كتاب Engineering Noise Control Theory and Practice
منتدى هندسة الإنتاج والتصميم الميكانيكى
بسم الله الرحمن الرحيم

أهلا وسهلاً بك زائرنا الكريم
نتمنى أن تقضوا معنا أفضل الأوقات
وتسعدونا بالأراء والمساهمات
إذا كنت أحد أعضائنا يرجى تسجيل الدخول
أو وإذا كانت هذة زيارتك الأولى للمنتدى فنتشرف بإنضمامك لأسرتنا
وهذا شرح لطريقة التسجيل فى المنتدى بالفيديو :
https://www.youtube.com/watch?v=aw8GR3QlY6M
وشرح لطريقة التنزيل من المنتدى بالفيديو:
https://www.youtube.com/watch?v=Lf2hNxCN1cw
https://www.youtube.com/watch?v=PRIGVoN7CPY
إذا واجهتك مشاكل فى التسجيل أو تفعيل حسابك
وإذا نسيت بيانات الدخول للمنتدى
يرجى مراسلتنا على البريد الإلكترونى التالى :

DEABS2010@YAHOO.COM


 
الرئيسيةالبوابةاليوميةس .و .جبحـثالتسجيلدخولحملة فيد واستفيدجروب المنتدى
شاطر | .
 

 كتاب Engineering Noise Control Theory and Practice

استعرض الموضوع السابق استعرض الموضوع التالي اذهب الى الأسفل 
كاتب الموضوعرسالة
Admin
مدير المنتدى
مدير المنتدى


عدد المساهمات : 14270
التقييم : 22957
تاريخ التسجيل : 01/07/2009
العمر : 28
الدولة : مصر
العمل : مدير منتدى هندسة الإنتاج والتصميم الميكانيكى
الجامعة : المنوفية

مُساهمةموضوع: كتاب Engineering Noise Control Theory and Practice   الإثنين 29 أبريل 2013, 6:58 pm

أخوانى فى الله
أحضرت لكم كتاب

Engineering Noise Control Theory and Practice, 4e [2009]

ويتناول الموضوعات الأتية :

