列车气动试验数据可视化系统

江帆; 田红旗; 陈维平; 刘堂红

列车气动试验数据可视化系统

江帆^{1, 2,},
田红旗²,
陈维平¹,
刘堂红²

1.
华南理工大学机械工程学院, 广东广州 510641
2.
中南大学高速列车研究中心, 湖南长沙 410075

详细信息

作者简介:
江帆(1974-), 男, 湖南慈利人, 华南理工大学博士研究生, 从事材料成型及计算机应用研究

中图分类号: U270.1
计量
- 文章访问数: 337
- HTML全文浏览量: 150
- PDF下载量: 191
- 被引次数: 0
出版历程
- 收稿日期: 2003-07-01
- 刊出日期: 2004-02-25

Data visualization system of train aerodynamics test

1.
School of Mechanical Engineering, South China University of Technology, Guangzhou 510641, China
2.
Center of High-Speed Train Research, Central South University, Changsha 410075, China

More Information

Author Bio:
JIANG Fan(1974-), male, doctoral student, 86-13119582524, Jiangfan330@163.com

摘要

摘要: 根据列车气动试验数据处理对可视化的特殊要求, 研究了试验数据可视化方法及系统实现, 采用数据场网格划分和基于等参变换的区域映射插值相结合的插值方法, 改进了扫描线算法, 采用面向对象的软件工程思想编制了试验数据可视化系统。应用实例表明该系统能快速、形象、方便地处理试验数据。
- 列车 /
- 空气动力学 /
- 试验数据可视化 /
- 算法改进 /
- 面向对象的程序
Abstract: According to the data of train aerodynamics test, the test data visualization means was studied, and the system of test visualization was realized, the new arithmetic combined data field meshing and region-mapping interpolating was created, the scanning arithmetic was improved, the object-oriented program was adopted in the system. An example indicates that this system can deal with test data rapidly, visually and conveniently.
- train /
- aerodynamics /
- test data visualization /
- arithmetic improving /
- object-oriented program

HTML全文

图 1 第一四边形的形成

Figure 1. Forming of the first element

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图 2 三叉树搜索

Figure 2. Ternary tree searching

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图 3 试验数据场网格划分实例

Figure 3. Meshing example of test data field

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图 4 实际单元

Figure 4. Real element

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图 5 母单元

Figure 5. Master element

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图 6 实际单元xoy投影

Figure 6. xoy plane projection of real element

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图 7 母单元xoy投影

Figure 7. xoy plane projection of master element

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图 8 改进后的扫描线算法

Figure 8. Improved scanning arithmetic

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图 9 可视化系统的对象模型

Figure 9. Object model of visualizing system

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图 10 系统主界面

Figure 10. Main interface of system

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图 11 头车的等值线

Figure 11. Contour of head carbody

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图 12 头车的云图显示

Figure 12. Cloud picture of head carbody

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图 13 矢量场箭标表示

Figure 13. Arrow picture of vector field

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图 14 矢量场线表示

Figure 14. Streamline picture of vector field

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参考文献(8)

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[4]	Sliver D. Objectoriented visualization[J]. IEEE Computer Graphics and Applications, 1995, 15(3): 143-152. https://www.cnki.com.cn/Article/CJFDTOTAL-JSJF202104004.htm
[5]	CUI Han-guo. Visualization of 3-D data fields[J]. Journal of Naval Academy of Engineering, 1994, 11(1): 24-31. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZGTS201606005.htm
[6]	ZHUSong-lin, LU Rui-song. The realization of flow visualization in computational fluid mechanics[J]. Journal of Wuhan Transportation University, 1996, 20(3): 249-253. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-XJSF202201005.htm
[7]	YUAN Zheng-qiang, BAI Shao-liang, LI Zheng-liang. Object-oriented finite element programming[J]. Journal of Chongqing Construction University, 2000, 5(Sup): 144-151. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-HNSB202105011.htm
[8]	GU Yuan-xian, MA Zheng-yang, GUAN Zhen-qun. A method of automatic generation of quadrilateral-element meshes on arbitrary plane domain[J]. Journal of Computer Aided Design and Computer Graphics, 1998, 10(5): 432-439. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-JSJX202102007.htm