通用导弹雷达罩曲面分片展开系统的开发

李正洲; 肖天航; 昂海松; 陆召严

doi:10.13700/j.bh.1001-5965.2015.0839

通用导弹雷达罩曲面分片展开系统的开发

doi: 10.13700/j.bh.1001-5965.2015.0839

南京航空航天大学航空宇航学院, 南京 210016

基金项目:

机械结构力学及控制国家重点实验室开放课题 1001-IZD15001-1505 MCMS-0415G01

详细信息

作者简介:
李正洲, 男, 博士研究生。主要研究方向:飞机总体设计、高超声速飞行器。E-mail:aksu@nuaa.edu.cn

昂海松, 男, 硕士, 教授。主要研究方向:飞机总体设计、微型飞行器与微系统。E-mail:ahs@nuaa.edu.cn

陆召严, 男, 博士研究生。主要研究方向:飞机总体设计。E-mail:luzhaoyan@nuaa.edu.cn

通讯作者:
肖天航, 男, 博士, 副教授。主要研究方向:飞机总体设计、计算流体力学。E-mail:xthang@nuaa.edu.cn

中图分类号: V221⁺.92
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出版历程
- 收稿日期: 2015-12-21
- 录用日期: 2016-05-20
- 网络出版日期: 2017-12-20

Development of a generalized surface partition and projection system for missile radome

College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Funds:

State Key Laboratory of Mechanics and Control of Mechanical Structures Open Topic Funding 1001-IZD15001-1505 MCMS-0415G01

More Information

Corresponding author: XIAO Tianhang, E-mail: xthang@nuaa.edu.cn

摘要

摘要:
根据导弹雷达罩频率选择表面（FSS）的设计要求，研究发展了一种通用的雷达罩曲面的分片、展开算法和相关应用软件系统。算法对任意C²连续曲面，以高斯曲率的绝对值对分片面积的积分与曲面总面积的比值作为曲面是否可展的评定参数，并以此为阈值对不可展开外形雷达罩曲面进行近似分片；使用构造十字基带展开法对分片展开为平面形状。在以上算法基础上，首先使用MFC开发了应用程序框架，并采用OpenGL显示雷达罩曲面的分片操作，最后对分片数据输出AutoCAD格式便于分片贴层材料的切割加工。某型非旋成体导弹头罩的算例表明本文发展的导弹雷达罩曲面分片与展开算法有较高的精度，满足工程设计要求。
- 导弹 /
- 雷达罩 /
- 高斯曲率 /
- 曲面分片 /
- 计算机图形学
Abstract:
To meet the technical requirements of missile radome frequency selective surface (FSS), a partition and projection system of radome surface was proposed and developed. Based on the study of approximate partition and projection of complex surface, the partition coefficient was defined as the ratio of the integration of the absolute value of Gaussian curvature to its area, and the controlling value for surface partition is the summation of partition coefficient of the accumulated surface elements; the surface partitions was projected into 2D shapes by using cross baseband expansion method. On the basis of the above algorithms and data operation, an application framework was developed by using MFC, and the surface data operation was visualized with OpenGL. The surface projection data can be exported into AutoCAD format for subsequent fabrication. A successful application for a missile radome surface demonstrates that, the partition/projection method has high accuracy and satisfies the design requirements.
- missile /
- radome /
- Gaussian curvature /
- surface partition /
- computer graphics

HTML全文

图 1 不同雷达罩的高斯曲率

Figure 1. Gaussian curvature of different radomes

下载: 全尺寸图片幻灯片

图 2 曲面展开基点的选取

Figure 2. Selection of base point of surface projection

下载: 全尺寸图片幻灯片

图 3 展开前后基点周围的角度变化

Figure 3. Angles around base point change before and after projection

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图 4 四边形单元待定节点的确定

Figure 4. Determination of quadrilateral cell nodes

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图 5 文档、视图与用户的关系

Figure 5. Relationship among document, view and user

下载: 全尺寸图片幻灯片

图 6 曲面分片展开的可视化过程

Figure 6. Visualization of surface partition and projection

下载: 全尺寸图片幻灯片

图 7 CGLView类中的函数调用关系

Figure 7. Functions call relationship in CGLView class

下载: 全尺寸图片幻灯片

图 8 某型导弹CAD模型

Figure 8. CAD model of a missile

下载: 全尺寸图片幻灯片

图 9 半块头罩外形分片投影

Figure 9. Shape partition projection of a half radome

下载: 全尺寸图片幻灯片

表 1 分片展开后的面积误差

Table 1. Area error after projection of partitions

曲面编号 1 2 3 4 5 6 7 8 9

S_error/% 2.513 64 2.394 64 6.031 60 9.512 05 7.533 31 6.413 17 2.121 63 2.659 73 5.509 07

下载: 导出CSV

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