对刚性船舶首部结构砰击过程进行仿真研究,分析砰击过程中的液面变化,以及船舶首部结构砰击压力与入水速度、结构曲率的关系。研究弹塑性首部结构入水砰击问题。针对弹塑性首部结构入水砰击过程中各个构件上的应力、变形、吸能等参数进行动态响应分析,对优化船舶首部结构形式和保证结构安全性具有十分重要的研究意义。
Based on the method of numerical simulation, the slamming process of rigid ship's bow structure is studied. The change of liquid level and the effects of velocity and curvature on the slamming pressure are studied. The dynamic response such as stress, deformation, and energy absorption of elastic bow structure is studied, and it has very important significance to optimize the ship's bow structure and verify the safety.
2017,39(1): 21-25 收稿日期:2016-06-01
DOI:10.3404/j.issn.1672-7619.2017.01.005
分类号:U661.7
作者简介:谢仁杰(1993-),男,硕士研究生,研究方向为船舶与海洋结构物设计制造。
参考文献:
[1] 张艳萍. 海洋工程结构单元入水砰击分析与仿真模拟[D]. 武汉:华中科技大学, 2007. ZHANG Yan-ping. The analysis and simulation of water entry impact of the structure elements in ocean engineering[D]. Wuhan:Huazhong University of Science and Technology, 2007.
[2] 张健, 尤恽, 王珂, 等. 基于气垫效应的二维楔形体入水砰击载荷预报方法研究[J]. 舰船科学技术, 2016, 38(2):7-12. ZHANG Jian, YOU Yun, WANG Ke, et al. Prediction of the slamming pressure on a 2D wedge-shaped section based on the air cushion[J]. Ship Science and Technology, 2016, 38(2):7-12.
[3] 王珂, 王志东, 米旭峰. LNG船三维首部结构入水砰击载荷数值研究[J]. 江苏科技大学学报(自然科学版), 2012, 26(3); 218-221. WANG Ke, WANG Zhi-dong, MI Xu-feng. Simulation of the slamming pressure of 3D bow construction for LNG carriers[J]. Journal of Jinagsu University of Science and Technology, 2012, 26(3), 218-221.
[4] 陈衡, 孙龙泉. 弹性结构入水砰击载荷特性三维数值模拟研究[J]. 振动与冲击, 2014, 33(19):28-34. CHEN Heng, SUN Long-quan. 3D numerical simulation of slamming load character for water entry of an elastic structure[J]. Journal of Vibration and Shock, 2014, 33(19):28-34.
[5] 黄震球, 张文海. 减小平底体砰击的试验研究[J]. 华中工学院学报, 1986, 14(5):725-730. HUANG Zhen-qiu, ZHANG Wen-hai. Experimental investigation on the reduction of flat-bottom body slamming[J]. Journal of Huazhong University of Science and Technology, 1986, 14(5):725-730.
[6] CHUANG Sheng-lun. Experiments on slamming of wedge-shaped bodies[J]. Journal of Ship Research, 1967, 11(3):190-198.