| 应用复形优化方法的船舶结构可靠性分析 |
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| 引用本文： | 俞铭华,徐昌文.应用复形优化方法的船舶结构可靠性分析[J].中国造船,1997(3):60-65. |
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| 作者姓名： | 俞铭华 徐昌文 |
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| 作者单位： | 华东船舶工业学院(俞铭华，姚金山)，同济大学(徐昌文) |
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| 摘 要： | 本文根据Hasofer－Lind关于结构可靠性指标的定义，提出改进的复形优化方法来计算可靠性指标，可避免复杂非线性极限状态函数的求导问题，亦可处理随机变量相关的问题。其突出的优点是，方法的通用性强，编制程序简单，便于推广应用。计算实例证明了本文方法的有效性。
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| 关 键 词： | 船舶结构 可靠性指标 复形法 |
RELIABILITY ANALYSIS OF SHIP STRUCTURES USING IMPROVED COMPLEX METHOD OF OPTIMIZATION |
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| YU Minghua ,YAO Jinshan.RELIABILITY ANALYSIS OF SHIP STRUCTURES USING IMPROVED COMPLEX METHOD OF OPTIMIZATION[J].Shipbuilding of China,1997(3):60-65. |
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| Authors: | YU Minghua YAO Jinshan |
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| Institution: | YU Minghua ;YAO Jinshan (East China Shipbuilding Institute)XU Changwen(Tongji University) |
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| Abstract: | In this paper, an attempt is made to present the improved complex method of optimization for computing the structural reliability index based on its geometric meaning, in which thd derivation for the nonlinear equation of ultimate state can be avoided and the problem of dependent random variables is readily dealt with. The proposed method has advantages of good generality and simple edition for programming, for which the effectiveness is demonstrated by numerical exaplmes at the end of the paper. |
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| Keywords: | Ship structure Reliability index Complex method |
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