| 三维回转体入水砰击载荷预报 |
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| 引用本文： | 王珂,陈刚,袁洪涛. 三维回转体入水砰击载荷预报[J]. 船舶工程, 2012, 34(1): 12-15 |
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| 作者姓名： | 王珂 陈刚 袁洪涛 |
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| 作者单位： | 上海交通大学船舶海洋与建筑工程学院,上海200030;江苏科技大学船舶与海洋工程学院,江苏镇江212003;上海外高桥造船有限公司海洋工程部,上海,200137 |
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| 摘 要： | 采用数值仿真的方法研究了三维刚性回转体的入水问题,分析了不同回转角度的回转体的砰击压力峰值的变化规律,并研究了以一定初速度入水时,结构质量对砰击压力的影响。计算结果表明,恒速下降时,砰击压力峰值随角度的增加而下降;初速下降时,随着结构质量增加,砰击压力峰值先急剧增加,然后区域平稳。最后提出了不同回转角度、不同质量系数的回转体在初速下降与恒速下降时砰击压力峰值的预报公式。
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| 关 键 词： | 三维回转体 回转角度 砰击压力 结构质量 |
| 收稿时间： | 2011-05-05 |
| 修稿时间： | 2011-08-26 |
Prediction of the slamming pressure on a 3-D axisymmetric structure |
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| WANG Ke , CHEN Gang , YUAN Hong-tao. Prediction of the slamming pressure on a 3-D axisymmetric structure[J]. Ship Engineering, 2012, 34(1): 12-15 |
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| Authors: | WANG Ke CHEN Gang YUAN Hong-tao |
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| Affiliation: | 1.School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200030,China;2.School of Naval Architecture and Ocean Eng.,Jiangsu University of Science and Technology,Jiangsu Zhenjiang 212003,China;3.Offshore Department of Shanghai Waigaoqiao Shipyard Co.Ltd.,Shanghai 200137,China) |
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| Abstract: | Based on t he method of numerical simulation,the water entry of 3-D axisymmetric body was studied.The pressure peak value of the 3-D axisymmetric body with different angle was calculated.The effect of the mass on pressure peak value was studied under initial velocity.The results show that the slamming pressure peak value decreased with the increased values of angle.Under initial velocity the pressure peak value sharply increased firstly and was steady at last.A formula was provided to predict the slamming pressure peak value of axisymmetric body with different angle and mass coefficient under initial velocity and constant velocity. |
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| Keywords: | 3-D axisymmetric body different angle slamming pressure mass coefficient |
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