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Study on the Leng.h of Cross-Bay Bridge at Tieshan Port

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China Ocean eng.neering 1999年第4期14卷 479-488页

作者：游立新缪荻帆 No. 2 Harbour eng. Investigation Des. Inst. Min. of Commun. of China Wuhan 430071 China

To determine the optimal leng.h of the cross-bay bridge at the Tieshan Port and the impact of the bridge on the hydrological environment, a 2-D numerical model is adopted to calculate the variation of tidal level, tid... 详细信息

关键词： numerical calculation cross-bay bridge leng.h study

Efficient Elliptic Solver for the Mild Slope Equation Using BI-CGSTAB Method

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China Ocean eng.neering 2000年第2期15卷 175-184页

作者：郑永红沈永明邱大洪夏进 State Key Lab. Coast./Offshore eng. Dalian University of Technology Dalian 116023 China Academician of Chinese Acad. of Sci. State Key Lab. Coast./Offshore Eng. Dalian University of Technology Dalian 116023 China Dalian des./Res. inst. Environ. Sci. Dalian 116023 China

The elliptic mild slope equation is used to simulate linear wave propagation over variable sea bed topography with mild slopes. The governing equation is discretized by the finite difference method. Based on the BI-CGSTAB technique, an attractive variant bf BI-Conjugate Gradients (BI-CG) method, the obtained linear algebraic system of equations is solved. Numerical experiments show that the BI-CGSTAB method is efficient for solving the elliptic mild slope equation. The results obtained by the BI-CGSTAB-Based method are much the same as those obtained by other authors with different solution methods, but the convergence rate is much faster than that of other methods.

关键词： mild slope equagtition BI-CGSTAB method elliptic solver

CONSTANT AMPLITUDE FATIGUE STReng.H AND P-S_a-S_m-N CAMBER FAMILY

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Chinese Journal of Aeronautics 1996年第1期9卷 28-37页

作者： Ni Kan(Department of Naval Architecture and Ocean eng.neering,Shanghai Jiao Tong Universily, Shanghai, China, 200030)Gao Zentong(Department of Flight Vehicle des.gn and Applied Mechanics, Beijing University of Aeronautics and Astronautics,Beijing, China, Dept. of Nav. Arch. and Ocean eng. Shanghai Jiao Tong University Shanghai 200030 China Dept. Flight Vehicle des. Appl. M. Beijing Univ. Aero. and Astronaut. Beijing 100083 China

Functions of the P-Sa-Sm-N camber family in constant amplitude cyclic loading are established by combining the P-S-N curve family and constant life diagrams, which is feasible in eng.neering application. Meanwhile, the preconditions of mechanics and probability-statistics are clearly presented. According to Weibull's assumptions i.e., monotone decreasing and nonintersecting about individual S-N curves, the relation of isostructural measure preserving transformation (IMPT) between the probability spaces of constant amplitude fatigue life and constant amplitude fatigue streng.h is proved based on the measure theory. Therefore, an individual specimen possesses the same percentile value in different probability spaces of fatigue life and fatigue streng.h under constant amplitude loading. The P-Sa -Sm-N cambers of individual, population and sample are also distinguished.

关键词： amplitude camber fatigue life fatigue (materials) streng.h

一种求解带有阻塞限制的混合流水车间的禁忌搜索算法

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上海交通大学学报 2006年第5期40卷 856-859页

作者：陈璐奚立峰蔡建国 Nathalie Bostel Pierre Dejax 上海交通大学机械与动力工程学院 .Dept.of Automatic Control and Industrial eng. IRCCyN-inst.tute de Recherche en Communication et Cybernétique de Nantes FranceI UT de Saint Nazaire de l'universitéde NantesDépartement GLT58 rue Michel Ange44606 Saint Nazaire CedexFrance Dept.of Automatic Control and Industrial eng. Ecole des Mines de NantesLa ChantrerieF-44070 Nantes Cedex 03France I UT de Saint Nazaire de l’universitéde Nantes Département GLT58 rue Michel Ange44606 Saint Nazaire CedexFrance

针对带有阻塞限制的混合流水车间调度问题,提出一种禁忌搜索算法和优先级规则相结合的方法.开发了启发式调度算法求出问题初始解,应用禁忌搜索算法对工件在第一级的排序进行优化,采用优先级规则进行其他级工件的排序.实验结果表明,该方... 详细信息

针对带有阻塞限制的混合流水车间调度问题,提出一种禁忌搜索算法和优先级规则相结合的方法.开发了启发式调度算法求出问题初始解,应用禁忌搜索算法对工件在第一级的排序进行优化,采用优先级规则进行其他级工件的排序.实验结果表明,该方法大大缩减了搜索空间,能够较好地解决此类调度问题.

关键词：混合流水车间禁忌搜索启发式算法优先级规则