An Improved MSA Model for Evaluating the Sound Transmission Loss of a Rectangular Plate for Diffuse Field Incidence

• Autorzy: Kim Myong-Jin , Won Kyong-Su , Ri Chol-Su

Identyfikatory

DOI

10.24425/aoa.2019.128489

• Języki publikacji: EN

Abstrakty

EN

This paper presents an approximate analytical model for estimating the transmission loss (TL) of a finite rectangular plate in the low frequency range, which is based on the modal summation approach (MSA) taking into account the modal radiation impedance and fluid loading. The mode-dependent radiation resistance is calculated using the Rayleigh integral. The fluid loading is taken into account through the natural frequency modified by the added mass. The results are compared with the ones of Statistical Energy Analysis (SEA) coupled with FEM and FEM coupled with BEM. In addition, the effects of the various vibration modes and the fluid loading on TL, and a way for reducing the calculation time are discussed.

Słowa kluczowe

EN

transmission loss; low frequency range; natural vibration mode; diffuse field incidence

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2019
• Tom: Vol. 44, No. 2
• Strony: 259--265
• Opis fizyczny: Bibliogr. 21 poz., rys., tab., wykr.

Twórcy

autor

Kim Myong-Jin

• Department of Physics, Kim Il Sung University, Pyongyang, Democratic People’s Republic of Korea

autor

Won Kyong-Su

• Department of Physics, Kim Il Sung University, Pyongyang, Democratic People’s Republic of Korea

autor

Ri Chol-Su

• Department of Physics, Kim Il Sung University, Pyongyang, Democratic People’s Republic of Korea

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).