类方形蜂窝夹层结构的声振特性研究  

Acoustic-vibration characteristics of quasi-square honeycomb sandwich structure

作　　者：陈永清 仇琨 李响 殷圣地[2] 赵恒 潘志宇 Chen Yongqing;Qiu Kun;Li Xiang;Ying Shengdi;Zhao Heng;Pan Zhiyu(Hubei Key Laboratory of Hydroelectric Machinery Design&Maintenance,China Three Gorges University,Yichang 443002,China;College of Mechanical and Power Engineering,China Three Gorges University,Yichang 443002,China;Hubei Engineering Research Center for Graphite Additive Manufacturing Technology and Equipment,China Three Gorges University,Yichang 443002,China)

机构地区：[1]三峡大学水电机械设备设计与维护湖北省重点实验室,湖北宜昌443002 [2]三峡大学机械与动力学院,湖北宜昌443002 [3]三峡大学石墨增材制造技术与装备湖北省工程研究中心,湖北宜昌443002

出　　处：《武汉科技大学学报》2023年第4期311-320,共10页Journal of Wuhan University of Science and Technology

基　　金：国家自然科学基金资助项目(51975325,51305232);三峡大学石墨增材制造技术与装备湖北省工程研究中心开放基金项目(HRCGAM202108).

摘　　要：基于Reddy高阶剪切变形理论和双三角函数法,建立了类方形蜂窝夹层结构振动固有频率理论模型和隔声特性理论模型,运用Workbench和声学软件Virtual Lab分别对此夹层结构进行振动模态分析和声振耦合分析。结果表明,影响类方形蜂窝夹层结构隔声量的3个主要因素按所占权重由大到小依次为夹芯壁厚、面板厚度、夹芯高度。与传统六边形蜂窝夹层结构相比,类方形蜂窝夹层结构隔声性能更好。According to Reddy high-order shear deformation theory and double trigonometric function method,the vibration natural frequency theoretical model and sound insulation characteristic theoretical model of quasi-square honeycomb sandwich structure were established,and the vibration modal analysis and acoustic coupling analysis were performed by Workbench and acoustic software Virtual Lab,respectively.The results show that the three main factors affecting sound insulation of honeycomb sandwich structure from high to low are sandwich wall thickness,panel thickness and sandwich height.Compared with the traditional hexagonal honeycomb,the sound insulation performance of the honeycomb sandwich structure is better.

关 键 词：类方形蜂窝夹层结构 声振特性 固有频率 隔声量 减振降噪 

分 类 号：TB333[一般工业技术—材料科学与工程]