| 基于图形学方法的离散元边界接触检测法 |
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| 引用本文： | 贾慧敏.基于图形学方法的离散元边界接触检测法[J].科学技术与工程,2009,9(3). |
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| 作者姓名： | 贾慧敏 |
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| 作者单位： | 大连交通大学软件学院,大连,116000 |
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| 摘 要： | 在采用离散元法分析机械部件的接触作用时,如何建立复杂结构和不同运动方式机械部件的离散元法分析模型,已成为离散元法工程应用需要解决的主要问题.提出了一种基于图元的二维边界离散元法仿真算法,该算法采用Bresenham方法设置边界图元信息以进行邻居搜索.实例验证证明了该算法的正确性和有效性,为实现由边界的CAD模型进行边界的离散元法仿真分析奠定了基础.
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| 关 键 词： | 离散元法 Bresenham 算法 CAD模型 |
Research of Boundary DEM Detecting Basing on Computer Graphics |
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| JIA Hui-min.Research of Boundary DEM Detecting Basing on Computer Graphics[J].Science Technology and Engineering,2009,9(3). |
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| Authors: | JIA Hui-min |
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| Institution: | Dalian Jiaotong University;Dalian 116000;P.R.China |
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| Abstract: | It is an main problem for the use of DEM project that how to build complex structure and mechanical parts while using DEM to analyze the contraction between granular materials and related mechanical parts. A two-dimensional boundary DEM simulation algorithm based on graphic element is put forward, in order to realize two-dimensional Discrete Element Method (DEM) analyzing model built by boundary two-dimensional CAD model (CAD software plan). This algorithm adopts Bresenham arithmetic to set boundary graphic... |
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| Keywords: | DEM bresenham arithmetic CAD Model |
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