窓ガラスを構成要素とする直方体キャビティにおける強連成モードとその抑制（実験的アプローチ）

• 福田 良司

  東京都立産業技術研究センター

• 田中 信雄

  首都大学東京

書誌事項

タイトル別名

• Structural-acoustic coupling effect of a rectangular cavity comprising a windowpane and five rigid walls and its control (Experimental approach)

抄録

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.

収録刊行物

• 日本機械学会論文集

  日本機械学会論文集 81 (830), 15-00075-15-00075, 2015

  一般社団法人 日本機械学会

キーワード

• Structurally-acoustically coupled rectangular cavity
• Windowpane
• Vibration control
• Acoustic control
• Operational modal analysis
• Strongly coupled mode
• Isolated implosive mode

詳細情報

• CRID: 1390001205514753920
• NII論文ID: 130005105243
• DOI: 10.1299/transjsme.15-00075
• ISSN: 21879761
• Web Site: https://www.jstage.jst.go.jp/article/transjsme/81/830/81_15-00075/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可