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http://hdl.handle.net/10397/96112
Title: | On the modeling of sound transmission through a mixed separation of flexible structure with an aperture | Authors: | Yu, X Cheng, L Guyader, JL |
Issue Date: | May-2014 | Source: | Journal of the Acoustical Society of America, May 2014, v. 135, no. 5, p. 2785-2796 | Abstract: | Modeling sound transmission among acoustic media through mixed separations, consisting of both rigid/flexible structures with apertures, is a challenging task. The coexistence of both structural and acoustic transmission paths through the same coupling surface adds system complexities, hampering the use of existing sub-structuring modeling techniques when the system configuration becomes complex. In the present work, a virtual panel treatment is proposed to model thin apertures involved in such complex vibroacoustic systems. The proposed virtual panel considers an aperture as an equivalent structural component, which can be integrated with the solid/flexible structure to form a unified compound interface. This allows handling the entire compound interface as a pure structural element, thus providing an efficient and versatile tool to tackle system complexities when using sub-structuring techniques. The accuracy and convergence of the method are investigated and validated, and the effective thickness range allowing for the virtual panel treatments is determined. The capability and the flexibility of the proposed formulation are demonstrated through several numerical examples, with underlying physics being explored. | Publisher: | Acoustical Society of America | Journal: | Journal of the Acoustical Society of America | ISSN: | 0001-4966 | EISSN: | 1520-8524 | DOI: | 10.1121/1.4870707 | Rights: | © 2014 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America. The following article appeared in Yu, X., Cheng, L., & Guyader, J. L. (2014). On the modeling of sound transmission through a mixed separation of flexible structure with an aperture. The Journal of the Acoustical Society of America, 135(5), 2785-2796 may be found at http://dx.doi.org/10.1121/1.4870707 |
Appears in Collections: | Journal/Magazine Article |
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