【作者】 黄晓东； 杜群贵； 叶邦彦；

【Author】 HUANG Xiao-dong 1,DU Qun-gui 1,YE Bang-yan 2 (1.College of Traffic & Communications,South China University of Technology,Guangzhou 510640,China; 2.College of Mechanical Engineering,South China University of Technology,Guangzhou 510640,China)

【机构】 华南理工大学交通学院； 华南理工大学机械工程学院；

【摘要】 在设计基准点、沿指定曲线等网格加密生成方式的基础上,根据二维区域几何特征和分析对象物理特性估计,通过选择合适的网格加密生成方式,作用于分析对象上,规划构造有限元自适应网格单元尺寸信息场,进而提出基于De launay剖分的动态节点-单元一体化算法,实现几何特征和物理特性整体自适应的有限元网格自动生成。算例表明此方法可生成高质量、符合分析要求的有限元自适应网格。更多还原

【Abstract】 Various modes were designed for generating refined mesh in the special areas of the domain,including datum-point mode,datum-curve mode,etc.Appropriate modes were selected to act on the special areas according to geometric and physical features of the object to be analyzed.As a result,an information field of element size was built in manner of project.Algorithm based on Delaunay triangulation was developed for 2D finite element adaptive mesh generation,in which element size is changed dynamically.The method was applied successfully to 2D finite element adaptive mesh generation,taking geometric and physical features of the object into consideration as a whole.更多还原