The Effects of Trunk Cavity and Air-Gaps in the Acoustic Response of a Passenger Vehicle

• Autorzy: Oktav A.

Identyfikatory

DOI

10.1515/aoa-2017-0045

• Języki publikacji: EN

Abstrakty

EN

The effects of additional cavities and air-gaps in the acoustic response of a passenger vehicle are investigated. It is observed that the cabin cavity and the trunk cavity of the passenger vehicle are connected through an aperture in the rear seat. In the trunk cavity of the vehicle, there are two more air-gaps which are designed as countermeasures to trunk lid slam noise. It is established that acoustic modes and acoustic eigenfrequencies of the vehicle are altered through the trunk cavity and its air-gaps. To develop an analytical solution, the actual acoustic cavity is simplified into a rectangular shape. In the analytical solution, the coupling of trunk and cabin cavities is considered. It is shown that the computational analysis results match well with the results of the analytical solution proposed. Further, the resonator effect of air-gaps present in the trunk cavity is examined.

Słowa kluczowe

EN

acoustic coupling; acoustic eigenfrequencies; acoustic modes; acoustic response; air-gap; cabin cavity; Helmholtz resonator; passenger vehicle; trunk cavity; wave number

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2017
• Tom: Vol. 42, No. 3
• Strony: 433--440
• Opis fizyczny: Bibliogr. 25 poz., fot., rys., tab., wykr.

Twórcy

autor

Oktav A.

• Vibration and Acoustics Laboratory, Department of Mechanical Engineering, Bogazici University, Bebek 34342 Istanbul, Turkey

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).