三维重建的飞机机动动作库设计与可视化

苏光旭; 张登成; 魏金鹏; 李海泉; 张艳华; 雷玉昌

doi:10.13700/j.bh.1001-5965.2020.0160

三维重建的飞机机动动作库设计与可视化

doi: 10.13700/j.bh.1001-5965.2020.0160

1.
空军工程大学航空工程学院, 西安 710038
2.
中航工业沈阳飞机设计研究所, 沈阳 110000

详细信息

通讯作者:
张登成, E-mail: dengcheng_zhang@163.com

中图分类号: V212.13⁺5
计量
- 文章访问数: 791
- HTML全文浏览量: 75
- PDF下载量: 142
- 被引次数: 0
出版历程
- 收稿日期: 2020-04-23
- 录用日期: 2020-06-13
- 网络出版日期: 2021-06-20

Design and visualization of 3D reconstruction of aircraft maneuver movements library

1.
Aeronautics Engineering College, Air Force Engineering University, Xi'an 710038, China
2.
AVIC Shenyang Aircraft Design and Research Institute, Shenyang 110000, China

More Information

Corresponding author: ZHANG Dengcheng, E-mail: dengcheng_zhang@163.com

摘要

摘要:
机动动作库是飞机空战仿真的重要基础，可靠的、具有针对性的机动动作库能够提高空战仿真的真实性和应用价值。为了建立具有针对性的机动动作库，提出了一种通过三维逆向建模进行气动特性计算再建立飞机机动动作库的技术途径，对气动参数未知飞机的空战仿真问题提供了技术支撑。首先，对飞机的几何外形进行了三维重建，计算分析了其纵向气动特性；然后，将气动数据加入飞行仿真的限制环节，设计了针对该型飞机典型战术动作的机动动作库；最后，基于MATLAB函数进行了机动动作的可视化研究。研究结果表明：机动动作库体现了对于飞机类型的针对性和可靠性，可视化实现了飞行轨迹和飞机姿态的三维显示及参数游标，为空战决策、空战仿真模拟训练和提高作战效能奠定了基础。
- 三维重建 /
- 气动特性 /
- 飞行仿真 /
- 机动动作库 /
- 可视化
Abstract:
Maneuver movements library is an important basis for aircraft air combat simulation. Reliable and targeted maneuver movements library can improve the authenticity and application value of air combat simulation. In order to establish a targeted maneuver movements library, a technical approach of calculating aerodynamic characteristics through 3D reverse modeling and then establishing the maneuver movements library of the aircraft is proposed, which provides technical support for the air combat simulation of aircraft with unknown aerodynamic parameters. Firstly, the aircraft's geometry was reconstructed in three dimensions, and its longitudinal aerodynamic characteristics were calculated and analyzed. Secondly, the aerodynamic data was added into the restricted link of flight simulation, and a maneuver movements library for the typical tactical movements of the aircraft was designed. Finally, based on MATLAB function, the visualization of maneuver movements was studied. The results show that the maneuver movements library reflects the pertinence and reliability of aircraft types, and visualizes the 3D display of flight trajectory and aircraft attitude and the parameter cursor, which lays a foundation for air combat decision-making, air combat simulation training and combat effectiveness improvement.
- 3D reconstruction /
- aerodynamic characteristics /
- flight simulation /
- maneuver movements library /
- visualization

HTML全文

图 1 飞机照片逆透视变换

Figure 1. Inverse perspective conversion in airplane photos

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图 2 花瓶的三维重建及误差分析

Figure 2. Three-dimensional reconstruction and error analysis of vase

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图 3 飞机机头锥的重建过程

Figure 3. Reconstruction process of aircraft nose cones

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图 4 整机线框模型与渲染效果

Figure 4. Machine wireframe model and rendering effect

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图 5 网格划分

Figure 5. Mesh generation

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图 6 不同网格数的网格划分

Figure 6. Mesh generation with different mesh quantities

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图 7 模型算例验证

Figure 7. Verification of model examples

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图 8 飞机纵向气动特性

Figure 8. Longitudinal aerodynamic characteristics of aircraft

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图 9 机动动作库设计流程

Figure 9. Maneuver movements library design process

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图 10 小角度俯冲理论控制模型

Figure 10. Small-angle diving theory control model

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图 11 小角度俯冲可用控制量随时间变化

Figure 11. Variation of controllable small-angle diving with time

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图 12 限制环节修正流程

Figure 12. Limit link correction process

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图 13 模型初始化

Figure 13. Model initialization

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图 14 部分机动动作可视化演示

Figure 14. Visual demonstration of partial maneuver movements

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图 15 参数游标演示

Figure 15. Parameter cursor demonstration

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表 1 不同网格数下升力系数和阻力系数计算结果

Table 1. Calculation results of lift coefficient and drag coefficient with different mesh quantities

网格分类	网格数/10⁴	C_L	C_D
粗网格	483	5.241 4×10^-1	7.591 9×10^-2
中网格	922	5.235 6×10^-1	7.612 7×10^-2
细网格	1 473	5.224 3×10^-1	7.754 8×10^-2
方差		5.041 5×10^-7	5.240 1×10^-7

下载: 导出CSV

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