空气弹簧质量系统对木塑复合材料吸声性能的影响.pdfVIP

第一届全国生物质材料科学与技术学术研讨会 中国．北京：2007年8月19日—21日 of onthe ofsound Effect QualitySystemproperties Air-Spring ofWoodPlastic absorption Composites MengYu-jiel，LiDa—gan91，WuZheng．yuan2，DingJian．shen92，Si．qin92 JUFENGNewMaterials (1 210037；2 Co．，Ltd．) NanjingForestryUniversity．NanjingNanjing or Abstract：Becausetheinnerstructureofwood havea surface nolacuna plasticcomposites，whichlarge density,has seriate sound coefficientofWPCin frommiddle tolow hole，the absorption frequencyspectrum,rangingfrequency low．Thisfocusesonthestructure resultis a frequency,ispaper called“air-springquailtysystem’．Thethat：Leaving orair behindWPCboardmakcs makesthe the cavity interlayer an‘‘air-springqualitysystem’．Thissystem sympathetic inthelow withthe ofair vibration increasethickness，the frequencyappear frequencyspectrum．Along peal【absorption coefficient tothelower cavitieswillsavethemamrialaswellasitincreasesthe frequencygoes frequencies．The coefficientinlow absorption f}cquencyspectrum． Keywords：Wood absorption polymercomposite；soundCOe位cient；Air-springqualitysystem 空气弹簧质量系统对木塑复合材料吸声性能的影响 孟玉洁1李大纲1吴正元2丁建生2斯庆2 (1南京林业大学，南京210037s 2南京聚锋新材料有限公司，南京210000) 摘要：木塑复合材料由于面密度较大，内部结构中没有微小的间隙和连续的孔洞，导致其在中低频段吸声系数很 低。该文研究了木塑复合材料与空气层构成的空气弹簧质量系统。结果表明：在木