Corrected Statistical Energy Analysis Model In A Non-Reverberant Acoustic Space
Statistical Energy Analysis (SEA) is a well-known method to analyze the flow of acoustic and vibration energy in a complex structure. This study investigates the application of the corrected SEA model in a non-reverberant acoustic space where the direct field component from the sound source dominate...
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2021
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my.utem.eprints.253692021-12-20T14:49:44Z http://eprints.utem.edu.my/id/eprint/25369/ Corrected Statistical Energy Analysis Model In A Non-Reverberant Acoustic Space Putra, Azma Wan Mohamad, Wan Mohd Farid Al Munawir Herawan, Safarudin Statistical Energy Analysis (SEA) is a well-known method to analyze the flow of acoustic and vibration energy in a complex structure. This study investigates the application of the corrected SEA model in a non-reverberant acoustic space where the direct field component from the sound source dominates the total sound field rather than a diffuse field in a reverberant space which the classical SEA model assumption is based on. A corrected SEA model is proposed where the direct field component in the energy is removed and the power injected in the subsystem considers only the remaining power after the loss at first reflection. Measurement was conducted in a box divided into two rooms separated by a partition with an opening where the condition of reverberant and non-reverberant can conveniently be controlled. In the case of a non-reverberant space where acoustic material was installed inside the wall of the experimental box, the signals are corrected by eliminating the direct field component in the measured impulse response. Using the corrected SEA model, comparison of the coupling loss factor (CLF) and damping loss factor (DLF) with the theory shows good agreement Tech Science Press 2021 Article PeerReviewed text en http://eprints.utem.edu.my/id/eprint/25369/2/CORRECTED_SEA_SANDV2021.PDF Putra, Azma and Wan Mohamad, Wan Mohd Farid and Al Munawir and Herawan, Safarudin (2021) Corrected Statistical Energy Analysis Model In A Non-Reverberant Acoustic Space. Sound and Vibration, 55 (3). pp. 203-219. ISSN 1541-0161 https://www.techscience.com/sv/v55n3/43108 10.32604/sv.2021.015938 |
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Statistical Energy Analysis (SEA) is a well-known method to analyze the flow of acoustic and vibration energy in a complex structure. This study investigates the application of the corrected SEA model in a non-reverberant acoustic space where the direct field component from the sound source dominates the total sound field rather than a
diffuse field in a reverberant space which the classical SEA model assumption is based on. A corrected SEA model is proposed where the direct field component in the energy is removed and the power injected in the subsystem considers only the remaining power after the loss at first reflection. Measurement was conducted in a box divided into two rooms separated by a partition with an opening where the condition of reverberant and non-reverberant can conveniently be controlled. In the case of a non-reverberant space where acoustic material was installed inside the wall of the experimental box, the signals are corrected by eliminating the direct field component in the measured impulse response. Using the corrected SEA model, comparison of the coupling loss factor (CLF) and damping loss factor (DLF) with the theory shows good agreement |
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Article |
author |
Putra, Azma Wan Mohamad, Wan Mohd Farid Al Munawir Herawan, Safarudin |
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Putra, Azma Wan Mohamad, Wan Mohd Farid Al Munawir Herawan, Safarudin Corrected Statistical Energy Analysis Model In A Non-Reverberant Acoustic Space |
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Putra, Azma Wan Mohamad, Wan Mohd Farid Al Munawir Herawan, Safarudin |
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Putra, Azma |
title |
Corrected Statistical Energy Analysis Model In A Non-Reverberant Acoustic Space |
title_short |
Corrected Statistical Energy Analysis Model In A Non-Reverberant Acoustic Space |
title_full |
Corrected Statistical Energy Analysis Model In A Non-Reverberant Acoustic Space |
title_fullStr |
Corrected Statistical Energy Analysis Model In A Non-Reverberant Acoustic Space |
title_full_unstemmed |
Corrected Statistical Energy Analysis Model In A Non-Reverberant Acoustic Space |
title_sort |
corrected statistical energy analysis model in a non-reverberant acoustic space |
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Tech Science Press |
publishDate |
2021 |
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http://eprints.utem.edu.my/id/eprint/25369/2/CORRECTED_SEA_SANDV2021.PDF http://eprints.utem.edu.my/id/eprint/25369/ https://www.techscience.com/sv/v55n3/43108 |
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