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STRUCTURAL ANALYSIS FORA PANAMAX BULK CARRIER

机译:结构分析面向巴拉姆散装载体

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摘要

This paper is devoted to the development of a structural analysis for a bulk carrier vessel. According to the CSR requirements for bulk carriers, an assessment of the hull structure using FEA (Finite Element Analysis) on a model extended over 3 cargo holds is presented. This method is used in order to assess the structural integrity of the cargo holds under the considered loads. The selected vessel is a PANAMAX bulk carrier with double hull and longitudinal uniform structure. There are three main priorities for the FE-analysis: one is to perform a fine mesh necessary to capture the stressed induced by the considered loads. The second priority is to apply the right boundary conditions in order to approach the hull girder bending and stress distribution on the cargo holds. The stress distribution is induced by the cargo weight, the hydrostatic pressure and the external water considered as dynamic pressure. The dynamic pressure was computed using an in-house code, neglecting the inertia forces induced by the ship motions and the horizontal accelerations. Also shear forces and bending moments were obtained for head angles of 0, 45 and 180 degrees.
机译:本文致力于开发散装载体船舶的结构分析。根据批量载体的CSR要求,提出了使用FEA(有限元分析)在模型上进行船体结构的评估,延长了3个货物持有。使用该方法以评估在所考虑的载荷下持有货物的结构完整性。所选容器是具有双壳和纵向均匀结构的巴拿马散装载体。 FE分析有三个主要优先事项:一个是执行捕获所考虑的负载引起的压力所需的精细网格。第二优先级是应用正确的边界条件,以便在货物上接近船体梁弯曲和应力分布。应力分布由货物重量,静水压力和被认为是动态压力的外部水引起的。使用内部代码计算动态压力,忽略船舶运动引起的惯性力和水平加速度。还获得剪切力和弯曲力矩,用于0,45和180度的头角。

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