基于非重叠Mortar方法的比例边界等几何分析OA北大核心CSCDCSTPCD
Scaled boundary isogeometric analysis based on non-overlapping Mortar method
在比例边界等几何分析的建模剖分过程中会出现交界面网格非匹配现象,给计算分析带来困难.为了能够处理此类问题,提出了基于非重叠Mortar方法的比例边界等几何分析.该方法能在将全域分解为若干子域时,针对每个子域分别建模和剖分网格,交界面网格无需逐点匹配;采用交叉点修正的非均匀有理B-样条基函数构造Lagrange乘子空间,子域交界面连续条件可通过Mortar条件满足;并根据交界面连续条件进行自由度凝聚,得到对称正定的系数矩阵,可直接求解.分片试验、U…查看全部>>
In the scaled boundary isogeometric analysis,the discretization will lead to non-matching meshes across the interface.The non-matching meshes bring difficulties to the analysis and calculation.In order to handle these problems,the scaled boundary isogeometric analysis based on non-overlapping Mortar method was proposed.The full domain was decomposed into several sub-domains by this method.Sub-domains were discretized independently,so the meshes across the in…查看全部>>
薛冰寒;林皋;胡志强
大连理工大学 海岸与近海工程国家重点实验室,大连 116024大连理工大学 建设工程学部 水利工程学院,工程抗震研究所,大连 116024大连理工大学 海岸与近海工程国家重点实验室,大连 116024
数理科学
比例边界等几何分析Mortar方法非均匀有理B样条非匹配网格
scaled boundary isogeometric analysisMortar methodnon-uniform rational B-splinenon-matching mesh
《计算力学学报》 2017 (4)
447-452,6
国家自然科学基金重点项目(51138001)资助项目.
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