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圆柱壳在水下爆炸作用下鞭状响应试验研究

Keywords: 水下爆炸, 鞭状运动, 试验研究, 高速摄影

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Abstract:

针对药包在模型中部位置情况,研究了不同潜深,不同爆距和不同方位角下圆柱壳模型鞭状响应的发展过程和变化规律。利用大型室内爆炸筒,将高速摄影技术和应变测量相结合定量捕捉爆炸气泡和模型的相互作用过程,发现模型的响应可分解为主要受气泡滞后流支配的刚体运动和以湿模态一阶垂向振动为主的弹性振动两部分。当气泡脉动频率与模型振动频率接近时,气泡脉动压力和滞后流与模型冲击振动产生的正叠加效应,使模型产生鞭状响应,最大应变响应值为冲击波作用响应峰值的2-4倍。且受爆距,方位角和潜深影响。

References

[1]  STETTLER J W. Damping mechanisms and their effects on the whipping response of a submerged submarine subject to an underwater explosion[R]. AD-A298743, 1983.
[2]  HICKS A N. Explosion induced hull whipping: Advances in Marine Structures[M]. Smith S C, Clark D J. Elsevier Applied Science Publishers, 1986:390-410.
[3]  VERNON T A. Whipping response of ship hulls from underwater explosion bubble loading[R]. AD-A178096, 1986.
[4]  斋藤年正,等. 气泡诱导的船体whipping[J]. 关西造船协会志, 1995, 223(1): 105-112.
[5]  ZONG Z. Dynamic plastic response of a submerged free-free beam to an underwater gas bubble[J]. Acta Mechanica, 2003, 161(3-4): 179-194.
[6]  李玉节, 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.
[7]  LI Yujie, ZHANG Xiaoci, WU Yousheng, et al. Whipping response of ship hull induced by underwater explosion bubble[J]. Ship Building of China, 2001,42(3):1-7.
[8]  姚熊亮, 陈建平, 任慧龙. 水下爆炸气泡脉动压力下舰船动态响应分析[J]. 哈尔滨工程大学学报, 2000,21(1): 1-5.
[9]  YAO Xiongliang, CHEN Jianping, REN Huilong. The analysis of dynamic response of ship hull subjected to gas bubble impulsive pressure of underwater explosions.[J]. Journal of Harbin Engineering University,2000,21(1):1-5.
[10]  董海, 刘建湖, 吴有生. 水下爆炸气泡脉动作用下细长加筋圆柱壳的鞭状响应分析[J]. 船舶力学. 2007, 11(2): 250-258.
[11]  DONG Hai, LIU Jianhu, WU Yousheng. Whipping response analysis of slender stiffened cylindrical shell subjected to underwater explosion with bubble pulse[J]. Journal of Ship Mechanics, 2007,11(2):250-258.
[12]  Akihiro Y. Experimental and numerical investigations on whipping motion of a floating structure induced by a close-in underwater explosion[C]// Proceedings of 75th Shock and Vibration Symposium. Virginia Beach, US, 2004:266-273.
[13]  朱锡, 牟金磊, 洪江波,等. 水下爆炸气泡脉动特性的试验研究[J]. 哈尔滨工程大学学报, 2007, 28(4): 365-368.
[14]  ZHU Xi, MU Jinlei, HONG Jiangbo, et al. Experimental study of characters of bubble impulsion induced by underwater explosions[J]. Journal of Harbin Engineering University, 2007,28(4):365-368.
[15]  翁长俭, 张保玉. 船体振动学[M]. 大连: 大连海运学院出版社, 1992:90-96.
[16]  库尔. 水下爆炸[M]. 北京: 国防工业出版社, 1960:166-169.
[17]  李国华, 李玉节, 张效慈. 气泡运动与舰船设备冲击振动关系的试验验证[J]. 船舶力学, 2005, 9(1): 98-105.

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