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首页> 外文期刊>International Journal of Computational Methods and Experimental Measurements >ULTIMATE CAPACITY OF PAD EYES USED FOR LIFTING OPERATIONS: EXPERIMENTAL AND NUMERICAL SIMULATIONS
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ULTIMATE CAPACITY OF PAD EYES USED FOR LIFTING OPERATIONS: EXPERIMENTAL AND NUMERICAL SIMULATIONS

机译：用于提升操作的垫眼的最终能力：实验和数值模拟

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摘要

Load capacities of pad eyes used in offshore lifting operations are generally determined based on the guidelines given in lifting standards. In 2012, NORSOK issued a new standard, R-002 'Lifting equipment', to ensure that adequate safety requirements are complied with in connection with lifting operations on the Norwegian continental shelf. To ensure the accuracy of the followed design procedure, this paper presents a comparison of theoretical load capacities of 3.25-ton pad eyes with experimentally and numerically predicted load capacities. Several laboratory tests have been performed to conduct experimental analyses of the load capacities of pad eyes. These tests have included different pinhole sizes in the pad eyes, different strain directions of pad eye pinholes and different loads to which the pad eyes were subjected. Finite element (FE) simulation was performed for two different cases: with base plate and without base plates. The obtained numerical results show that the addition of the plate to the pad eyes increased the capacity of the pad eyes. It also shows that load capacity of the pad eyes gradually decreased with the increase in pinhole size. This shows the importance of following the standard's requirements. The comparison of results shows that some of the load capacities provided by the FE analysis closer to the experimental and the theoretical results, while a few others were quite far from them. These differences have been comprehensively discussed in the latter part of the paper.
机译：在海上提升操作中使用的焊盘眼的负载容量通常根据提升标准中给出的指导来确定。 2012年，Norsok发布了一个新的标准R-002'提升设备'，以确保与挪威大陆架上的提升业务有关，确保充分的安全要求。为确保遵循遵循的设计程序的准确性，本文提出了通过实验和数值预测的负载能力进行3.25吨垫眼睛的理论负载能力的比较。已经进行了几种实验室测试以进行垫眼的负载能力的实验分析。这些测试在焊盘眼中包括不同的针孔尺寸，垫眼针孔的不同应变方向和垫眼睛的不同负载。有限元（FE）模拟对于两种不同的情况进行：底板和没有底板。所获得的数值结果表明，将板添加到垫眼上增加了垫眼的容量。它还表明，垫眼的负载能力随着针孔尺寸的增加而逐渐降低。这表明以下标准要求的重要性。结果的比较表明，FE分析提供的一些负载能力更接近实验和理论结果，而其他一些其他结果远离它们。这些差异已在本文的后半部分讨论。

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