| 改进线性兴波阻力帐篷函数法及实船型线优化 |
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| 引用本文： | 崔焰,卢晓平,王中,崔金林. 改进线性兴波阻力帐篷函数法及实船型线优化[J]. 华中科技大学学报(自然科学版), 2011, 0(4): 101-105 |
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| 作者姓名： | 崔焰 卢晓平 王中 崔金林 |
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| 作者单位： | 海军工程大学船舶与动力学院; |
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| 摘 要： | 针对线性兴波阻力帐篷函数法阻力计算及相应的船型优化方法不能反映实际船体对称面形状这一局限,提出一种定义在实际船体对称面上的船体曲面近似函数,将该船体曲面近似函数代入线性兴波阻力表达式,用该表达式与原帐篷函数法计算同一船型的兴波阻力系数,对比结果表明在多数速度区间内比后者更加接近试验结果.由此表达式建立以船体型值为变量的最小兴波阻力二次规划数学模型,此模型适用于任意给定的由曲线、折线围成的非矩形船体对称面区域,尤其适用于舰船前体及其球鼻首的优化.基于二次规划优化模型对仿DDG51船型进行一系列型线优化设计,在理论上获得了20%以上的兴波阻力减阻效果.
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| 关 键 词： | 船舶阻力 兴波阻力 船型优化 数学规划化 二次规划 帐篷函数 |
Improved tent function method of linear wave resistance and practical ship form optimization |
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| Cui Yan Lu Xiaoping Wang Zhong Cui Jinlin. Improved tent function method of linear wave resistance and practical ship form optimization[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 2011, 0(4): 101-105 |
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| Authors: | Cui Yan Lu Xiaoping Wang Zhong Cui Jinlin |
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| Affiliation: | Cui Yan Lu Xiaoping Wang Zhong Cui Jinlin(College of Ship and Power,Naval University of Engineering,Wuhan 430033,China) |
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| Abstract: | Tent function method of linear wave resistance theory was devised for rectangular centerplane area,while practical centerplane areas are almost all unrectangular.A new hull approximation function applied to such centerplane areas was derived.Then the linear wave resistance formula was introduced.The wave resistance was given in a quadratic form in terms of the hull offsets so that optimization method can be used to seek hull forms with minimum wave resistance.The obtained optimization model was especially a... |
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| Keywords: | ship resistance wave resistance ship form optimization mathematical programming quadratic programming tent function |
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