كتاب Noise and Vibration Control
منتدى هندسة الإنتاج والتصميم الميكانيكى
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 كتاب Noise and Vibration Control

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عدد المساهمات : 14261
التقييم : 22948
تاريخ التسجيل : 01/07/2009
العمر : 28
الدولة : مصر
العمل : مدير منتدى هندسة الإنتاج والتصميم الميكانيكى
الجامعة : المنوفية

مُساهمةموضوع: كتاب Noise and Vibration Control   الخميس 21 يونيو 2012, 12:22 am

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أحضرت لكم كتاب

Noise and Vibration Control

ويتناول الموضوعات الأتية :

GENERAL
Purpose
Scope
References
Noise Estimates
English, Metric Units
Explanation of Abbreviation and Terms
Noise and Vibration Criteria
General
Noise Criteria In Buildings
Vibration Criteria In Building
Sound Distribution Indoors
General
Sound Pressure Level in a Room
Room Constant
Sample Calculations
Sound Isolation Between Rooms
Objective
Sound Transmission Loss (TL), Noise Reduction (NR) & Sound Transmission Class (STC)
Transmission LossWalls, Doors, Windows
Transmission Loss of FloorCeiling Combinations
Sound Propagation Outdoors
Introduction
Distance Effects
Atmospheric Effects
Terrain and Vegetation
Barriers
Reception of Outdoor Noise Indoors
Combined Effects, Sample Calculation
Source Directivity
Airborne Sound Control
Introduction
Indoor Sound Analysis
Outdoor Sound Problem and Analysis
Quality of Analysis Procedure
Noise Control Treatments
Air Distribution Noise for Heating, Ventilating and Air Conditioning SYSTEMS
Introduction
General Spectrum Characteristics of Noise Sources
Specific Characteristics of Noise Sources
Control of Fan Noise in a Duct Distribution System
Procedure for Calculating Noise Control Requirements for an Air Distribution System
Calculation Example
Vibration Control
Introduction
Vibration Isolation Elements
Mounting Assembly Types
Tables of Recommended Vibration Isolation Details
Vibration IsolationMiscellaneous
Mechanical Noise Specifications
Objective
General Considerations
Paragraph Page
Partitions and Enclosures
Mufflers and Duct Lining for Ducted Ventilation System
Sound Levels for Equipment
CHAPTER NOISE AND VIBRATION MEASUREMENTS
Objective
Sound and Vibration Instrumentation
Measurement of Noise and Vibration in Buildings
Measurement of Noise and Vibration Outdoors
APPENDIX A REFERENCES
B BASICS OF ACOUSTICS
C SOUND LEVEL DATA FOR MECHANICAL AND ELECTRICAL EQUIPMENT
GLOSSARY
BIBLIOGRAPHY
List of Figures
Page
FIGURE Noise Criterion (NC) curves
Room Criterion (RC) curves
Approximate Sensitivity and Response of People to Feelable Vibration
Vibration Criteria for Damage Risk to Buildings
Vibration Criteria for Sensitive Equipment in Buildings
Vibration Acceleration Levels of a Large Vibrating Surface that Will Produce Radiated Sound Levels
Into a Room Approximating the Sound Levels of the NC Curves
Approximate Relationship Between Relative Sound Pressure Level (REL SPL) and Distance to a Sound
Source for Various Room Constant Values
Room Constant Estimate
Improvement in Transmission Loss Caused by Air Space Between Double Walls Compared to Single
Wall of Equal Total Weight, Assuming no Rigid Ties Between Walls
Natural Frequency of a Double Wall With an Air Space
Schematic Illustration of Flanking Paths of Sound
Typical Floating Floor Construction
Suggested Applications and Details of Floating Floors for Improvement of Airborne Sound Transmission Loss
Structureborne Flanking Paths of Noise (Paths and ) Limit the Low Sound Levels Otherwise
Achievable With HighTL Floating Floor Construction (Path )
Nonflat Concrete Floors
Inverse Square Law of Sound Propagation
Downwind sound diffraction
Upwind Sound Diffraction
Effects of Temperature Gradients on Sound Propagation
Outdoor Sound Propagation Near the Ground
Parameters and Geometry of Outdoor Sound Barrier
Examples of Surfaces That Can Reflect Sound Around or Over a Barrier Wall
Compound Barriers
Edge Effects at End of Barrier
Elevation Profile of Cooling Tower Used in Example
Good and Poor Air Delivery Conditions to Air Outlets
Plan View of Supply Duct for Example
Suggested Arrangement of Ribbed Neoprene Pads for Providing Resilient Lateral Restraint to a Spring
Mount
Schematic of Vibration Isolation Mounting for Fan and DriveAssembly of PropellerType Cooling Tower
Schematic of a Resilient Clamping Arrangement With Ribbed Neoprene Pads
B Approximate Electrical Frequency Response of the A, B, and CWeighted Networks of Sound Level B
Meters
B Transmissibility of a Simple Undamped Single DegreeofFreedom System B
C Sound Pressure Levels of Reciprocating Compressors at ft Distance C
C Sound Pressure Levels of Centrifugal Compressors at ft Distance C
C Principal Types of Cooling Towers C
C Sound Pressure Levels of Pumps at ft Distance Cli
C Sound Pressure Levels of Air Compressors at ft Distance C
C Sound Pressure Levels of TEFC Motors at ft Distance C
C Sound Pressure Levels of DRPR Motors at ft Distance C
C Sound Pressure Levels of Steam Turbines at ft Distance C
TM /AFJMAN

