Influence of Double-Panel Structure Modification on Vibroacoustical Properties of a Rigid Device Casing

• Autorzy: Chrapońska Anna , Rzepecki Jarosław , Mazur Krzysztof , Wrona Stanisław , Pawełczyk Marek

Identyfikatory

DOI

10.24425/aoa.2020.132488

• Języki publikacji: EN

Abstrakty

EN

Nowadays, noise generated by devices is a serious issue in industry and in everyday life, because it may cause health damage to humans. In this research, a cubic rigid device casing built of double-panel thin steel walls is employed to reduce noise emitted from an enclosed noise source. Double-panel structure is used because of good sound insulation it provides. There exist three main groups of noise reduction methods, i.e. passive, semi-active and active. In this paper, a semi-active modification of double-panel structure is applied and examined. The bistable actuator (solenoid) mounted between incident and radiating plates changes its state due to applied constant voltage, causing the coupling of plates. Experimentally measured natural frequencies and modeshapes of the structure are compared to the simulation results. The influence of proposed modification on dynamical properties of the structure is analyzed and discussed.

Słowa kluczowe

EN

noise control; vibration control; double-panel structures; active casing; natural frequencies; modeshapes

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2020
• Tom: Vol. 45, No. 1
• Strony: 119--127
• Opis fizyczny: Bibliogr. 20 poz., fot., rys., tab., wykr.

Twórcy

autor

Chrapońska Anna

• Silesian University of Technology, Institute of Automatic Control, Akademicka 16, 44-100 Gliwice, Poland

autor

Rzepecki Jarosław

• Silesian University of Technology, Institute of Automatic Control, Akademicka 16, 44-100 Gliwice, Poland

autor

Mazur Krzysztof

• Silesian University of Technology, Institute of Automatic Control, Akademicka 16, 44-100 Gliwice, Poland

autor

Wrona Stanisław

• Silesian University of Technology, Institute of Automatic Control, Akademicka 16, 44-100 Gliwice, Poland

autor

Pawełczyk Marek

• Silesian University of Technology, Institute of Automatic Control, Akademicka 16, 44-100 Gliwice, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).