基于正交试验法的城轨车辆地板组成结构隔声设计

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中图分类号： 文献标志码：A 文章编号：2095-2945（2026）03-0118-04

Abstract：Through thedesignofthefloostructureofurbanrail vehicles，excelentsoundinsulationperformancecanbe achievedwhiletakingintoacounttheflorweightandmaterialcost.Startingwiththesoundinsulationdesignofurbanrail vehiclefloorstructures，thispaperdiscussesthecompositionstructureofthevehiclefloorindetail.Takingintoaountthe material parametercharacteristicsofthemaincomponentssuchaselasticsupport，aluminumhoneycombfloo，adjustmentmat， coldprof material，soundinsulationmat，dampingpadle，etc.inthecompositionstructure，anorthogonaltestwithfourfactors andfourlevelsisdesigned.Simulationcalculationsareusedtosimulatetheweightedsoundinsulationof16groupsofloor compositestructures，andtheorthogonaltestresultsareoptimized.Basedontheweightedsoundinsulationvolume，weightand costfactorsofthecombinedcomponents，thesoundinsulationcostperformanceof thecombinedcomponentswascomprehensively evaluated，andtheoptimalcombinationmethodwasobtainedasfllows：thethicknessoftheflorclothis2mm;thethicknsof thesoundinsulationmatis2mm;thecold-profmaterialispre-oxidizedsilkwol;andthethicknessofthedampingsluryis 6mmasthesoundinsulationdesignschemefortheflorstructureofurbanrailvehicles.Thisresearchmethodcanbewidely applied tothesound insulation designof interior structuressuchasside wallsandrof panelsof urbanrail vehicles.

Keywords：urban rail vehicle; sound insulation; floor; orthogonal test；optimization

城轨交通具有低能耗、零污染等优点，很好地契合国家绿色、环保、可持续发展的要求，且运载量大、准时、方便、快捷，很好地缓解了各大城市出行的压力。（剩余3710字）