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Table of Contents
Preface; Contents; 1 Acoustic Textiles: An Introduction; Abstract; 1 Introduction; 2 Global Usage of AcousticßTextiles; 2.1 Reasons for Increased Usage; 2.2 Statistical Data; 3 Noise Generation and Its Impact; 3.1 Sources of Noise; 3.2 Impact of Noise Pollution; 4 Noise Control; 4.1 Need for Noise Control; 4.2 Legality; 4.2.1 United States (US); 4.2.2 Europe; 4.2.3 Asia; 4.2.4 Australia/New Zealand; 4.3 Methods of Noise Control; 4.3.1 Methods of Noise Control; 4.3.2 Room Acoustic; 4.3.3 Automotive Noise Control; 4.4 Materials Used for Noise Control; 4.4.1 Porous Materials.
4.4.2 Virgin Materials4.4.3 Recycled Materials; 4.4.4 Composites; 5 Book Contents; 6 Standards and Governing Bodies Relating to Acoustic Materials; 6.1 Standards; 6.2 Professional Societies; 6.3 List of Journals and Global Conferences; 6.3.1 List of Journals; 6.3.2 List of Global Conferences; 7 Conclusion; References; 2 Basics of Acoustic Science; Abstract; 1 Introduction; 2 Sound Generation; 3 Sound Wave Propagation; 3.1 Sound Wave Concept; 3.2 Sound Interference and Doppler Effect; 3.3 Absorption; 3.4 Transmission; 3.5 Reflection; 3.6 Refraction; 3.7 Diffraction.
4 Octave and 1/3 Octave Band5 Sound Attributes; 6 Sound Pressure Level; 7 Sound Intensity; 8 Sound Insulation; 9 Sound Classification; 10 Conclusion; References; 3 Principles of Sound Absorbers; Abstract; 1 Principles of Sound Absorbers; 1.1 Sound Propagation, Reflection and Absorption; 1.1.1 Propagation; 1.1.2 Absorption; 1.1.3 Scattering; 1.1.4 Flow Resistivity; 1.2 Porous Absorbers; 1.3 Resonance Absorbers; 1.3.1 Helmholtz Resonant Absorber; 1.3.2 Micro-Perforated Panel Resonators; 1.4 Factors Affecting Sound Absorption; 1.4.1 Material Thickness; 1.4.2 Fibre Size; 1.4.3 Porosity.
1.4.4 Density1.4.5 Tortuosity; 1.4.6 Compression; 1.4.7 Airflow Resistance; 1.4.8 Surface Impedance; 1.4.9 Position of Sound Absorbers; 1.5 Applications of Sound Absorbers; 1.6 Specific Discussions on Acoustic Textiles; 1.7 Conclusions and Future Directions; References; 4 Materials Used for Acoustic Textiles; Abstract; 1 Introduction; 2 Raw Materials; 2.1 Natural and Synthetic Fibres; 2.2 Recycled Materials: Shoddy; 3 Porous Absorbers; 4 Panel Absorbers; 5 Acoustic Materials Coated, Sprayed or Embedded with Fillers; 6 Use of Nanomaterials; 7 Recent Trends and Future Directions; 8 Conclusion.
AcknowledgmentsReferences; 5 Manufacturing Methods for Acoustic Textiles; Abstract; 1 Introduction; 2 Fibres as Raw Material; 3 Woven and Nonwoven Fabrics; 4 Polymer Composites; 5 Non-conventional Textile Structures; 5.1 Recycled Materials; 5.2 Shear Thickening Fluids; 5.3 Resonance Membrane; 5.4 Carbon Fibre Felts; 5.5 Fabric Sleeves; 5.6 Other Textile Materials; 6 Conclusion; References; 6 Acoustical Test Methods for Nonwoven Fabrics; Abstract; 1 Evaluation Methods for Acoustic Materials; 1.1 Introduction; 1.2 Physical Properties; 1.2.1 Areal Density; 1.2.2 Thickness.
4.4.2 Virgin Materials4.4.3 Recycled Materials; 4.4.4 Composites; 5 Book Contents; 6 Standards and Governing Bodies Relating to Acoustic Materials; 6.1 Standards; 6.2 Professional Societies; 6.3 List of Journals and Global Conferences; 6.3.1 List of Journals; 6.3.2 List of Global Conferences; 7 Conclusion; References; 2 Basics of Acoustic Science; Abstract; 1 Introduction; 2 Sound Generation; 3 Sound Wave Propagation; 3.1 Sound Wave Concept; 3.2 Sound Interference and Doppler Effect; 3.3 Absorption; 3.4 Transmission; 3.5 Reflection; 3.6 Refraction; 3.7 Diffraction.
4 Octave and 1/3 Octave Band5 Sound Attributes; 6 Sound Pressure Level; 7 Sound Intensity; 8 Sound Insulation; 9 Sound Classification; 10 Conclusion; References; 3 Principles of Sound Absorbers; Abstract; 1 Principles of Sound Absorbers; 1.1 Sound Propagation, Reflection and Absorption; 1.1.1 Propagation; 1.1.2 Absorption; 1.1.3 Scattering; 1.1.4 Flow Resistivity; 1.2 Porous Absorbers; 1.3 Resonance Absorbers; 1.3.1 Helmholtz Resonant Absorber; 1.3.2 Micro-Perforated Panel Resonators; 1.4 Factors Affecting Sound Absorption; 1.4.1 Material Thickness; 1.4.2 Fibre Size; 1.4.3 Porosity.
1.4.4 Density1.4.5 Tortuosity; 1.4.6 Compression; 1.4.7 Airflow Resistance; 1.4.8 Surface Impedance; 1.4.9 Position of Sound Absorbers; 1.5 Applications of Sound Absorbers; 1.6 Specific Discussions on Acoustic Textiles; 1.7 Conclusions and Future Directions; References; 4 Materials Used for Acoustic Textiles; Abstract; 1 Introduction; 2 Raw Materials; 2.1 Natural and Synthetic Fibres; 2.2 Recycled Materials: Shoddy; 3 Porous Absorbers; 4 Panel Absorbers; 5 Acoustic Materials Coated, Sprayed or Embedded with Fillers; 6 Use of Nanomaterials; 7 Recent Trends and Future Directions; 8 Conclusion.
AcknowledgmentsReferences; 5 Manufacturing Methods for Acoustic Textiles; Abstract; 1 Introduction; 2 Fibres as Raw Material; 3 Woven and Nonwoven Fabrics; 4 Polymer Composites; 5 Non-conventional Textile Structures; 5.1 Recycled Materials; 5.2 Shear Thickening Fluids; 5.3 Resonance Membrane; 5.4 Carbon Fibre Felts; 5.5 Fabric Sleeves; 5.6 Other Textile Materials; 6 Conclusion; References; 6 Acoustical Test Methods for Nonwoven Fabrics; Abstract; 1 Evaluation Methods for Acoustic Materials; 1.1 Introduction; 1.2 Physical Properties; 1.2.1 Areal Density; 1.2.2 Thickness.