| 坯料网格边界延展及规则化算法 |
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| 引用本文： | 闻蕴,龚科家,郭威,胡平.坯料网格边界延展及规则化算法[J].中国机械工程,2007,18(5):594-596. |
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| 作者姓名： | 闻蕴 龚科家 郭威 胡平 |
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| 作者单位： | 吉林大学汽车动态模拟国家重点实验室,长春,130022 |
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| 基金项目： | 国家自然科学基金;国家自然科学基金 |
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| 摘 要： | 提出了一种毛坯边界非等距外延方法，即将毛坯边界节点非等距外延后，利用NURBS曲线拟合技术生成等距的新毛坯边界，再用NURBS曲面蒙皮算法生成平面，然后通过网格生成算法将生成平面离散成网格，最后用一种基于协方差矩阵特征值的坯料边界规则化算法来得到具有规则形状的坯料。
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| 关 键 词： | 非等距外延 非均匀有理B样条 有限元网格 优化规则算法 |
| 文章编号： | 1004-132X（2007）05-0594-03 |
| 修稿时间： | 2006-01-03 |
Extension and Regularization Method Based on the Boundary of Blank Mesh |
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| Wen Yun,Gong Kejia,Guo Wei,Hu Ping.Extension and Regularization Method Based on the Boundary of Blank Mesh[J].China Mechanical Engineering,2007,18(5):594-596. |
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| Authors: | Wen Yun Gong Kejia Guo Wei Hu Ping |
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| Affiliation: | State Key Laboratory of Automobile Dynamic Simulation,Jilin University,Changchun, 130022 |
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| Abstract: | An indirect algorithm based on the discrete boundary point of extended blank was presented. The boundary points of new blank were obtained by non-uniform extension of the boundary discrete points of original blank, and then the boundary curve and the new blank surface were found by NURBS technology. At the same time, an optimized algorithm for complex boundary was provided to reduce the complexity of industrial production. |
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| Keywords: | non-uniform extension NURBS finite element mesh optimal regularization method |
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