| 水下爆炸作用下船舶结构与燃气轮机动态响应的数值研究 |
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| 引用本文： | 赵松涛,王南,王鑫,戴光昊,刘云龙. 水下爆炸作用下船舶结构与燃气轮机动态响应的数值研究[J]. 船舶力学, 2021, 25(6): 815-827. DOI: 10.3969/j.issn.1007-7294.2021.06.013 |
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| 作者姓名： | 赵松涛 王南 王鑫 戴光昊 刘云龙 |
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| 作者单位： | 同济大学,上海200092;哈尔滨锅炉涡轮研究所,哈尔滨150078;华中光电技术研究所,武汉430070;哈尔滨锅炉涡轮研究所,哈尔滨150078;哈尔滨工程大学船舶工程学院,哈尔滨150001 |
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| 摘 要： | 本文对水下爆炸作用下舰船结构及燃气轮机结构冲击响应进行了数值研究.首先,基于CEL方法建立了近自由面水下爆炸流固耦合动力学模型.然后结合燃气轮机-船体一体化仿真分析方法,对不同水下爆炸工况下的舰船结构冲击环境,以及燃气轮机冲击损伤特性进行了评估分析,总结了工况参数对燃气轮机冲击响应特征的影响规律,旨在为舰用燃气轮机抗冲击设计提供技术参考.
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| 关 键 词： | 水下爆炸 燃气轮机 动态响应 CEL方法 抗冲击 |
Numerical Investigation of Dynamic Responses of Ship Structure and Gas Turbine Subjected to Underwater Explosion |
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| ZHAO Song-tao,WANG Nan,WANG Xin,DAI Guang-hao,LIU Yun-long. Numerical Investigation of Dynamic Responses of Ship Structure and Gas Turbine Subjected to Underwater Explosion[J]. Journal of Ship Mechanics, 2021, 25(6): 815-827. DOI: 10.3969/j.issn.1007-7294.2021.06.013 |
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| Authors: | ZHAO Song-tao WANG Nan WANG Xin DAI Guang-hao LIU Yun-long |
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| Abstract: | Dynamics responses of the ship structure and the gas turbine subjected to underwater explo-sion are investigated numerically in this paper. Firstly, the underwater explosion numerical model near free surface is established based on the Coupled Eulerian-Lagrangian method. Then, both the shock environment of the ship structure and the dynamics responses of the gas turbine subjected to different underwater explosion loads are simulated by incorporating with the hull-equipment integrative meth-od. Finally, the influences of the underwater explosion condition parameters on the damage response characteristics are analyzed to offer technical reference for the anti-shock design of the gas turbine . |
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| Keywords: | underwater explosion gas turbine dynamics responses Coupled Eulerian-Lagrangian method anti-shock |
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