Vibroacoustic modeling of cascade panels system involving apertures and micro-perforated elements

Xiang Yu, Li Cheng, Jean Louis Guyader

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

8 Citations (Scopus)

Abstract

Vibroacoustic systems, involving cascade structures mutually coupled through partially open/close acoustic cavities, are commonly seen in various applications. The modeling of such systems is challenging since the two adjacent acoustic domains separated by the partial partition are connected both structurally and acoustically, where the continuity conditions along each separation interface cannot be conveniently described. A formulation based on Patch Transfer Function (PTF) approach may potentially offer the solution for tackling such problems, provided that the treatment of the aperture can be integrated into the PTF framework. In this paper, the concept of "Compound Panel" is proposed, so that the parallel coupling between two adjacent acoustic domains can be converted into serial connection. In the proposed formulation, an aperture is modeled as equivalent virtual panel element, to be combined with the structural panels (either perforated or solid) to form a compound panel subsystem. This formulation simplifies the assembling procedure, while enhances the capability of the PTF method in handling system complexities. By investigating into several typical configurations, the versatility and efficiency of the method as well as the underlying physics are demonstrated.
Original languageEnglish
Title of host publication20th International Congress on Sound and Vibration 2013, ICSV 2013
PublisherInternational Institute of Acoustics and Vibrations
Pages3384-3391
Number of pages8
Publication statusPublished - 1 Jan 2013
Event20th International Congress on Sound and Vibration 2013, ICSV 2013 - Bangkok, Thailand
Duration: 7 Jul 201311 Jul 2013

Conference

Conference20th International Congress on Sound and Vibration 2013, ICSV 2013
Country/TerritoryThailand
CityBangkok
Period7/07/1311/07/13

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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