List of Tables
Page
Table Category Classification and Suggested Noise Criterion Range for Intruding SteadyState Noise as Heard
in Various Indoor Functional Activity Areas
Speech Interference Levels (SIL) That Permit Barely Acceptable Speech Intelligibility at the Distances
and Voice Levels Shown
Reduction of SPL (in dB) in Going From Normalized ft Distance and ft Room Constant to Any
Other Distance and Room Constant
REL SPL Values for a Range of Distances “D” and Room Constants “R”, for Use With PWL Data
Sound Absorption Coefficients of General Building Materials and Furnishings
Low Frequency Multipliers For Room Constants
Summary of Data and Calculations Illustrating Use of Equation
Summary of Data and Calculations Illustrating Use of Equation
Wall or Floor Correction Term “C” for Use in the Equation NR TL + “C”
Transmission Loss (in dB) of Dense Poured Concrete or SolidCore Concrete Block or Masonry
Transmission Loss (in dB) of HollowCore Dense Concrete Block or Masonry
Transmission Loss (in dB) of Cinder Block or Other Lightweight Porous Block Material with Impervious
Skin on Both Sides to Seal Pores
Transmission Loss (in dB) of Dense Plaster
Transmission Loss (in dB) of StudType Partitions
Transmission Loss (in dB) of Plywood, Lumber, and Simple Wood Doors
Transmission Loss (in dB) of Glass Walls or Windows
Transmission Loss (in dB) of Typical DoubleGlass Windows, Using ¼inThick Glass Panels With
Different Air Space Widths
Transmission Loss (in dB) of a Filled Metal Panel Partition and Several Commercially Available
Acoustic Doors
Approximate Transmission Loss (in dB) of Aluminum, Steel and Lead
Transmission Loss (in dB) of Type FloorCeiling Combinations
Transmission Loss (in dB) of Type FloorCeiling Combinations
Transmission Loss (in dB) of Type FloorCeiling Combinations
Transmission Loss (in dB) of Type FloorCeiling Combinations
Approximate Improvement in Transmission Loss (in dB) When Type Floating Floor is Added to Types
through FloorCeiling Combinations
Molecular Absorption Coefficients, dB per ft, as a Function of Temperature and Relative Humidity
Values of Anomalous Excess Attenuation per ft
Distance Term (DT), in dB, to a Distance of ft
Distance Term (DT), in dB, at Distances of ft to ft
Insertion Loss for Sound Transmission Through a Growth of MediumDense Woods
Insertion Loss of an Ideal Solid Outdoor Barrier
Approximate Noise Reduction of Typical Exterior Wall Constructions
Location “A” Cooling Tower Problem
Location “B” Cooling Tower Problem
Plenum/Ceiling Transfer Factor
Approximate Natural Attenuation in Unlined SheetMetal Ducts
Attenuation in Lined Ducts
Power Level Loss at Branches
End Reflection Loss
Losses Caused by Duct Elbows
Representative IL Values for Sound Attenuators
General Types and Applications of Vibration Isolators
Vibration Isolation Mounting for Centrifugal and AxialFlow Fans
Vibration Isolation Mounting for Reciprocating Compressor Refrigeration Equipment Assembly
Vibration Isolation Mounting for Rotary Screw Compressor Refrigeration Equipment Assembly
Vibration Isolation Mounting for Centrifugal Compressor Refrigeration Equipment Assembly
Vibration Isolation Mounting for AbsorptionType Refrigeration Equipment Assembly
Vibration Isolation Mounting for Boilers
Vibration Isolation Mounting for PropellerType Cooling Towers
Vibration Isolation Mounting for CentrifugalType Cooling Towers
Vibration Isolation Mounting for MotorPump Assemblies
Vibration Isolation Mounting for SteamTurbineDriven Rotary Equipment
Vibration Isolation Mounting for Transformers
Vibration Isolation Mounting for One or TwoCylinder ReciprocatingType Air Compressors in the to
hp Size Range
Sample Sound Pressure Level Specification
Sample Sound Power Level Specification
B Bandwidth and Geometric Mean Frequency of Standard Octave and / Octave Bands B
TM /AFJMAN

