise in a Duct Distribution System 7-4 7-3
Procedure for Calculating Noise Control Requirements for an Air Distribution System 7-5 7-7
Calculation Example 7-6 7-9
8. Vibration Control
Introduction . 8-1 8-1
Vibration Isolation Elements 8-2 8-1
Mounting Assembly Types . 8-3 8-3
Tables of Recommended Vibration Isolation Details . 8-4 8-6
Vibration Isolation-Miscellaneous 8-5 8-10
9. Mechanical Noise Specifications
Objective . 9-1 9-1
General Considerations
This manual supersedes TM 5-805-4/AFM 88-37/NAVFAC DM 3.10, dated 30 December 1983, recind DD Forms 2294, 2295, 2296, 2297, 2298,
2299, 2300, 2301, 2302, 2303, dated October 1983TM 5-805-4/AFJMAN 32-1090
2
Paragraph Page
Partitions and Enclosures . 9-3 9-1
Mufflers and Duct Lining for Ducted Ventilation 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 10-1
Measurement of Noise and Vibration in Buildings . 10-3 10-2
Measurement of Noise and Vibration Outdoors . 10-4 10-2
APPENDIX A. REFERENCES
B. BASICS OF ACOUSTICS
C. SOUND LEVEL DATA FOR MECHANICAL AND ELECTRICAL EQUIPMENT
GLOSSARY
BIBLIOGRAPHY
List of Figures
Page
FIGURE 2-1. Noise Criterion (NC) curves 2-2
2-2. Room Criterion (RC) curves 2-3
2-3. Approximate Sensitivity and Response of People to Feelable Vibration 2-6
2-4. Vibration Criteria for Damage Risk to Buildings 2-7
2-5. Vibration Criteria for Sensitive Equipment in Buildings 2-8
2-6. Vibration Acceleration Levels of a Large Vibrating Surface that Will Produce Radiated Sound Levels 2-9
Into a Room Approximating the Sound Levels of the NC Curves
3-1. Approximate Relationship Between Relative Sound Pressure Level (REL SPL) and Distance to a Sound 3-2
Source for Various Room Constant Values
3-2. Room Constant Estimate 3-5
4-1. Improvement in Transmission Loss Caused by Air Space Between Double Walls Compared to Single 4-3
Wall of Equal Total Weight, Assuming no Rigid Ties Between Walls
4-2. Natural Frequency of a Double Wall With an Air Space 4-4
4-3. Schematic Illustration of Flanking Paths of Sound 4-5
4-4. Typical Floating Floor Construction 4-20
4-5. Suggested Applications and Details of Floating Floors for Improvement of Airborne Sound Transmission Loss 4-21
4-6. Structureborne Flanking Paths of Noise (Paths 2 and 3) Limit the Low Sound Levels Otherwise 4-22
Achievable With High-TL Floating Floor Construction (Path 1)
4-7. Nonflat Concrete Floors 4-22
5-1. Inverse Square Law of Sound Propagation 5-2
5-2. Downwind sound diffraction 5-6
5-3. Upwind Sound Diffraction 5-6
5-4. Effects of Temperature Gradients on Sound Propagation 5-7
5-5. Outdoor Sound Propagation Near the Ground 5-7
5-6. Parameters and Geometry of Outdoor Sound Barrier 5-8
5-7. Examples of Surfaces That Can Reflect Sound Around or Over a Barrier Wall 5-10
5-8. Compound Barriers 5-11
5-9. Edge Effects at End of Barrier 5-12
5-10. Elevation Profile of Cooling Tower Used in Example 5-14
7-1. Good and Poor Air Delivery Conditions to Air Outlets 7-4
7-2. Plan View of Supply Duct for Example 7-12
8-1. Suggested Arrangement of Ribbed Neoprene Pads for Providing Resilient Lateral Restraint to a Spring 8-4
Mount
8-2. Schematic of Vibration Isolation Mounting for Fan and Drive-Assembly of Propeller-Type Cooling Tower 8-6
8-3. Schematic of a Resilient Clamping Arrangement With Ribbed Neoprene Pads 8-7
B-1. Approximate Electrical Frequency Response of the A-, B-, and C-Weighted Networks of Sound Level B-7
Meters
B-2. Transmissibility of a Simple Undamped Single Degree-of-Freedom System B-1
C-1. Sound Pressure Levels of Reciprocating Compressors at 3-ft. Distance C-2
C-2. Sound Pressure Levels of Centrifugal Compressors at 3-ft. Distance C-3
C-3. Principal Types of Cooling Towers C-6
C-4. Sound Pressure Levels of Pumps at 3-ft. Distance C-li
C-5. Sound Pressure Levels of Air Compressors at 3-ft. Distance C-13
C-6. Sound Pressure Levels of TEFC Motors at 3-ft. Distance C-22
C-7. Sound Pressure Levels of DRPR Motors at 3 ft. Distance C-23
C-8. Sound Pressure Levels of Steam Turbines at 3 ft. Distance C-24TM 5-805-4/AFJMAN 32-1090
3
List of Tables
Page
Table 2-1. Category Classification and Suggested Noise Criterion Range for Intruding Steady-State Noise as Heard 2-4
in Various Indoor Functional Activity Areas
2-2. Speech Interference Levels (SIL) That Permit Barely Acceptable Speech Intelligibility at the Distances 2-5
and Voice Levels Shown
3-1. Reduction of SPL (in dB) in Going From Normalized 3-ft. Distance and 800-ft.2 Room Constant to Any 3-3
Other Distance and Room Constant
