Design of multi-layered porous fibrous metals for optimal sound absorption in the low frequency range-中国期刊网

摘要 Wepresentadesignmethodforcalculatingandoptimizingsoundabsorptioncoefficientofmulti-layeredporousfibrousmetals(PFM)inthelowfrequencyrange.PFMissimplifiedasanequivalentidealizedsheetwithallmetallicfibersalignedinonedirectionanddistributedinperiodichexagonalpatterns.Weuseaphenomenologicalmodelintheliteraturetoinvestigatetheeffectsofporegeometricalparameters(fiberdiameterandgap)onsoundabsorptionperformance.ThesoundabsorptioncoefficientofmultilayeredPFMsiscalculatedusingimpedancetranslationtheorem.Todemonstratethevalidityofthepresentmodel,wecomparethepredictedresultswiththeexperimentaldata.Withtheaveragesoundabsorption(lowfrequencyrange)astheobjectivefunctionandthefibergapsasthedesignvariables,anoptimizationmethodformulti-layeredfibrousmetalsisproposed.Anewfibrouslayoutwithgivenporosityofmulti-layeredfibrousmetalsissuggestedtoachieveoptimallowfrequencysoundabsorption.Thesoundabsorptioncoefficientoftheoptimalmulti-layeredfibrousmetalishigherthanthesinglelayeredfibrousmetal,andasignificanteffectofthefibrousmaterialonsoundabsorptionisfoundduetothesurfaceporosityofthemulti-layeredfibrous.

1ZHANG Chao;YAN Shouguo;ZHANG Bixing;SHI Fangfang. Research on the propagation of guided waves in multi-layered plates.声学,2017-04.
2Nataliya Samoylenko Vitaliy Didkovskiy. The Evaluation of the Sound Insulation of Partition in Expanded Frequency Range.物理,2013-04.
3NG Shiu Cho. AN APPROACH TO ANALYSIS OF SINGLE PIER BASED ON THE VARIATIONAL PRINCIPLE IN MULTI-LAYERED SOIL.固体力学,2001-03.
4Yu Du;Jing-Ming Li;He-Hou Zong;Zhan-Feng Yang;Wei-Bin Zhang. Absorption Spectrum Studies on the RDX Crystals with Different Granularity in Terahertz Frequency Range.物理电子学,2014-02.
5LUO Bin;LI Jun;HE Sai-ling. A fast and accurate method for the simulation of the diffusing temporal light correlation in multi-layered turbid media.物理电子学,2005-01.
6Zhan Yongxiang. Dynamic analysis of slab track on multi-layered transversely isotropic saturated soils subjected to train loads.地震学,2014-04.
7SONG Wei XIE Kang. Optimal design of a multi-mode interference splitter based on SOI.物理电子学,2008-02.
8Wang Futong;Tao Xiaxin;Xie Lili;Siddharthan Raj. Green's function of multi-layered poroelastic half-space for models of ground vibration due to railway traffic.地震学,2017-02.
9Kai Zhu;Yan-Jin Xu;Tao Jing;Hong-Liang Hou. Fracture behavior of a composite composed by Ti-aluminide multi-layered and continuous-SiCrreinforced Ti-matrix.金属材料,2017-12.
10Parviz Ghadimi;Ahreza Bolghasi;Mohammad A. Feizi Chekab;Rahim Zamanian. Numerical Investigation of Transmission of Low Frequency Sound Through a Smooth Air-water Interface.船舶与海洋工程,2015-03.

Design of multi-layered porous fibrous metals for optimal sound absorption in the low frequency range

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Design of multi-layered porous fibrous metals for optimal sound absorption in the low frequency range

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