| 并行栅格扫描填充路径及其规划算法 |
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| 引用本文： | 黄小毛,叶春生,吴思宇,郭开波,莫健华. 并行栅格扫描填充路径及其规划算法[J]. 计算机辅助设计与图形学学报, 2008, 20(3): 326-331 |
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| 作者姓名： | 黄小毛 叶春生 吴思宇 郭开波 莫健华 |
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| 作者单位： | 华中科技大学材料成形及模具技术国家重点实验室,武汉,430074 |
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| 基金项目： | 国家科技型中小企业技术创新基金 |
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| 摘 要： | 深入分析快速成形制件翘曲变形的原因后,提出一种全新的扫描填充路径--并行栅格路径及其规划算法.按照这种路径能够近似、并行地完成整个待成形二维平面区域的扫描填充过程,在减小XY向温度梯度的同时,均匀化不同位置材料成形后的冷却收缩约束力,使得不同位置材料的冷却收缩趋于同步和均匀,减小了制件的整体翘曲变形量.实验表明,该算法能够在与其他类型路径的规划算法大致相当的时间和空间复杂度下,获得扫描填充性能更加优越的路径.
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| 关 键 词： | 快速成形 翘曲变形 扫描填充 并行栅格路径 |
| 收稿时间： | 2007-07-25 |
| 修稿时间： | 2007-10-22 |
Path Planning for Parallel Raster Scanning and Filling |
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| Huang Xiaomao,Ye Chunsheng,Wu Siyu,Guo Kaibo,Mo Jianhua. Path Planning for Parallel Raster Scanning and Filling[J]. Journal of Computer-Aided Design & Computer Graphics, 2008, 20(3): 326-331 |
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| Authors: | Huang Xiaomao Ye Chunsheng Wu Siyu Guo Kaibo Mo Jianhua |
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| Abstract: | After analysis of causes of the warpage distortion of parts in rapid prototyping, a novel toolpath planning, parallel raster scanning and filling path planning, is presented. By this approach, a twodimensional plane region can be filled or scanned in an approximately parallel manner. The temperature grads in XY directions can be reduced while the constraint force originating from cooling shrinkage in different area can be homogenized. Consequently, the quantity of distortion can be decreased. Experimental results show that the algorithm calculates the tool-paths with more ascendant performance than other approaches. |
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| Keywords: | rapid prototyping warpage distortion scanning and filling parallel raster tool-paths |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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