宇航材料工艺http：//www.yhclgy.com2023年第1期连续型和非连续型蜂窝芯材的共振吸声结构性能研究刘杰1纪双英1焦丽娟2杨进军1（1中国航空制造技术研究院复合材料技术中心，北京101300）（2中国飞机强度研究所，西安710065）文摘以芳纶纸蜂窝、内嵌树脂隔板和微穿孔面板为原料，制备了连续和非连续双自由度共振吸声结构，对两种共振吸声结构的力学性能和吸声系数进行对比研究。结果表明：连续蜂窝芯材所制备共振吸声结构的压缩和拉伸性能高于非连续型共振吸声结构，其中非稳定型压缩强度和拉伸强度高19%，稳定型压缩强度高32%，稳定型压缩模量高43%，剪切性能基本相当；两层蜂窝芯材容易出现孔格错位（非连续型共振吸声结构），引起错位区域的微孔堵塞，使该结构的共振吸收峰与理论值出现较大差异。关键词蜂窝，共振吸声结构，吸声系数，微穿孔，双自由度中图分类号：TB132DOI：10.12044/j.issn.1007-2330.2023.01.011ResearchonthePerformancesofResonantSound-absorbingStructureBasedonContinuousandDiscontinuousHoneycombCoreMaterialsLIUJie1JIShuangying1JIAOLijuan2YANGJinjun1（1CompositeCenter，AVICManufacturingTechnologyInstitute，Beijing101300）（2AircraftStrengthResearchInstituteofChina，Xi′an710065）AbstractContinuousanddiscontinuousdualdegreeoffreedomresonancesoundabsorptionstructureswerepreparedbyusingaramidpaperhoneycombs，embeddedresinpartitionsandmicro-perforatedpanels.Themechanicalpropertiesandsoundabsorptioncoefficientsofthetworesonancesoundabsorptionstructureswerecompared.Theresultsshowthat：thecompressionandtensileperformancesoftheresonanceabsorptionstructureofthecontinuoushoneycombcorematerialarehigherthatofdiscontinuoushoneycombcorematerial.Amongthem，theunstabilizedcompressivestrengthandtensilestrengthare19%higher，thestablecompressivestrengthis32%higher，thestablecompressivemodulusis43%higher，andtheshearperformanceofthestructureisbasicallyequal.Atthesametime，thetwo-layerhoneycombcorematerialispronetocelldislocation（discontinuousresonancesoundabsorptionstructure），whichcausesthemicroporesblockinginthedislocationarea，andthepeakoftheresonanceabsorptionstructureisgreatlydifferentfromthetheoreticalvalue.KeywordsHoneyco...
