层合板结构声辐射模态传感器分析与测量  

Analysis and test of acoustic radiation mode sensors of laminated composite plates

作　　者：吴锦武[1] 原海朋 毛崎波[1] 

机构地区：[1]南昌航空大学飞行器工程学院,南昌330063

出　　处：《振动与冲击》2016年第13期26-30,共5页Journal of Vibration and Shock

基　　金：国家自然科学基金项目(51265038)

摘　　要：利用压电高分子材料聚偏氟乙烯(Polyvinylidene fluoride,PVDF)设计一种阵列式传感器来测量复合材料层合板结构的声辐射模态幅值。以声辐射模态传感器设计理论作为基础,进一步分析了声辐射模态传感器的测量精度影响因素,即粘贴位置和粘贴方向等。利用了声辐射模态传感器对层合板结构的固有频率、声辐射模态幅值以及声功率的进行测试分析。并对实验数据与理论仿真结果进行了分析。An array type sensor was designed with polyvinylidene fluoride and the sensor could be used to measure acoustic radiation modes＇ amplitudes of a laminated composite plate. Using the design theory of acoustic radiation mode sensors published,the measurement accuracy factors of the sensor were analyzed,such as sensor pasted location and direction. Natural frequencies,the first order acoustic radiation mode＇s amplitude and the acoustic radiation power of the laminated composite plate were measured with the sensor. The tests results and the numerical simulation results were analyzed.

关 键 词：层合板 声辐射模态 压电传感器 测试分析 

分 类 号：TB332[一般工业技术—材料科学与工程] TH113.1[机械工程—机械设计及理论]