采用非线性有限元法建立船舶与冰层的三维有限元模型,对船-冰碰撞进行了数值模拟,研究了船舶在不同速度下与不同厚度冰层碰撞的动态结构响应,分析了碰撞冰力的大小、船艏结构的变形损伤和能量变化等特性,得到了船舶初速度、冰层厚度等因素对船-冰碰撞载荷的影响,对分析船舶与冰体碰撞的结构性能具有一定的参考价值。
Abstract
By using the nonlinear finite element method to establish the 3D finite element models of ship and level ice, a numerical simulation of collision between ship and level ice is carried out. The ship’s dynamic structure response during collision with level ice of different thicknesses at different speeds is studied, and the magnitude of ice force, deformation of bow structure, changes of ship kinetic energy and deformation energy are analyzed. The influences of the initial ship speed and level ice thickness on the impact load of ship-level ice collision are illustrated. The results have a certain reference value for analyzing the ship structure performance during collision with level ice.
关键词
船-冰碰撞 /
结构响应 /
非线性有限元法 /
数值仿真
{{custom_keyword}} /
Key words
collision between ship and level ice /
structure response /
nonlinear FEM /
numerical simulation
{{custom_keyword}} /
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] Wang B, Yu H C, Basu R. Ship and Ice Collision Modeling and Strength Evaluation of LNG Ship Structure[C]// OMAE2008, 27th International Conference on Offshore Mechanics and Arctic Engineering, Estoril, Portugal, 2008, Vol.3: 911-918.
[2] Lee S G, Lee J S, Baek Y H, et al. Structural Safety Assessment in Membrane-Type CCS in LNGC under Iceberg Collisions[C]//ICSOT2009, International Conference on Ship and Offshore Technology, Busan, Korea, 2009, 69-81.
[3] Liu Z. Analytical and Numerical Analysis of Iceberg Collisions with Ship Structures[D]. Trondheim: Norwegian University of Science and Technology, 2011.
[4] Wang J, Derradji-Aouat A. Numerical Prediction for Resistance of Canadian Icebreaker CCGS Terry Fox in Level Ice[C]//ICSOT2009, International Conference on Ship and Offshore Technology, Busan, Korea, 2009, 9-15.
[5] Kim M C, Lee S K, Lee W J, et al. Numerical and Experimental Investigation of the Resistance Performance of an Icebreaking Cargo Vessel in Pack Ice Conditions[J]. International Journal of Naval Architecture and Ocean Engineering, 2013, 5(1): 116-131.
[6] 杨 亮, 马 骏. 冰介质下的船舶与海洋平台碰撞的数值仿真分析[J]. 中国海洋平台, 2008 (2): 29-33.
Yang L, Ma J. Numerical Simulation Analysis for the Collision Between Offshore Platform under the Sea Ice Medium[J]. China Offshore Platform, 2008 (2): 29-33.
[7] 张 健, 万正权, 陈 聪. 船-冰碰撞载荷下球鼻艏结构动态响应研究[J]. 船舶力学, 2014, 18(1): 106-114.
Zhang J, Wan Z Q, Chen Cong. Research on Structure Dynamic Response of Bulbous Bow in Ship-ice Collision Load[J]. Journal of Ship Mechanics, 2014, 18(1): 106-114.
[8] 张 健, 张淼溶, 万正权, 等. 冰材料模型在船-冰碰撞结构响应数值仿真中的应用研究[J]. 中国造船, 2013 (4): 100-108.
Zhang J, Zhang M R, Wan Z Q, et al. Research on Ice Material Model Applied in Numerical Simulation of Ship Structure Response under Iceberg Collision[J]. Shipbuilding of China, 2013 (4): 100-108.
[9] 季顺迎, 岳前进. 工程海冰数值模拟及应用[M]. 北京: 科学出版社, 2011.
Ji S Y, Yue Q J. Simulation and Application of Engineering Sea Ice [M]. Beijing: Science Press, 2011.
[10] 宋卫东, 宁建国. 冰对海洋结构的临界力[J]. 冰川冻土, 2003, 25(3): 351-354.
Wei W D, Ning J G. Critical Load between Sea Ice and Sea Structure[J]. Journal of Glaciology and Geocryology, 2003, 25(3): 351-354.
[11] 白泽金. LS-DYNA3D理论基础与实例分析[M]. 北京: 科学出版社, 2005.
Bai Z J. Theoretical Basis and Example Analysis of LS-DYNA3D[M]. Beijing: Science Press, 2005.
{{custom_fnGroup.title_cn}}
脚注
{{custom_fn.content}}