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| 车身曲面逆向设计投影法参数化方法的应用 | |
| 引用本文： | 李旭,高峰,杨宪武,王玉林. 车身曲面逆向设计投影法参数化方法的应用[J]. 汽车技术, 2007, 0(5): 24-27 |
| 作者姓名： | 李旭 高峰 杨宪武 王玉林 |
| 作者单位： | 1. 北京航空航天大学;山东理工大学 2. 北京航空航天大学 3. 山东理工大学 4. 青岛大学 |
| 基金项目： | 山东省科学院科研项目;山东理工大学校科研和教改项目 |
| 摘 要： | 针对在汽车车身曲面逆向设计中很难由散落数据点云构造出合适光顺曲面的问题，提出了一种以Hoschek方法确定散乱数据点云的边界线、以基面投影法确定其他散乱数据点云参数值的逆向算法：给出了一种重构曲面的拟合方法，结合车身部件上散乱数据点云的特点，建立了该算法的数学模型，并通过VC＋＋6．0进行了编程实现。与通过UG得到的插值曲面比较可以看出，该拟合方法能够更好地对原曲面进行再现。 |
| 关 键 词： | 车身曲面 逆向设计 参数化 拟合曲面 |
| 文章编号： | 1000-3703(2007)05-0024-03 |
Application of Messy Points Cloud''''s Parameterization Based on Reverse Designing of an Automobile Body Curve Surface |
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| Li Xu,Gao Feng,Yang Xianwu,Wang yulin. Application of Messy Points Cloud''''s Parameterization Based on Reverse Designing of an Automobile Body Curve Surface[J]. Automobile Technology, 2007, 0(5): 24-27 | |
| Authors: | Li Xu Gao Feng Yang Xianwu Wang yulin |
| Affiliation: | 1.Beijing University of Aeronautics and Astronautics;2.Shandong University of Technology;3.Qingdao University |
| Abstract: | Aiming at the difficult problem associated with reconstructing a fitting and smooth surface using random points cloud in the reverse designing of an automobile body curve surface.An improved algorithm was proposed,the algorithm fix on the borderline using the Hoschek method and utilize the Base Projection method to attain the parameterization of the other random points cloud.A fitting method is given for the reconstruction of automobile body.Based on the feature of random points cloud of automobile body,a math model integrating the proposed algorithm was formed,and achieved by VC++6.0 program.Compared with the interpolation surface from UG,a much more similar one with the original surface was given using the proposed algorithm. |
| Keywords: | utomobile body curve surface Reverse designing Parameterization Fitting surface |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |