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Analysis on the hull girder ultimate strength of a bulk carrier using simplified method based on an incremental-iterative approach

机译:基于增量迭代法的简化方法分析散货船船体梁极限强度

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摘要

The hull girder ultimate strength of a typical bulk carrier is analyzed using a simplified method based on an incremental-iterative approach. First, vertical bending moment is examined by seven different methods. The moment versus curvature curves and the values of the ultimate longitudinal moments at collapse states are determined for both hogging and sagging cases. Second, the ultimate strength under coupled vertical and horizontal bending moment is accounted. An interaction curve is obtained, which corresponds to the results of series of calculation for the ship hull subject to bending conditions with different angles of curvature. It is found that the interaction curve is asymmetrical because the hull cross section is not symmetrical with respect to the horizontal axis and the structural response of the elements under compression is different from that under tension due to nonlinearity caused by buckling. The angles of the resultant bending moment vector and that of the curvature vector are different in investigated cases. The interaction design equations proposed by other researches are also addressed to discuss the results presented by this study.
机译:使用基于增量迭代法的简化方法分析典型散货船的船体梁极限强度。首先,通过七个不同的方法检查垂直弯矩。对于倒塌和下垂情况,都确定了弯矩与曲率曲线以及在塌陷状态下的最终纵向弯矩的值。其次,考虑了垂直和水平弯矩耦合作用下的极限强度。获得了相互作用曲线,该相互作用曲线对应于经受具有不同曲率角的弯曲条件的船体的一系列计算的结果。发现相互作用曲线是不对称的,因为船体横截面相对于水平轴不对称,并且由于屈曲引起的非线性,受压元件的结构响应与受拉元件的结构响应不同。在研究的情况下,合成弯矩矢量和曲率矢量的角度是不同的。还讨论了其他研究提出的交互设计方程,以讨论本研究提出的结果。

著录项

  • 作者

    Ozguc, Ozgur; Barltrop, Nigel;

  • 作者单位
  • 年度 2008
  • 总页数
  • 原文格式 PDF
  • 正文语种 {"code":"en","name":"English","id":9}
  • 中图分类

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