爆炸冲击波参数薄膜测试法研究  

The study on membrane method for parameter measurement of explosion shock wave

作　　者：姬建荣[1] 苏健军[1] 孔德仁[2] 潘文[1] 胡东常[1] 张俊锋[1] JI Jianrong SU Jianjun KONG Deren PAN Wen HU Dongchang ZHANG Junfeng(Xi＇ an Modern Chemistry Research Institute,Xi＇ an 710065, China School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]西安近代化学研究所,陕西西安710065 [2]南京理工大学机械工程学院,江苏南京210094

出　　处：《中国测试》2016年第10期21-24,62,共5页China Measurement & Test

基　　金：国家自然科学基金(11372143)

摘　　要：为可靠获取爆炸冲击波超压参数,设计一种铝箔薄膜结构进行实验。通过控制材料状态、结构频率特性等参数,使其满足一定毁伤准则,建立力学模型对其进行分析。利用激波管装置对薄膜变形进行标定,并将激波反射载荷转换为入射压,采用最小二乘法进行线性拟合,得到薄膜最大变形挠度与激波入射压峰值之间关系。结果表明,可通过铝箔薄膜最大变形挠度反映爆炸场中0.05~0.35 MPa范围内的入射冲击波超压,为冲击波测试工程应用提供新的途径。A kind of aluminum membrane was designed to get the shock wave overpressure parameters reliably which was made to meet certain damage criteria through controlling the state parameters of materials and structural frequency characteristics, and a mechanical model was established to analyze the process. Then the shock tube was used to calibrate the deformation of membrane, the relationship between max deformation deflection of the membrane and incident overpressure that was converted from reflection load pressure was established through linear fitting by least squares method. The results show that max deformation deflection of the aluminum foil membrane can reflect the scope of explosion incident shock wave overpressure from 0.05 MPa to 0.35 MPa. It can provide a new way for blast engineering test application.

关 键 词：爆炸力学 冲击波 薄膜 激波管 挠度 

分 类 号：O484.1[理学—固体物理]