流-固界面冲击波入射压力的测试及数值模拟  

Experimental Measurement and Numerical Simulation of Incident Shock Wave Pressure on the Fluid-Solid Interface

作　　者：倪小军[1] 马宏昊[1] 沈兆武[1] 蒋耀港[1] 李磊[1] 

机构地区：[1]中国科学技术大学近代力学系,安徽合肥230027

出　　处：《高压物理学报》2013年第4期528-534,共7页Chinese Journal of High Pressure Physics

基　　金：国家自然科学基金重点项目(51134012);国家自然科学基金(51174183);安徽省高等学校省级自然科学研究重大项目(KJ2010ZD003)

摘　　要：为得到炸药水中爆炸冲击波在中远场内流-固界面上的入射压力时程曲线,在双层壳体底部布置2个PVDF薄膜压电传感器,测量冲击波压力,并应用有限元程序ANSYS/LSDYNA,对实验过程进行数值模拟。研究表明,实验结果与数值模拟结果符合较好;PVDF薄膜压电传感器可用于流-固界面上水下爆炸冲击入射压力的测量;在中远场范围内,得到了流-固界面上冲击波的入射压力时程曲线,对评价舰船的抗爆性能具有重要意义。In order to research the mid-far field pressures of the incident shock wave on the fluid-solid interface,an experiment was designed to measure the shock wave pressure, by means of two PVDF pi- ezoelectric film sensors laid on the bottom of double shell. The experimental process was simulated by the finite element method software ANSYS/LS-DYNA. The simulation results are in good agreement with the experimental data. PVDF sensor can be Used to measure the incident shock wave pressure on the fluid-solid interface. The mid-far field pressures of the incident shock wave on the fluid-solid inter- face can he gained, which is important to evaluate the antiknock performance of ships.

关 键 词：双层壳体 数值模拟 水下爆炸 流-固界面 压力 

分 类 号：O521.3[理学—高压高温物理] O383.1[理学—物理]