CHAPTER FUNDAMENTALS AND BASIC TERMINOLOGY
INTRODUCTION
NOISE-CONTROL STRATEGIES
Sound Source Modification
Control of the Transmission Path
Modification of the Receiver
Existing Facilities
Facilities in the Design Stage
Airborne versus Structure-borne Noise
ACOUSTIC FIELD VARIABLES
Variables
The Acoustic Field
Magnitudes
The Speed of Sound
Dispersion
Acoustic Potential Function
WAVE EQUATION
Plane and Spherical Waves
Plane Wave Propagation
Spherical Wave Propagation
Wave Summation
Plane Standing Waves
Spherical Standing Waves
MEAN SQUARE QUANTITIES
ENERGY DENSITY
SOUND INTENSITY
Definitions
Plane Wave and Far Field Intensity
Spherical Wave Intensity
SOUND POWER
UNITS
SPECTRA
Frequency Analysis
COMBINING SOUND PRESSURES
Coherent and Incoherent Sounds
Addition of Coherent Sound Pressures
Beating
Addition of Incoherent Sounds (Logarithmic Addition)
Subtraction of Sound Pressure Levels
Combining Level Reductions
IMPEDANCE
Mechanical Impedance, Zm
Specific Acoustic Impedance, Zs
Acoustic Impedance, ZA
FLOW RESISTANCE
CHAPTER THE HUMAN EAR
BRIEF DESCRIPTION OF THE EAR
External Ear
Middle Ear
Inner Ear
Cochlear Duct or Partition
Hair Cells
Neural Encoding
Linear Array of Uncoupled Oscillators
MECHANICAL PROPERTIES OF THE CENTRAL PARTITION
Basilar Membrane Travelling Wave
Energy Transport and Group Speed
Undamping
The Half Octave Shift
Frequency Response
Critical Frequency Band
Frequency Resolution
NOISE INDUCED HEARING LOSS
SUBJECTIVE RESPONSE TO SOUND PRESSURE LEVEL
Masking
Loudness
Comparative Loudness and the Phon
Relative Loudness and the Sone
Pitch
CHAPTER INSTRUMENTATION FOR NOISE MEASUREMENT AND
ANALYSIS
MICROPHONES
Condenser Microphone
Piezoelectric Microphone
Pressure Response
Microphone Sensitivity
Field Effects and Calibration
Microphone Accuracy
WEIGHTING NETWORKS
SOUND LEVEL METERS
CLASSES OF SOUND LEVEL METER
SOUND LEVEL METER CALIBRATION
Electrical Calibration
Acoustic Calibration
Measurement Accuracy
NOISE MEASUREMENTS USING SOUND LEVEL METERS
Microphone Mishandling
Sound Level Meter Amplifier Mishandling
Microphone and Sound Level Meter Response Characteristics
Background Noise
Wind Noise
Temperature
Humidity and Dust
Reflections from Nearby Surfaces
TIME-VARYING SOUND
NOISE LEVEL MEASUREMENT
DATA LOGGERS
PERSONAL SOUND EXPOSURE METER
RECORDING OF NOISE
SPECTRUM ANALYSERS
INTENSITY METERS
Sound Intensity by the pBu Method
Accuracy of the pBu Method
Sound Intensity by the pBp Method
Accuracy of the pBp Method
Frequency Decomposition of the Intensity
Direct Frequency Decomposition
Indirect Frequency Decomposition
ENERGY DENSITY SENSORS
SOUND SOURCE LOCALISATION
Nearfield Acoustic Holography (NAH)
Summary of the Underlying Theory
Statistically Optimised Nearfield Acoustic
Holography (SONAH)
Helmholtz Equation Least Squares Method (HELS)
Beamforming
Summary of the Underlying Theory
Direct Sound Intensity measurement
CHAPTER CRITERIA
INTRODUCTION
Noise Measures
A-weighted Equivalent Continuous Noise Level, LAeq
A-weighted Sound Exposure
A-weighted Sound Exposure Level, LAE or SEL
DayBNight Average Sound Level, Ldn or DNL
Community Noise Equivalent Level, Lden or CNEL
Effective Perceived Noise Level, LPNE
Other Descriptors
HEARING LOSS
Threshold Shift
Presbyacusis
Hearing Damage
HEARING DAMAGE RISK
Requirements for Speech Recognition
Quantifying Hearing Damage Risk
International Standards Organisation Formulation
Alternative Formulations
Bies and Hansen Formulation
Dresden Group Formulation
Observed Hearing Loss
Some Alternative Interpretations
HEARING DAMAGE RISK CRITERIA
Continuous Noise
Impulse Noise
Impact Noise
IMPLEMENTING A HEARING CONSERVATION PROGRAM
SPEECH INTERFERENCE CRITERIA
Broadband Background Noise
Intense Tones
PSYCHOLOGICAL EFFECTS OF NOISE
Noise as a Cause of Stress
Effect on Behaviour and Work Efficiency
AMBIENT NOISE LEVEL SPECIFICATION
Noise Weighting Curves
NR Curves
NC Curves
RC Curves
NCB Curves
RNC Curves
Comparison of Noise Weighting Curves with
dB(A) Specifications
Speech Privacy
ENVIRONMENTAL NOISE LEVEL CRITERIA
A-weighting Criteria
ENVIRONMENTAL NOISE SURVEYS
Measurement Locations
Duration of the Measurement Survey
Measurement Parameters
Noise Impact
CHAPTER SOUND SOURCES AND OUTDOOR SOUND
PROPAGATION
INTRODUCTION
SIMPLE SOURCE
Pulsating Sphere
Fluid Mechanical Monopole Source
DIPOLE SOURCE
Pulsating Doublet or Dipole (Far-field Approximation)
Pulsating Doublet or Dipole (Near-field)
Oscillating Sphere
Fluid Mechanical Dipole Source
QUADRUPOLE SOURCE (FAR-FIELD APPROXIMATION)
Lateral Quadrupole
Longitudinal Quadrupole
Fluid Mechanical Quadrupole Source
LINE SOURCE
Infinite Line Source
Finite Line Source
PISTON IN AN INFINITE BAFFLE
Far Field
Near Field On-axis
Radiation Load of the Near Field
INCOHERENT PLANE RADIATOR
Single Wall
Several Walls of a Building or Enclosure
DIRECTIVITY
REFLECTION EFFECTS
Simple Source Near a Reflecting Surface
