基于过渡边的细化算法及其在舱口角隅处的应用

REFINING MESH ALGORITHM BASED ON TRANSITION EDGE AND ITS APPLICATION IN SHIP HATCH CORNER

为了获得更精确的分析结果,在集装箱船舱口角隅应力集中的区域,采用添加过渡单元的方法对原有的粗网格进行细化,然后对局部模型再次进行有限元分析。以此提出一种自动的有限元精细划分的算法。介绍构造过渡单元的方法,并根据计算出的迭代次数,得到细网格后进行分析。最后的结果表明,细化网格后生成的新单元与母单元属性保持一致,对于应力变化剧烈的区域,分析结果好于整体分析的结果。

In order to obtain more accurate analysis results, transition elements are added to the stress concentrated region in hatch comer of eontainership, the original spares mesh is refined and the local model with partial finite elements mesh （FEM） is re-analyzed. An automatic FEM refining method is presented in this way, a method of creating transition elements is introduced, and then the refine mesh is analyzed according to the times of iterative educed from computation. Results show that the attributes of the created new elements in refined mesh keep unchanged from its parent elements, and the analysis result from the region with larger stress variation is better than the one obtained from global analysis.