Research on the characterization of vehicle’s pyroshock based on SPH-FEM coupling method
ZHU Dong-jun1,2 CHU Wen-hua3,4 LIANG De-li5 WANG Shi-ping1,6
1,College of Shipbuilding Engineering，Harbin Engineering University，Harbin 150001；
2.College of Marine Sciences，Shanghai Ocean University，Shanghai 201306；
3.Beijing Institute of Nearspace Vehicle's Systems Engineering，Beijing 100076
Abstract：A model for analyzing vehicle’s pyroshock was established base on SPH-FEM coupling method, the coupled SPH-FEM method employs SPH particles in the higher distortion regions for explosion bolt and finite elements for vehicle’s separate structure．The characterization of vehicle’s pyroshock is studied by changing the order of bolt initiation sequence and initiation interval. The numerical results well agree with the experimental results and thus verify the accuracy of the model. Study shows that, the best detonating sequence is to let the top and bottom bolts detonate firstly; Explosion bolts detonate in a certain order and interval, which can effectively alleviate the explosive impact to the separate structure; the best initiation interval is , and the bolts initiation interval should not more than .
收稿日期: 2014-03-25
出版日期: 2015-06-15
引用本文:
朱东俊1，2,初文华3，4梁德利5，王诗平1,6. 基于SPH-FEM耦合算法的飞行器爆炸分离特性研究[J]. 振动与冲击, 2015, 34(11): 68-74.
ZHU Dong-jun1,2 CHU Wen-hua3,4 LIANG De-li5 WANG Shi-ping1,6. Research on the characterization of vehicle’s pyroshock based on SPH-FEM coupling method. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(11): 68-74.
[1] Mulville D R. Pyroshock Test Criteria, NASA Technical Standard[R]. Report NASA-STD-7003, 1999 (Section 3.7), 1999.
[2] Hansen J E, Lord C E, Yang L C, et al. Effect of Pin-to-Case Electrostatic Discharge on Electroexplosive Zdeice Insulation Resistance[J]. Journal of spacecraft and rockets, 2006, 43(5): 1084-1092.
[3] 毛勇建, 李玉龙. 爆炸分离冲击环境的模拟试验技术进展[J]. 导弹与航天运载技术, 2007 (4): 37-44.
Mao Yong-jian Li Yu-long，Advances in Simulation Techniques of Pyroshock Environments[J]. Missiles and Space Vehicles, 2007 (4): 37-44.
[4] 吴艳红, 王晓晖, 马斌捷, 等. 爆炸螺栓盒的爆炸模拟与冲击强度计算[J]. 强度与环境, 2008, 34(6): 10-15.
WU Yan-hong WANG Xiao-hui MA Bin-jie RONG Ke-lin LI Shuang. The simulation of explosion and the calculation of the impact strength of the explosive bolt box[J].Structure & Environment Engineering, 2008, 34(6): 10-15.
[5] 王吉, 王肖钧, 卞梁. 光滑粒子法与有限元的耦合算法及其在冲击动力学中的应用[J]. 爆炸与冲击, 2008, 27(6): 522-528.
WANG Ji, WANG Xiao-jun, BIAN Liang. Linking of smoothed particle hydrodynamics method to standard finite element method and its application in impact dynamics[J]. Explosion and Shock Waves, 2008, 27(6): 522-528.
[6] Mair H U. Review: hydrocodes for structural response to underwater explosions[J]. Shock and Vibration, 1999, 6(2): 81-96.
[7] Benson D J. Computational methods in Lagrangian and Eulerian hydrocodes[J]. Computer methods in Applied mechanics and Engineering, 1992, 99(2): 235-394.
[8] Liu G R, Liu M B. Smoothed particle hydrodynamics: A meshfree particle method, World Scientific Pub. Co. Inc., 01 Dec, 2003.
[9] Johnson G R, Stryk R A, Beissel S R, et al. An Algorithm to Automatically Convert Distorted Finite Elements into Meshless Particle during Dynamics Deformation [J]. Int J Impact Eng, 2002, 27(10): 997-1013.
[10] Attaway S, Heinstein M, Swegle J. Coupling of smoothed particle hydrodynamics with the finite element method [J]. Nucl. Eng. Des., 1994,150(2-3): 199-205.5
[11] 初文华,张阿漫,明付仁,杨文山. SPH-FEM耦合算法在爆炸螺栓解锁分离过程中的应用[J]. 振动与冲击,2012,23:197-202.
CHU Wen-hua，ZHANG A-man，MING Fu-ren，YANG Wen-shan. Application of three-dimensional SPH-FEM coupling method in unlocking process of an explosion bolt[J].Journal of vibration and shock,2012,23:197-202.
[12] 杨桂通. 弹塑性力学引论[M]. 北京: 清华大学出版社. 2004.
[13] 张庆明, 刘彦, 黄风雷, 吕中杰译. 材料的动力学行为[M]. 北京: 国防工业出版社. 2006.10.
[14] 杨文山. 水下接触爆炸舰船毁伤及防护机理[D]. 哈尔滨工程大学博士学位论文, 哈尔滨工程大学, 2011, 10.
[15] DoD U S. Mil-STD-810F: Department of Defense Test Method Standard for Environmental Engineering Considerations and Laboratory Tests[J]. US Department of Defense (DoD)(01.01. 2000).
