Statistical Vibroacoustics and Entropy Concept
Statistical vibroacoustics, also called statistical energy analysis (SEA) in the field of engineering, is born from the application of statistical physics concepts to the study of random vibration in mechanical and acoustical systems. This article is a discussion on the thermodynamic foundation for...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2010-12-01
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| Series: | Entropy |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1099-4300/12/12/2418/ |
| _version_ | 1798041630994857984 |
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| author | Alain Le Bot Antonio Carcaterra Denis Mazuyer |
| author_facet | Alain Le Bot Antonio Carcaterra Denis Mazuyer |
| author_sort | Alain Le Bot |
| collection | DOAJ |
| description | Statistical vibroacoustics, also called statistical energy analysis (SEA) in the field of engineering, is born from the application of statistical physics concepts to the study of random vibration in mechanical and acoustical systems. This article is a discussion on the thermodynamic foundation for that approach with particular emphasis devoted to the meaning of entropy, a concept missing in SEA. The theory focuses on vibration confined to the audio frequency range. In this frequency band, heat is defined as random vibration that is disordered vibration and temperature is the vibration energy per mode. Always in this frequency band, the concept of entropy is introduced and its meaning and role in vibroacoustics are enlightened, together with the related evolutionary equation. It is shown that statistical vibroacoustics is non-equilibrium thermodynamics applied to the audio range. |
| first_indexed | 2024-04-11T22:24:09Z |
| format | Article |
| id | doaj.art-ecd9718f278746fa80a5562e3b16d04e |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-04-11T22:24:09Z |
| publishDate | 2010-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-ecd9718f278746fa80a5562e3b16d04e2022-12-22T03:59:54ZengMDPI AGEntropy1099-43002010-12-0112122418243510.3390/e12122418Statistical Vibroacoustics and Entropy ConceptAlain Le BotAntonio CarcaterraDenis MazuyerStatistical vibroacoustics, also called statistical energy analysis (SEA) in the field of engineering, is born from the application of statistical physics concepts to the study of random vibration in mechanical and acoustical systems. This article is a discussion on the thermodynamic foundation for that approach with particular emphasis devoted to the meaning of entropy, a concept missing in SEA. The theory focuses on vibration confined to the audio frequency range. In this frequency band, heat is defined as random vibration that is disordered vibration and temperature is the vibration energy per mode. Always in this frequency band, the concept of entropy is introduced and its meaning and role in vibroacoustics are enlightened, together with the related evolutionary equation. It is shown that statistical vibroacoustics is non-equilibrium thermodynamics applied to the audio range.http://www.mdpi.com/1099-4300/12/12/2418/entropynon-equilibrium thermodynamicsvibroacousticsstatistical energy analysisfriction |
| spellingShingle | Alain Le Bot Antonio Carcaterra Denis Mazuyer Statistical Vibroacoustics and Entropy Concept Entropy entropy non-equilibrium thermodynamics vibroacoustics statistical energy analysis friction |
| title | Statistical Vibroacoustics and Entropy Concept |
| title_full | Statistical Vibroacoustics and Entropy Concept |
| title_fullStr | Statistical Vibroacoustics and Entropy Concept |
| title_full_unstemmed | Statistical Vibroacoustics and Entropy Concept |
| title_short | Statistical Vibroacoustics and Entropy Concept |
| title_sort | statistical vibroacoustics and entropy concept |
| topic | entropy non-equilibrium thermodynamics vibroacoustics statistical energy analysis friction |
| url | http://www.mdpi.com/1099-4300/12/12/2418/ |
| work_keys_str_mv | AT alainlebot statisticalvibroacousticsandentropyconcept AT antoniocarcaterra statisticalvibroacousticsandentropyconcept AT denismazuyer statisticalvibroacousticsandentropyconcept |