针对船体在水下爆炸载荷作用下产生的冲击动弯矩问题进行研究。基于船体梁模型采用泰勒平板流固耦合理论对船体冲击动弯矩进行工程计算分析，并与试验数据对比分析进行有效性验证，适用于水下爆炸船体冲击动弯矩的工程化快速预报。采用该方法预报了不同船长和排水量的典型船型的冲击动弯矩，探究冲击动弯矩随舰船标准排水量变化的规律；根据上述多个船型动弯矩的大量计算结果，总结出冲击动弯矩经验计算公式，方便于工程设计应用。
Shock vibration bending moment of ships induced by underwater explosion is researched in this paper. Based on the ship hull girder with variable cross section and the formula of Taylor tablet theory shock vibration bending moment is calculated and analyzed, which is verified with test date from ship shock trial. The calculation method is suitable for engineering forecast of the shock vibration bending moment. Then the shock vibration bending moment of various kinds of ships with different ship length and displacement is predicted, as well as analyzed for law of the moment with ship displacement. The shock vibration bending moment calculated above is summed up, and the empirical formula of shock vibration bending moment is get by data processing and date fitting, which is convenient for engineering design.
2019,41(1): 20-25 收稿日期：2017-11-17
DOI：10.3404/j.issn.1672-7649.2019.01.004
分类号：U661.4
作者简介：郭建军(1990-),男,助理工程师,研究方向为海洋核动力平台结构设计
参考文献：
[1] 张绮蓉, 马锦华. 水下非接触爆炸对舰船总体强度与局部强度影响的分析028 g实艇水下爆炸试验资料汇编(上册)[M]. 北京:第六机械工业部船舶系统工程部, 1982:70-89. ZHANG Qi-rong, MA Jin-hua. Analysis of longitudinal strength and local strength of ship underwater un-contact explosion 028g boat test date[M]. Beijing:Ship System Engineering of Six Machine Industry, 1982:70-89.
[2] 李玉杰, 张效慈, 吴有生, 等. 水下爆炸气泡激起的船体鞭状运动[J]. 中国造船, 2001, 42(3):1-7 LI Yu-jie, ZHANG Xiao-ci, WU You-sheng, et al. Whipping response of ship hull induced by underwater explosion bubble[J]. Shipbuilding of China, 2001, 42(3):1-7
[3] 朱锡, 方斌. 舰船静置爆炸气泡时总纵强度计算方法研究[J]. 海军工程大学学报, 2007, 19(6):6-11 ZHU Xi, FANG Bin. Study on longitudinal strength calculation method of hull standing above an explosion bubble[J]. Journal of Naval University Engineering, 2007, 19(6):6-11
[4] 李海涛, 朱锡, 张振华. 水下爆炸球面冲击波作用下船体梁的刚塑性动响应特性[J]. 工程力学, 2010, 27(10):202-207 LI Hai-tao, ZHU Xi, ZHANG Zhen-hua. Dynamic rigid-plastic response of ship-like beam subjected to underwater spherical shock waves[J]. Engineering Mechanics, 2010, 27(10):202-207
[5] 汪玉, 华宏星. 舰船现代冲击理论及应用[M]. 北京:科学出版社, 2005:220-223.
[6] 姚熊亮. 舰船振动与噪声[M]. 北京:国防工业出版社, 2010:115-121.
[7] COLE R H. Underwater explosion[M]. Princeton:Princeton University Press, 1948:270-352.
[8] ZHANG N, ZONG Z. The effect of rigid-body motions on the whipping response of a ship hull subjected to an underwater bubble[J]. Journal of Fluids and Structures, 2011, 27:1326-1336
[9] 金辉, 周学滨, 周华, 等. 水下爆炸中自由场压力和船体壁压的测量与分析[J]. 海军工程大学学报, 2009, 21(5):82-87 JIN Hui, ZHOU Xue-bin, ZHOU Hua, et al. Measurement and analysis of free-field pressure and ship hull pressure underwater explosion[J]. Journal of Naval University Engineering, 2009, 21(5):82-87
[10] 顾文彬, 苏青笑, 刘建青, 等. 水下平面爆炸冲击波作用卜空化区域形成及其特征[J]. 爆破, 2004, 21(4):8-11 GU Wen-bin, SU Qing-xiao, LIU Jian-qiang, et al. Formation process of cavitation region affected by underwater plane blast shock wave and its characteristics[J]. Blasting, 2004, 21(4):8-11
[11] 刘云龙, 张阿漫, 葛亮, 等. 圆柱壳结构水下爆炸所致鞭状运动特性研究[J]. 振动与冲击, 2013, 32(22):106-112 LIU Yun-long, ZHANG A-man, GE Liang, et al. Whipping response of a cylindrical shell structure subjected to underwater explosion[J]. Vibration and Shock, 2013, 32(22):106-112
[12] SCHNEIDER N A, SHIN Y S. Ship shock trial modeling and simulation for USS Winston S. Churchill (DDG81). Tech Report NPS-ME-03-004, Naval Postgraduate School, December 2003.
