An introduction to virtual sound barriers /
A virtual sound barrier is an active noise control system that uses arrays of loudspeakers and microphones to create a useful size of quiet zone and can be used to reduce sound propagation, radiation, or transmission from noise sources or to reduce noise level around people in a noisy environment. T...
Saved in:
| Main Author: | |
|---|---|
| Format: | Electronic eBook |
| Language: | English |
| Published: |
Boca Raton :
Taylor & Francis, a CRC title, part of the Taylor & Francis imprint, a member of the Taylor & Francis Group, the academic division of T&F Informa, plc,
2019.
|
| Subjects: | |
| Online Access: | Taylor & Francis OCLC metadata license agreement |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Add Tag
Table of Contents:
- Cover; Half Title; Title Page; Copyright Page; Contents; Preface; Author; 1: Introduction; 1.1 Sound Propagation; 1.1.1 Sound Absorption and Absorption Coefficient; 1.1.2 Sound Insulation and Transmission Loss; 1.1.3 Sound Scattering and Scattering Coefficient; 1.1.4 Sound Diffraction and Insertion Loss; 1.2 Passive Sound Barriers; 1.2.1 The MacDonald Solution; 1.2.2 The Zhao Solution; 1.2.3 The Kurze and Anderson Formula; 1.3 Active Sound Barriers; 1.3.1 Principle; 1.3.2 Secondary Sources for Active Sound Barriers; 1.3.3 Sensing Strategies for Active Sound Barriers
- 1.3.4 Implementation Issues1.4 Virtual Sound Barriers; 1.4.1 History; 1.4.2 Principle; 1.4.3 Design Methods; 1.4.3.1 The Expansion Method of the Primary Sound Field; 1.4.3.2 The Least Mean Square Method; 2: Planar Virtual Sound Barriers; 2.1 Problem Description; 2.2 Control of Sound Propagation in Free Fields; 2.2.1 Control of the Plane Wave Primary Sound Field; 2.2.2 Control of the Primary Sound Field Generated by Monopole Sources; 2.2.3 Control of General Primary Sound Fields; 2.3 Control of Sound Propagation Through a Finite Size Aperture
- 2.3.1 Primary Sound Field with a Finite Size Aperture2.3.2 Control of Sound Propagation Through a Finite Size Aperture; 2.3.3 The Upper-Limit Frequency; 2.4 Control of Sound Radiation from an Opening of an Enclosure; 2.4.1 Sound Radiation from an Opening of an Enclosure; 2.4.2 Surface Control; 2.4.3 Boundary Control; 2.4.4 The Upper-Limit Frequency; 2.5 Control of Sound Transmission via an Opening into an Enclosure; 2.5.1 Sound Transmission via an Opening into an Enclosure; 2.5.2 Control with Planar Virtual Sound Barriers; 2.5.3 The Upper-Limit Frequency
- 3: Three-Dimensional Virtual Sound Barriers3.1 Problem Description; 3.2 Creation of a Quiet Zone in a Noisy Environment; 3.2.1 Formulation; 3.2.2 Two-Dimensional Simulations; 3.2.3 Three-Dimensional Simulations; 3.2.4 The 2.5-Dimensional Simulations; 3.2.5 Experiments; 3.2.6 Remarks; 3.3 Performance with a Diffracting Sphere Inside the Quiet Zone; 3.3.1 Formulation; 3.3.2 Simulations and Experiments; 3.3.3 Performance with a Moving Sphere; 3.4 Performance near a Reflective Surface; 3.4.1 Formulation; 3.4.2 Performance near a Reflective Surface
- 3.4.3 A Hybrid Virtual Sound Barrier near a Surface3.5 Error-Sensing Strategies; 3.5.1 Formulation; 3.5.2 Simulations; 3.5.3 A General Cost Function; 3.6 Virtual Error Sensors; 3.6.1 Formulation; 3.6.2 Simulations; 3.6.3 Remarks; 4: Applications; 4.1 Noise Radiation Control from Power Transformers in a Hemi-Closed Space; 4.2 Sound Transmission Control through an Open Window into a Room; 4.3 Implementation Issues; 5: Summary and Perspectives; 5.1 Summary; 5.2 Perspectives; 5.2.1 Future Research Topics; 5.2.2 Challenges for the Applications; References; Index
Mechanical sound : technology, culture, and public problems of noise in the twentieth century /