Observer Near a Reflecting Surface
Observer and Source Both Close to a Reflecting Surface
REFLECTION AND TRANSMISSION AT A PLANE / TWO MEDIA
INTERFACE
Porous Earth
Plane Wave Reflection and Transmission
Spherical Wave Reflection at a Plane Interface
Effects of Turbulence
SOUND PROPAGATION OUTDOORS, GENERAL CONCEPTS
Methodology
Limits to Accuracy of Prediction
Outdoor Sound Propagation Prediction Schemes
Geometrical Spreading, K
Directivity Index, DIM
Excess Attenuation Factor, AE
Air Absorption, Aa
Shielding by Barriers, Houses and Process
Equipment/Industrial Buildings, Abhp
Attenuation due to Forests and Dense Foliage, Af
Ground Effects
CONCAWE Method
Simple Method (Hard or Soft Ground)
Plane Wave Method
ISO - () Method
Detailed, Accurate and Complex Method
Image Inversion and Increased Attenuation at Large Distance
Meteorological Effects
Attenuation in the Shadow Zone
(Negative Sonic Gradient)
Meteorological Attenuation Calculated
according to Tonin ()
Meteorological Attenuation Calculated
according to CONCAWE
Meteorological Attenuation Calculated
according to ISO - ()
Combined Excess Attenuation Model
Accuracy of Outdoor Sound Predictions
CHAPTER SOUND POWER, ITS USE AND MEASUREMENT
INTRODUCTION
RADIATION IMPEDANCE
RELATION BETWEEN SOUND POWER AND
SOUND PRESSURE
RADIATION FIELD OF A SOUND SOURCE
Free-field Simulation in an Anechoic Room
Sound Field Produced in an Enclosure
DETERMINATION OF SOUND POWER USING INTENSITY
MEASUREMENTS
DETERMINATION OF SOUND POWER USING
CONVENTIONAL PRESSURE MEASUREMENTS
Measurement in Free or Semi-free Field
Measurement in a Diffuse Field
Substitution Method
Absolute Method
Field Measurement
Semi-reverberant Field Measurements by Method One
Semi-reverberant Field Measurements by Method Two
Semi-reverberant Field Measurements by Method Three
Near-field Measurements
DETERMINATION OF SOUND POWER USING SURFACE
VIBRATION MEASUREMENTS
SOME USES OF SOUND POWER INFORMATION
The Far Free Field
The Near Free Field
CHAPTER SOUND IN ENCLOSED SPACES
INTRODUCTION
Wall-interior Modal Coupling
Sabine Rooms
Flat and Long Rooms
LOW FREQUENCIES
Rectangular rooms
Cylindrical Rooms
BOUND BETWEEN LOW-FREQUENCY AND
HIGH-FREQUENCY BEHAVIOUR
Modal Density
Modal Damping and Bandwidth
Modal Overlap
Cross-over Frequency
HIGH FREQUENCIES, STATISTICAL ANALYSIS
Effective Intensity in a Diffuse Field
Energy Absorption at Boundaries
Air Absorption
Steady-state Response
TRANSIENT RESPONSE
Classical Description
Modal Description
Empirical Description
Mean Free Path
MEASUREMENT OF THE ROOM CONSTANT
Reference Sound Source Method
Reverberation Time Method
POROUS SOUND ABSORBERS
Measurement of Absorption Coefficients
Noise Reduction Coefficient (NRC)
Porous Liners
Porous Liners with Perforated Panel Facings
Sound Absorption Coefficients of Materials in Combination
PANEL SOUND ABSORBERS
Empirical Method
Analytical Method
FLAT AND LONG ROOMS
Flat Room with Specularly Reflecting Floor and Ceiling
Flat Room with Diffusely Reflecting Floor and Ceiling
Flat Room with Specularly and Diffusely Reflecting Boundaries
Long Room with Specularly Reflecting Walls
Long Room with Circular Cross-section and Diffusely
Reflecting Wall
Long Room with Rectangular Cross-section
APPLICATIONS OF SOUND ABSORPTION
Relative Importance of the Reverberant Field
AUDITORIUM DESIGN
Reverberation Time
Early Decay Time (EDT)
Clarity (C )
Envelopment
Interaural Cross Correlation Coefficient, IACC
Background Noise Level
Total Sound Level or Loudness, G
Diffusion
Speech Intelligibility
RASTI
Articulation Loss
Signal to Noise Ratio
Sound Reinforcement
Direction Perception
Feedback Control
Estimation of Parameters for Occupied Concert Halls
Optimum Volumes for Auditoria
CHAPTER PARTITIONS, ENCLOSURES AND BARRIERS
INTRODUCTION
SOUND TRANSMISSION THROUGH PARTITIONS
Bending Waves
Transmission Loss
Impact Isolation
Panel Transmission Loss (or Sound Reduction Index) Behaviour
Sharp’s Prediction Scheme for Isotropic Panels
Davy’s Prediction Scheme for Isotropic Panels
Thickness Correction for Isotropic Panels
Orthotropic Panels
Sandwich Panels
Double Wall Transmission Loss
Sharp Model for Double Wall TL
Davy Model for Double Wall TL
Staggered Studs
Panel Damping
Effect of the Flow Resistance of the Sound
Absorbing Material in the Cavity
Multi-leaf and Composite Panels
Triple Wall Sound Transmission Loss
Common Building Materials
Sound-absorptive Linings
NOISE REDUCTION vs TRANSMISSION LOSS
Composite Transmission Loss
Flanking Transmission Loss
ENCLOSURES
Noise Inside Enclosures
Noise Outside Enclosures
Personnel Enclosures
Enclosure Windows
Enclosure Leakages
Access and Ventilation
Enclosure Vibration Isolation
Enclosure Resonances
Close-fitting Enclosures
Partial Enclosures
BARRIERS
Diffraction at the Edge of a Thin Sheet
Outdoor Barriers
Thick Barriers
Shielding by Terrain
Effects of Wind and Temperature Gradients on Barrier
Attenuation
