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Research on Several Critical Technologies of the Whole-Ship Structural Analysis through FEM

机译：基于有限元的全船结构分析若干关键技术研究

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The trends of building large-scale ships and ships of new-type bring higher demands for hull structural design, which improves the significance of direct calculation method. Therefore, a penetrative research on the direct calculation method of the whole-ship FEA would be essential. In this paper, a 6000-t deck barge is taken as an example to expound the process of direct calculation method of the whole-ship FEA. Efforts are being made especially on several key technologies such as the different simulation methods of cargoes loaded on the deck (virtual beam method, multi-point constraints method and mass point method), the selection of bending moment and torque reference point on the section, etc. Furthermore, some recommendations are put forward, based on which the global structural strength evaluation is achieved. This research will provide certain reference value for the application of relevant critical technologies in the whole-ship structural analysis through FEM.
机译：建造大型船舶和新型船舶的趋势对船体结构设计提出了更高的要求，这提高了直接计算方法的重要性。因此，对全船有限元分析的直接计算方法进行深入研究将是必不可少的。本文以6000吨甲板驳船为例，阐述了全船有限元分析的直接计算方法。特别是在一些关键技术上做出了努力，例如甲板上装载的货物的不同模拟方法（虚拟梁方法，多点约束方法和质点方法），截面上弯矩和扭矩参考点的选择，此外，提出了一些建议，并以此为基础对全球结构强度进行了评估。该研究为相关关键技术在有限元分析中在全船结构分析中的应用提供一定的参考价值。

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