3-2. REL SPL Values for a Range of Distances “D” and Room Constants “R”, for Use With PWL Data 3-4
3-3. Sound Absorption Coefficients of General Building Materials and Furnishings 3-6
3-4. Low Frequency Multipliers For Room Constants 3-7
3-5. Summary of Data and Calculations Illustrating Use of Equation 3-1 3-8
3-6. Summary of Data and Calculations Illustrating Use of Equation 3-2 3-9
4-1. Wall or Floor Correction Term “C” for Use in the Equation NR TL + “C” 4-2
4-2. Transmission Loss (in dB) of Dense Poured Concrete or Solid-Core Concrete Block or Masonry 4-7
4-3. Transmission Loss (in dB) of Hollow-Core Dense Concrete Block or Masonry 4-8
4-4. Transmission Loss (in dB) of Cinder Block or Other Lightweight Porous Block Material with Impervious 4-9
Skin on Both Sides to Seal Pores
4-5. Transmission Loss (in dB) of Dense Plaster 4-10
4-6. Transmission Loss (in dB) of Stud-Type Partitions 4-11
4-7. Transmission Loss (in dB) of Plywood, Lumber, and Simple Wood Doors 4-13
4-8. Transmission Loss (in dB) of Glass Walls or Windows 4-14
4-9. Transmission Loss (in dB) of Typical Double-Glass Windows, Using ¼-in.-Thick Glass Panels With 4-15
Different Air Space Widths
4-10. Transmission Loss (in dB) of a Filled Metal Panel Partition and Several Commercially Available 4-16
Acoustic Doors
4-11. Approximate Transmission Loss (in dB) of Aluminum, Steel and Lead 4-17
4-12. Transmission Loss (in dB) of Type 1 Floor-Ceiling Combinations 4-18
4-13. Transmission Loss (in dB) of Type 2 Floor-Ceiling Combinations 4-18
4-14. Transmission Loss (in dB) of Type 3 Floor-Ceiling Combinations 4-19
4-15. Transmission Loss (in dB) of Type 4 Floor-Ceiling Combinations 4-19
4-16. Approximate Improvement in Transmission Loss (in dB) When Type 5 Floating Floor is Added to Types 4-20
1 through 4 Floor-Ceiling Combinations
5-1. Molecular Absorption Coefficients, dB per 1000 ft., as a Function of Temperature and Relative Humidity 5-3
5-2. Values of Anomalous Excess Attenuation per 1000 ft. 5-4
5-3. Distance Term (DT), in dB, to a Distance of 80 ft. 5-4
5-4. Distance Term (DT), in dB, at Distances of 80 ft. to 8000 ft. 5-5
5-5. Insertion Loss for Sound Transmission Through a Growth of Medium-Dense Woods 5-8
5-6. Insertion Loss of an Ideal Solid Outdoor Barrier 5-9
5-7. Approximate Noise Reduction of Typical Exterior Wall Constructions 5-13
5-8. Location “A” Cooling Tower Problem 5-15
5-9. Location “B” Cooling Tower Problem 5-15
7-1. Plenum/Ceiling Transfer Factor 7-3
7-2. Approximate Natural Attenuation in Unlined Sheet-Metal Ducts 7-5
7-3. Attenuation in Lined Ducts 7-6
7-4. Power Level Loss at Branches 7-7
7-5. End Reflection Loss 7-8
7-6. Losses Caused by Duct Elbows 7-9
7-7. Representative IL Values for Sound Attenuators 7-10
8-1. General Types and Applications of Vibration Isolators 8-2
8-2. Vibration Isolation Mounting for Centrifugal and Axial-Flow Fans 8-8
8-3. Vibration Isolation Mounting for Reciprocating Compressor Refrigeration Equipment Assembly 8-9
8-4. Vibration Isolation Mounting for Rotary Screw Compressor Refrigeration Equipment Assembly 8-12
8-5. Vibration Isolation Mounting for Centrifugal Compressor Refrigeration Equipment Assembly 8-13
8-6. Vibration Isolation Mounting for Absorption-Type Refrigeration Equipment Assembly 8-14
8-7. Vibration Isolation Mounting for Boilers 8-15
8-8. Vibration Isolation Mounting for Propeller-Type Cooling Towers 8-16
8-9. Vibration Isolation Mounting for Centrifugal-Type Cooling Towers 8-17
8-10. Vibration Isolation Mounting for Motor-Pump Assemblies 8-18
8-11. Vibration Isolation Mounting for Steam-Turbine-Driven Rotary Equipment 8-19
8-12. Vibration Isolation Mounting for Transformers 8-20
8-13. Vibration Isolation Mounting for One- or Two-Cylinder Reciprocating-Type Air Compressors in the 10- to 8-21
100-hp Size Range
9-1. Sample Sound Pressure Level Specification 9-3
9-2. Sample Sound Power Level Specification 9-4
B-1. Bandwidth and Geometric Mean Frequency of Standard Octave and 1/3 Octave Bands B-6TM 5-805-4/AFJMAN 32-1090
كلمة سر فك الضغط : books-world.net
The Unzip Password : books-world.net
أتمنى أن تستفيدوا من محتوى الموضوع وأن ينال إعجابكم
رابط من موقع عالم الكتب لتنزيل كتاب Noise and Vibration Control
رابط مباشر لتنزيل كتاب Noise and Vibration Control 
عدل سابقا من قبل Admin في الإثنين 15 أكتوبر 2018, 6:58 pm عدل 1 مرات |
|
Admin
مدير المنتدى
عدد المساهمات : 18992
التقييم : 35482
تاريخ التسجيل : 01/07/2009
الدولة : مصر
العمل : مدير منتدى هندسة الإنتاج والتصميم الميكانيكى
| | موضوع: رد: كتاب Noise and Vibration Control الأربعاء 23 يناير 2013, 7:39 pm | |
| |
|