ISO - Approach to Barrier Insertion
Loss Calculations
Indoor Barriers
PIPE LAGGING
Porous Material Lagging
Impermeable Jacket and Porous Blanket Lagging
CHAPTER MUFFLING DEVICES
INTRODUCTION
MEASURES OF PERFORMANCE
DIFFUSERS AS MUFFLING DEVICES
CLASSIFICATION OF MUFFLING DEVICES
ACOUSTIC IMPEDANCE
LUMPED ELEMENT DEVICES
Impedance of an Orifice or a Short Narrow Duct
End Correction
Acoustic Resistance
Impedance of a Volume
REACTIVE DEVICES
Acoustical Analogs of Kirchhoff's Laws
Side Branch Resonator
End Corrections for a Helmholtz Resonator Neck
and Quarter Wave Tube
Quality Factor of a Helmholtz Resonator and
Quarter Wave Tube
Insertion Loss due to Side Branch
Transmission Loss due to Side Branch
Resonator Mufflers
Expansion Chamber
Insertion Loss
Transmission Loss
Small Engine Exhaust
Lowpass Filter
Pressure Drop Calculations for Reactive Muffling Devices
Flow-generated Noise
LINED DUCTS
Locally Reacting and Bulk Reacting Liners
Liner Specification
Lined Duct Silencers
Flow Effects
Higher Order Mode Propagation
Cross-sectional Discontinuities
Pressure Drop Calculations for Dissipative Mufflers
DUCT BENDS OR ELBOWS
UNLINED DUCTS
EFFECT OF DUCT END REFLECTIONS
DUCT BREAK-OUT NOISE
Break-out Sound Transmission
Break-in Sound Transmission
LINED PLENUM ATTENUATOR
Wells’ Method
ASHRAE Method
More Complex Methods (Cummings and Ih)
WATER INJECTION
DIRECTIVITY OF EXHAUST DUCTS
CHAPTER VIBRATION CONTROL
INTRODUCTION
VIBRATION ISOLATION
Single-degree-of-freedom Systems
Surging in Coil Springs
Four-isolator Systems
Two-stage Vibration Isolation
Practical Isolator Considerations
Lack of Stiffness of Equipment Mounted on Isolators
Lack of Stiffness of Foundations
Superimposed Loads on Isolators
TYPES OF ISOLATORS
Rubber
Metal Springs
Cork
Felt
Air Springs
VIBRATION ABSORBERS
VIBRATION MEASUREMENT
Acceleration Transducers
Sources of Measurement Error
Sources of Error in the Measurement of Transients
Accelerometer Calibration
Accelerometer Mounting
Piezo-resistive Accelerometers
Velocity Transducers
Laser Vibrometers
Instrumentation Systems
Units of Vibration
DAMPING OF VIBRATING SURFACES
When Damping is Effective and Ineffective
Damping Methods
MEASUREMENT OF DAMPING
CHAPTER SOUND POWER AND SOUND PRESSURE LEVEL
ESTIMATION PROCEDURES
INTRODUCTION
FAN NOISE
AIR COMPRESSORS
Small Compressors
Large Compressors (Noise Levels within the Inlet and
Exit Piping)
Centrifugal Compressors (Interior Noise Levels)
Rotary or Axial Compressors (Interior Noise Levels)
Reciprocating Compressors (Interior Noise)
Large Compressors (Exterior Noise Levels)
COMPRESSORS FOR CHILLERS AND
REFRIGERATION UNITS
COOLING TOWERS
PUMPS
JETS
General Estimation Procedures
Gas and Steam Vents
General Jet Noise Control
CONTROL VALVES
Internal Sound Power Generation
Internal Sound Pressure Level
External Sound Pressure Level
High Exit Velocities
Control Valve Noise Reduction
Control Valves for Liquids
Control Valves for Steam
PIPE FLOW
BOILERS
TURBINES
DIESEL AND GAS-DRIVEN ENGINES
Exhaust Noise
Casing Noise
Inlet Noise
FURNACE NOISE
ELECTRIC MOTORS
Small Electric Motors (below kW)
Large Electric Motors (above kW)
GENERATORS
TRANSFORMERS
GEARS
TRANSPORTATION NOISE
Road Traffic Noise
UK DoT model (CoRTN)
United States FHWA Traffic Noise Model (TNM)
Other Models
Rail Traffic Noise
Aircraft Noise
CHAPTER PRACTICAL NUMERICAL ACOUSTICS
by Carl Howard
INTRODUCTION
LOW-FREQUENCY REGION
Helmholtz Method
Boundary Element Method (BEM)
Direct Method
Indirect Method
Meshing
Problem Formulation
Rayleigh Integral Method
Finite Element Analysis (FEA)
Pressure Formulated Acoustic Elements
Displacement Formulated Acoustic Elements
Practical Aspects of Modelling Acoustic
Systems with FEA
Numerical Modal Analysis
Modal Coupling using MATLAB
Acoustic Potential Energy
HIGH-FREQUENCY REGION: STATISTICAL ENERGY
ANALYSIS
Coupling Loss Factors
Amplitude Responses
APPENDIX A WAVE EQUATION DERIVATION
A CONSERVATION OF MASS
A EULER'S EQUATION
A EQUATION OF STATE
A WAVE EQUATION (LINEARISED)
APPENDIX B PROPERTIES OF MATERIALS
APPENDIX C ACOUSTICAL PROPERTIES OF
POROUS MATERIALS
Cl FLOW RESISTANCE AND RESISTIVITY
C SOUND PROPAGATION IN POROUS MEDIA
C SOUND REDUCTION DUE TO PROPAGATION THROUGH A
POROUS MATERIAL
C MEASUREMENT AND CALCULATION OF ABSORPTION
COEFFICIENTS
C Porous Materials with a Backing Cavity
C Multiple Layers of Porous Liner backed by an Impedance ZL
C Porous Liner Covered with a Limp Impervious Layer
C Porous Liner Covered with a Perforated Sheet
C Porous Liner Covered with a Limp Impervious Layer and a
Perforated Sheet
APPENDIX D FREQUENCY ANALYSIS
D DIGITAL FILTERING
D DISCRETE FOURIER ANALYSIS
D Power Spectrum
D Sampling Frequency and Aliasing
D Uncertainty Principle
D Real-time Frequency
D Weighting Functions
D Zoom Analysis
D IMPORTANT FUNCTIONS
D Cross-spectrum
D Coherence
D Frequency Response (or Transfer) Function
REFERENCES
LIST OF ACOUSTICAL STANDARDS
INDEX

