| 舰船舷侧液舱防护设计(英文) |
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| 引用本文： | 张阿漫,明付仁,曹雪雁,杨文山.舰船舷侧液舱防护设计(英文)[J].船舶与海洋工程学报,2011,10(4):437-446. |
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| 作者姓名： | 张阿漫 明付仁 曹雪雁 杨文山 |
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| 作者单位： | Department of Mechanical Engineering, University College London;College of shipbuilding engineering, Harbin Engineering University |
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| 基金项目： | Supported by the Lloyds Register Educational Trust (the LRET);Key Project of National Natural Science Funds(50939002);the National Natural Science Fundation of China (50809018) |
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| 摘 要： | Based on the traditional Smoothed Particle Hydrodynamics (SPH) algorithm, the linked-list search algorithm combined with the variable smoothing length and square support domain was put forward to improve the calculation efficiency and guarantee the calculation accuracy. The physical process of high velocity fragment impact on a broadside liquid cabin was programmed for simulation. The numerical results agreed well with those of the general software ANSYS AUTODYN, which verifies the effectiveness and feasibility of the numerical method. From the perspective of the outer plate thickness of the liquid cabin, the width of the liquid cabin, and incident angle of the fragment, the influence of these parameters on protective mechanisms was analyzed to provide a basis for protective design of a broadside liquid cabin. Results show that the influence of outer plate thickness is not obvious; therefore, the conventional design can be adopted in the design of the outer plate. The width of the liquid cabin has a great influence on the residual velocity of the fragment and the width of the liquid cabin should be designed to be as wide as possible under the premise of meeting other requirements. There is a certain incident angle in which the velocity attenuation of the fragment is most obvious, and the high-pressure zone near the inner plate is asymmetric. The inner plate of liquid cabin should be strengthened according to the hull form, principal dimensions, and vulnerable points.
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| 关 键 词： | liquid cabin high velocity fragment SPH algorithm impact protective design |
| 收稿时间： | 31 January 2007 |
Protective design of a warship broadside liquid cabin |
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| Aman Zhang,Furen Ming,Xueyan Cao,Wenshan Yang.Protective design of a warship broadside liquid cabin[J].Journal of Marine Science and Application,2011,10(4):437-446. |
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| Authors: | Aman Zhang Furen Ming Xueyan Cao Wenshan Yang |
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| Institution: | (1) Department of Genetics, University of Bayreuth, Universitaetsstr. 30, 95447 Bayreuth, Germany;(2) Institute of Molecular Biotechnology GmbH, IMBA, Dr. Bohr-Gasse 3, 1030 Vienna, Austria; |
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| Abstract: | Based on the traditional Smoothed Particle Hydrodynamics (SPH) algorithm, the linked-list search algorithm combined with the
variable smoothing length and square support domain was put forward to improve the calculation efficiency and guarantee the
calculation accuracy. The physical process of high velocity fragment impact on a broadside liquid cabin was programmed for
simulation. The numerical results agreed well with those of the general software ANSYS AUTODYN, which verifies the effectiveness
and feasibility of the numerical method. From the perspective of the outer plate thickness of the liquid cabin, the width
of the liquid cabin, and incident angle of the fragment, the influence of these parameters on protective mechanisms was analyzed
to provide a basis for protective design of a broadside liquid cabin. Results show that the influence of outer plate thickness
is not obvious; therefore, the conventional design can be adopted in the design of the outer plate. The width of the liquid
cabin has a great influence on the residual velocity of the fragment and the width of the liquid cabin should be designed
to be as wide as possible under the premise of meeting other requirements. There is a certain incident angle in which the
velocity attenuation of the fragment is most obvious, and the high-pressure zone near the inner plate is asymmetric. The inner
plate of liquid cabin should be strengthened according to the hull form, principal dimensions, and vulnerable points. |
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