Experimental Measurement and Numerical Simulation of Incident Shock Wave Pressure on the Fluid-Solid Interface
-
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。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.
-
Key words:
- double shell /
- numerical simulation /
- underwater explosion /
- fluid-solid interface /
- pressure
-
Hu G Y, Xia F, Li J. The transient responses of two-layered cylindrical shells attacked by underwater explosive shock waves [J]. Compos Struct, 2010, 92(7): 1551-1560. Yao X L, Guo J, Feng L H, et al. Comparability research on impulsive response of double stiffened cylindrical shells subjected to underwater explosion [J]. Int J Impact Eng, 2009, 36(5): 754-762. Yao X L, Liang D L, Xu W J. The effect of changing structure parameter on impulse response of double cylinder shell structure [J]. Journal of Harbin Engineering University, 2006, 27(4): 477-483. (in Chinese) 姚熊亮, 梁德利, 许维军. 结构参数变化对双层圆柱壳冲击响应的影响 [J]. 哈尔滨工程大学学报, 2006, 27(4): 477-483. Li Y J, Li G H, Zhao B L, et al. Influence of double hull structure on the effects of underwater explosion [J]. Journal of Ship Mechanics, 2006, 10(5): 127-134. (in Chinese) 李玉节, 李国华, 赵本立, 等. 双层壳体对水下爆炸作用的影响研究 [J]. 船舶力学, 2006, 10(5): 127-134. Gustavson P K, Tasker D G, Forbes J W. Underwater shock wave measurements using PVDF transducers [C]//Schmidt S C, Dick R D, Forbes J W, et al. Shock Compression of Condensed Matter: Proceedings of the American Physical Society Topical Conference. Amsterdam: Elsevier, 1992: 905-908. Chi J C, Ma B. Underwater explosion wave by a spherical charge of composition B-3 [J]. Chinese Journal of High Pressure Physics, 1999, 13(3): 199-204. (in Chinese) 池家春, 马冰. TNT/RDX(40/60)炸药球水中爆炸波研究 [J]. 高压物理学报, 1999, 13(3): 199-204. Zhao J B, Tan D W, Zhang Y P, et al. Application of PVDF sensor in underwater explosive shock wave measurement at near-field [J]. Chinese Journal of Explosives Propellants, 2009, 32(3): 1-4. (in Chinese) 赵继波, 谭多望, 张远平, 等. PVDF计在水中爆炸近场压力测试中的应用 [J]. 火炸药学报, 2009, 32(3): 1-4. Zhao J B, Tan D W, Li J L, et al. Axial pressure damping of cylindrical TNT charges in the near underwater-explosion field [J]. Explosion and Shock Waves, 2008, 28(6): 539-543. (in Chinese) 赵继波, 谭多望, 李金河, 等. TNT药柱水中爆炸近场压力轴向衰减规律 [J]. 爆炸与冲击, 2008, 28(6): 539-543. Song P, Xiao C, Liang A D, et al. Conversion relation of shock wave overpressure about underwater explosion and air blast [J]. Chinese Journal of Explosives Propellants, 2008, 31(4): 10-13. (in Chinese) 宋浦, 肖川, 梁安定, 等. 炸药空中与水中爆炸冲击波超压的换算关系 [J]. 火炸药学报, 2008, 31(4): 10-13. Lu F Y, Li X Y, Lin Y L. The Structure and Principle of Warhead [M]. Beijing: Science Press, 2009. (in Chinese) 卢芳云, 李翔宇, 林玉亮. 战斗部结构与原理 [M]. 北京: 科学出版社, 2009. Livermore Software Technology Corporation. LS-DYNA Keyword User's Manual [M]. Livermore, USA: Livermore Software Technology Corporation, 2007. Li Y C, Shi D Y, Zhao Y. Basic Theory and Engineering Practice of ANSYS10. 0/LS-DYNA [M]. Beijing: China Water Power Press, 2006. (in Chinese) 李裕春, 时党勇, 赵远. ANSYS10. 0/LS-DYNA基础理论与工程实践 [M]. 北京: 中国水利水电出版社, 2006. Century Dynamics Inc. AUTODYN User Manual [M]. USA: Century Dynamics Inc, 2001. Dong Y B, Su L X, Chen D N, et al. Numerical simulation on the spallation of a steel cylindrical shell imploded under slipping detonation [J]. Chinese Journal of High Pressure Physics, 1989, 3(1): 1-10. (in Chinese) 董玉斌, 苏林祥, 陈大年, 等. 滑移爆轰作用下内爆柱形钢壳层裂的数值模拟 [J]. 高压物理学报, 1989, 3(1): 1-10. Xiao Q P, Chen W H, Jia X Z, et al. Numerical study of underwater explosion shock wave based on AUTODYN [J]. Ship Science and Technology, 2009, 31(2): 38-43. (in Chinese) 肖秋平, 陈网桦, 贾宪振, 等. 基于AUTODYN的水下爆炸冲击波模拟研究 [J]. 舰船科学技术, 2009, 31(2): 38-43.
点击查看大图
计量
- 文章访问数: 6583
- HTML全文浏览量: 427
- PDF下载量: 496