中国舰船研究2018，Vol.13Issue(3)：66-71,6.DOI:10.19693/j.issn.1673-3185.01033
水下爆炸气泡对舰船冲击环境的影响
Effects of underwater explosion bubble on shock environment of warship
摘要
Abstract
[Objectives] In order to standardize the load system of a hull's shock environment and study the effects of bubble pulsation pressure on a hull's shock environment,[Methods] acoustic-structure coupling methods are used to simulate a hull subjected to a non-contact underwater explosion. Comparing the simulation data with the experimental data in the literature,the method is shown to be effective. On this basis,the shock environment under bubble pulsation pressure is studied.[Results] The results show that bubble pulsation pressure has an amplification effect on the low frequency response of a ship,and the influence of the vertical shock spectrum is greater than in the other two directions. The upper decks are still affected more strongly by bubble pulsation,which verifies the decaying rule of the low frequency response of decks. To obtain more accurate data,a 1.5 times bubble pulsation cycle each time is recommended for experiments involving underwater explosion or the prediction of shock environments,which verifies the accuracy of the navy standard.[Conclusions] The results of this paper can be helpful for standardizing the selection of parameters in the process of shock environments, and provide a reference for shock environment forecast research.关键词
水下爆炸/冲击响应/气泡脉动/低频载荷/冲击环境/计算时间Key words
underwater explosion/shock response/bubble pulsation/low frequency load/shock environment/computational time分类
交通工程引用本文复制引用
曾令玉,蔡尚,王诗平..水下爆炸气泡对舰船冲击环境的影响[J].中国舰船研究,2018,13(3):66-71,6.基金项目
国家自然科学基金资助项目(11672082) （11672082）
