船体平板强度在船舶结构极限强度分析中起到十分重要的作用。
Strength of ship plates plays a significant role for the ultimate strength analysis of ship structures.
对两种不同对接焊缝布置下的船体结构进行疲劳强度和极限承载能力分析。
The fatigue and ultimate strength analysis of hull structure with two different butt-welding lines distribution was researched in this paper.
计算结果表明，非线性波浪载荷对船体结构疲劳损伤分析具有重要影响。
Calculation results show that nonlinear factors are important for fatigue strength analysis of ship structures.
分析一种船体腐蚀影响下随时间变化的船体结构可靠性计算方法。
A methodology to assess the time-variant reliability of the primary ship structure with hull girder degradation of corrosion is analyzed.
本文第一部分为船体结构的有限元比较分析。
The first part of the dissertation is the finite element comparing of hull structure.
提出一种基于有限元结构动力分析的船体板架固有频率实用修改方法，并进行了软件设计。
Authors suggest a practical method based on dynamic analysis of finite element for modifying natural frequencies of hull grillage beam, and its software is completed.
本文工作的主要目的是为船体部分舱段或全船结构有限元分析以及船体强度估算提供一种实用、合理的外载荷计算方法。
The aim of this thesis is to provide a practical and efficient method, both to structural estimation and to FEM analysis of partial ship structure or whole ship structure.
船体是一个由加筋板格组成的箱形结构，加筋板格的强度计算对于船体结构的极限强度分析极为重要。
A ship's hull is a box girder structure composed of stiffened panels and therefore, strength of stiffened panels plays a significant role for the ultimate strength analysis of ship structures.
分析潜艇耐压船体过渡段结构型式，提出了双圆弧式过渡段，并对其结构强度进行计算研究。
Fourthly, by analyzing the transition structure models of cylindrical hull, the double arcs transition model is put forward, and the calculation results indicate that the new transition model is well.
本文简要地分析了基于风险的检测及维护的基本概念及基于风险的船体结构检测及维护研究的重要意义。
The basic concepts and the importance of risk based inspection and maintenance planning for ship structures was analyzed.
二是使用适当的可靠性分析方法计算结构的失效概率和可靠性指标等，作为船体结构总纵强度的安全衡量指标。
The second one is to calculate structure invalidation probability and reliability index to evaluate overall longitudinal strength of hull.
对一条实船的分析说明，腐蚀和疲劳损伤虽然短时间内的破坏并不显著，但积累到一定程度，对船体结构的影响相当大。
The tank case study shows that in short time period fatigue and corrosion damages could be neglected, but the damages could affect ship strength obviously when they accumulate to some degree.
在进行船舶结构设计时，一般都需要对船体结构进行有限元分析。
During the design of ship structure, hull structure generally requires the finite element analysis.
并通过建立各种计算模型，对七万吨自卸船进行了船体总振动、舱室局部结构振动、机舱底部板架振动和上层建筑振动的计算分析。
By the different calculation models, the hull general vibration, the cabin local vibration, the grillage vibration in the engine room as well as the superstructure...
并通过建立各种计算模型，对七万吨自卸船进行了船体总振动、舱室局部结构振动、机舱底部板架振动和上层建筑振动的计算分析。
By the different calculation models, the hull general vibration, the cabin local vibration, the grillage vibration in the engine room as well as the superstructure...
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