Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/106300
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Mechanical Engineering | - |
dc.creator | Zhang, X | en_US |
dc.creator | Cheng, L | en_US |
dc.creator | Liu, Y | en_US |
dc.creator | Du, J | en_US |
dc.date.accessioned | 2024-05-09T00:52:34Z | - |
dc.date.available | 2024-05-09T00:52:34Z | - |
dc.identifier.issn | 0022-460X | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/106300 | - |
dc.language.iso | en | en_US |
dc.publisher | Elsevier Ltd | en_US |
dc.rights | © 2021 Elsevier Ltd. All rights reserved. | en_US |
dc.rights | © 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. | en_US |
dc.rights | The following publication Zhang, X., Cheng, L., Liu, Y., & Du, J. (2021). Acoustic modelling and analyses of geometrically complex systems with Micro-perforated panels. Journal of Sound and Vibration, 499, 115995 is available at https://doi.org/10.1016/j.jsv.2021.115995. | en_US |
dc.subject | Geometrically complex systems | en_US |
dc.subject | Hybrid sound reduction | en_US |
dc.subject | Micro-perforated panels | en_US |
dc.subject | Modelling method | en_US |
dc.subject | Optimization | en_US |
dc.title | Acoustic modelling and analyses of geometrically complex systems with micro-perforated panels | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.volume | 499 | en_US |
dc.identifier.doi | 10.1016/j.jsv.2021.115995 | en_US |
dcterms.abstract | Modeling of vibro/acoustic systems with embedded acoustic components of complex geometries is a challenging task. In particular, the presence of irregular-shaped acoustic modules, which are usually treated by finite element (FE) method, increases system complexities and makes the use of existing sub-structuring modeling techniques cumbersome. To tackle the problem, an efficient three-dimensional sub-structuring modeling method is proposed in this paper. As an important sub-structural module, a dedicated coordinate transformation technique is established to cope with polygon acoustic components. The embodiment of the technique into the existing sub-structuring framework avoids the use of conventional FE modules, thus increasing the flexibility and the efficiency of the simulation, conducive to system optimization. As an example, noise reduction in a duct, comprising a Micro-Perforated Panel (MPP) liner and a trapezoidal expansion chamber, is examined. The accuracy of the proposed model is firstly validated against both FE simulations and experiments. Numerical results uncover a dual hybrid sound reduction process, namely sound absorption of the MPP and wave reflection due to the geometry changes of the duct. Optimizations based on the proposed sub-structuring technique allow one to balance the hybrid reflective-absorptive effects through proper parameter tuning to maximize the sound attenuation within a prescribed frequency range. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Journal of sound and vibration, 12 May 2021, v. 499, 115995 | en_US |
dcterms.isPartOf | Journal of sound and vibration | en_US |
dcterms.issued | 2021-05-12 | - |
dc.identifier.scopus | 2-s2.0-85100619357 | - |
dc.identifier.eissn | 1095-8568 | en_US |
dc.identifier.artn | 115995 | en_US |
dc.description.validate | 202405 bcch | - |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | ME-0073 | - |
dc.description.fundingSource | RGC | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 44750668 | - |
dc.description.oaCategory | Green (AAM) | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
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Zhang_Acoustic_Modelling_Analyses.pdf | Pre-Published version | 2.46 MB | Adobe PDF | View/Open |
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