أتمنى أن تستفيدوا منه وأن ينال إعجابكم


رابط تنزيل كتاب Engineering Noise Control Theory and Practice, 4e [2009]

الرجوع الى أعلى الصفحة اذهب الى الأسفل
 

كتاب Engineering Noise Control Theory and Practice

استعرض الموضوع السابق استعرض الموضوع التالي الرجوع الى أعلى الصفحة 
صفحة 2 من اصل 1

خدمات الموضوع
 KonuEtiketleri كلمات دليليه
كتاب Engineering Noise Control Theory and Practice , كتاب Engineering Noise Control Theory and Practice , كتاب Engineering Noise Control Theory and Practice ,كتاب Engineering Noise Control Theory and Practice ,كتاب Engineering Noise Control Theory and Practice , كتاب Engineering Noise Control Theory and Practice
 KonuLinki رابط الموضوع
 Konu BBCode BBCode
 KonuHTML Kodu HTMLcode
إذا وجدت وصلات لاتعملفي الموضوع او أن الموضوع [ كتاب Engineering Noise Control Theory and Practice ] مخالف ,, من فضلك راسل الإدارة من هنا
صلاحيات هذا المنتدى:لاتستطيع الرد على المواضيع في هذا المنتدى
منتدى هندسة الإنتاج والتصميم الميكانيكى :: المنتديات الهندسية :: منتدى الكتب والمحاضرات الهندسية :: منتدى الكتب والمحاضرات الهندسية الأجنبية-