List of Tables (Cont*d)
Page
Table B Relationship Between Changes in Sound Level, Acoustic Energy Loss, and Approximate Relative B
Loudness of a Sound
B Suggested Schedule for Estimating Relative Vibration Isolation Effectiveness of a Mounting System B
C Sound Pressure Levels (in dE at ft Distance) for Packaged Chillers with Reciprocating Compressors C
C Sound Pressure Levels (in dE at ft Distance) for Packaged Chillers with Rotary Screw Compressors C
C Sound Pressure Levels (in dE at ft Distance) for Packaged Chillers with Centrifugal Compressors C
C Sound Pressure Levels (in dB at ft Distance) for Absorption Machines C
C Sound Pressure Levels (in dE at ft Distance from the Front) for Boilers CS
C Sound Pressure Levels (in dE at ft Distance) for HighPressure Thermally Insulated Steam Valves CS
and Nearby Piping
C Frequency Adjustments (in dE) for PropellerType Cooling Towers C
C Frequency Adjustments (in dE) for CentrifugalFan Cooling Towers C
C Correction to Average SPLs for Directional Effects of Cooling Towers C
C Approximate CloseIn SPLs (in dB) Near the Intake and Discharge Openings of Various Cooling Towers C
( to ft Distance)
C Overall and AWeighted Sound Pressure Levels (in dB and dE(A) at ft Distance) for Pumps C
C Frequency Adjustments (in dB) for Pumps C
C Specific Sound Power Levels Kw (in dE), Blade Frequency Increments (in dB) and OffPeak Correction C
for Fans of Various Types, for Use in Equation CS
C Approximate OctaveBand Adjustments for Estimating the PWL of Noise Radiated by a Fan Housing C
and its Nearby Connected Duct Work
C Sound Pressure Levels (in dE at ft Distance) for Air Compressors C
C Correction Terms (in dB) to be Applied to Equation C for Estimating the Overall PWL of the Casing C
Noise of a Reciprocating Engine
C Frequency Adjustments (in dE) for Casing Noise of Reciprocating Engines C
C Frequency Adjustments (in dB) for Turbocharger Air Inlet Noise C
C Frequency Adjustments (in dE) for Unmuffled Engine Exhaust Noise C
C Overall PWLs of the Principal Noise Components of Gas Turbine Engines having no Noise Control C
Treatments
C Frequency Adjustments (in dE) for Gas Turbine Engine Noise Sources C
C Approximate Noise Reduction of Gas Turbine Engine Casing Enclosures C
C Approximate Directivity Effect (in dB) of a Large Exhaust Stack Compared to a Nondirectional Source C
of the Same Power
C Frequency Adjustments (in dE) for TEFC Electric Motors C
C Frequency Adjustments (in dE) for DRPR Electric Motors C
C Sound Pressure Levels (in dB at ft distance) for Steam Turbines C
C Approximate Sound Pressure Levels (in dE at ft Distance) for Gears, in the through Hz C
Octave Bands, from Equation C
C Approximate Overall PWI (in dE) of Generators, Excluding the Noise of the Driver Unit C
C Frequency Adjustments (in dE) for Generators Without Drive Unit C
C OctaveBand Corrections (in dE) to be Used in Equation C

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عدد المساهمات : 14261
التقييم : 22948
تاريخ التسجيل : 01/07/2009
العمر : 28
الدولة : مصر
العمل : مدير منتدى هندسة الإنتاج والتصميم الميكانيكى
الجامعة : المنوفية

مُساهمةموضوع: رد: كتاب Noise and Vibration Control   الأربعاء 23 يناير 2013, 7:39 pm

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كتاب Noise and Vibration Control

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