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STRUCTURAL ANALYSIS FORA PANAMAX BULK CARRIER

机译:巴拿马型散货船的结构分析

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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:本文致力于发展散装货船的结构分析。根据散货船的CSR要求,提出了使用FEA(有限元分析)对扩展到3个货舱的模型进行的船体结构评估。使用此方法来评估在考虑的载荷下货舱的结构完整性。 选择的船只是具有双壳体和纵向均匀结构的PANAMAX散货船。 有限元分析有三个主要优先事项:一个是执行必要的精细网格以捕获由考虑的载荷引起的应力。 第二优先事项是应用正确的边界条件,以接近船体大梁的弯曲和货舱上的应力分布。 应力分布是由货物重量,静水压力和被视为动压的外部水引起的。 动压是使用内部代码计算的,忽略了由船舶运动和水平加速度引起的惯性力。还针对0、45和180度的顶角获得了剪切力和弯矩。

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