流-固界面冲击波入射压力的测试及数值模拟

倪小军; 马宏昊; 沈兆武; 蒋耀港; 李磊

doi:10.11858/gywlxb.2013.04.010

流-固界面冲击波入射压力的测试及数值模拟

doi: 10.11858/gywlxb.2013.04.010

中国科学技术大学近代力学系，安徽合肥 230027

详细信息

通讯作者:
倪小军 E-mail:nixj@mail.ustc.edu.cn

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出版历程
- 收稿日期: 2011-11-07
- 修回日期: 2011-12-27
- 发布日期: 2013-08-15

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

Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, China

摘要

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/LS-DYNA，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。
- 双层壳体 /
- 数值模拟 /
- 水下爆炸 /
- 流-固界面 /
- 压力
Abstract: 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 piezoelectric 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 interface can be gained, which is important to evaluate the antiknock performance of ships.
- double shell /
- numerical simulation /
- underwater explosion /
- fluid-solid interface /
- pressure

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参考文献(25)

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