Structural-acoustic coupling effect of a rectangular cavity comprising a windowpane and five rigid walls and its control (Experimental approach)
This paper deals with a structurally-acoustically coupled rectangular cavity comprising a flexible windowpane and five rigid walls. It is the purpose of this paper to perform active control of a windowpane with a view to enhancing its transmissibility loss. First, using an operational modal analysis...
| Main Authors: | , |
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| Format: | Article |
| Language: | Japanese |
| Published: |
The Japan Society of Mechanical Engineers
2015-09-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/81/830/81_15-00075/_pdf/-char/en |
| _version_ | 1798018086676201472 |
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| author | Ryoji FUKUDA Nobuo TANAKA |
| author_facet | Ryoji FUKUDA Nobuo TANAKA |
| author_sort | Ryoji FUKUDA |
| collection | DOAJ |
| description | This paper deals with a structurally-acoustically coupled rectangular cavity comprising a flexible windowpane and five rigid walls. It is the purpose of this paper to perform active control of a windowpane with a view to enhancing its transmissibility loss. First, using an operational modal analysis the coupling effect emerging on the windowpane under a strongly coupled cavity is investigated. It is then found that there exist two kinds of coupled modes: one is dominated by an in vacuo vibration mode of a panel and the other by an acoustic cavity mode. Among the latter modes an isolated implosive mode is found, which is predominantly governed by an acoustic cavity mode due to a specific support of a windowpane. It is further revealed that the isolated implosive mode may not be suppressed by vibration control, but by acoustic control only. Finally, active structural-acoustic control is performed on the windowpane, demonstrating sufficient control effect over all the coupled modes with synergy effect as a result of employing both vibration and acoustic control. |
| first_indexed | 2024-04-11T16:18:05Z |
| format | Article |
| id | doaj.art-d37026643b934613b734b01ec9c008a8 |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-11T16:18:05Z |
| publishDate | 2015-09-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-d37026643b934613b734b01ec9c008a82022-12-22T04:14:27ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612015-09-018183015-0007515-0007510.1299/transjsme.15-00075transjsmeStructural-acoustic coupling effect of a rectangular cavity comprising a windowpane and five rigid walls and its control (Experimental approach)Ryoji FUKUDA0Nobuo TANAKA1Tokyo Metropolitan Industrial Technology Research Institute, Research and Development DepartmentTokyo Metropolitan UniversityThis paper deals with a structurally-acoustically coupled rectangular cavity comprising a flexible windowpane and five rigid walls. It is the purpose of this paper to perform active control of a windowpane with a view to enhancing its transmissibility loss. First, using an operational modal analysis the coupling effect emerging on the windowpane under a strongly coupled cavity is investigated. It is then found that there exist two kinds of coupled modes: one is dominated by an in vacuo vibration mode of a panel and the other by an acoustic cavity mode. Among the latter modes an isolated implosive mode is found, which is predominantly governed by an acoustic cavity mode due to a specific support of a windowpane. It is further revealed that the isolated implosive mode may not be suppressed by vibration control, but by acoustic control only. Finally, active structural-acoustic control is performed on the windowpane, demonstrating sufficient control effect over all the coupled modes with synergy effect as a result of employing both vibration and acoustic control.https://www.jstage.jst.go.jp/article/transjsme/81/830/81_15-00075/_pdf/-char/enstructurally-acoustically coupled rectangular cavitywindowpanevibration controlacoustic controloperational modal analysisstrongly coupled modeisolated implosive mode |
| spellingShingle | Ryoji FUKUDA Nobuo TANAKA Structural-acoustic coupling effect of a rectangular cavity comprising a windowpane and five rigid walls and its control (Experimental approach) Nihon Kikai Gakkai ronbunshu structurally-acoustically coupled rectangular cavity windowpane vibration control acoustic control operational modal analysis strongly coupled mode isolated implosive mode |
| title | Structural-acoustic coupling effect of a rectangular cavity comprising a windowpane and five rigid walls and its control (Experimental approach) |
| title_full | Structural-acoustic coupling effect of a rectangular cavity comprising a windowpane and five rigid walls and its control (Experimental approach) |
| title_fullStr | Structural-acoustic coupling effect of a rectangular cavity comprising a windowpane and five rigid walls and its control (Experimental approach) |
| title_full_unstemmed | Structural-acoustic coupling effect of a rectangular cavity comprising a windowpane and five rigid walls and its control (Experimental approach) |
| title_short | Structural-acoustic coupling effect of a rectangular cavity comprising a windowpane and five rigid walls and its control (Experimental approach) |
| title_sort | structural acoustic coupling effect of a rectangular cavity comprising a windowpane and five rigid walls and its control experimental approach |
| topic | structurally-acoustically coupled rectangular cavity windowpane vibration control acoustic control operational modal analysis strongly coupled mode isolated implosive mode |
| url | https://www.jstage.jst.go.jp/article/transjsme/81/830/81_15-00075/_pdf/-char/en |
| work_keys_str_mv | AT ryojifukuda structuralacousticcouplingeffectofarectangularcavitycomprisingawindowpaneandfiverigidwallsanditscontrolexperimentalapproach AT nobuotanaka structuralacousticcouplingeffectofarectangularcavitycomprisingawindowpaneandfiverigidwallsanditscontrolexperimentalapproach |