降落的动态姿势测试技术结合了立体视觉和CAD数字模型
Wendong Zhang1,2, Xianmin Chen1,2, Baoquan Shi3
1National Key Laboratory of Strength and Structural Integrity, Xi'an 710065, China.
Sensors (Basel, Switzerland)
|November 13, 2025
概括
本研究介绍了一种使用立体视觉和CAD模型进行精确着陆动态姿势测量的视觉方法. 该技术准确地追踪着陆轮运动,这对于结构完整性测试和飞机安全至关重要.
科学领域:
- 航空航天工程 航空航天工程
- 机械工程 机械工程
- 计算机视觉 计算机视觉
背景情况:
- 降落架对于飞机的安全至关重要,在运行过程中经历了高压力.
- 精确的结构测试需要精确测量着陆轮动力学.
- 现有的方法面临环境因素的挑战,如闭塞.
研究的目的:
- 开发动态着陆位的视觉测量方法.
- 为了同步物理着陆轮运动与其CAD数字模型.
- 提高着陆试验的准确性和环境适应性.
主要方法:
- 结合立体视觉和CAD数字模型进行测量.
- 在CAD模型中建立测量参考.
- 使用近距离光谱和双眼立体视觉来统一坐标系统.
- 追踪物理着陆架上的关键点以进行同步.
主要成果:
- 在0.1°以下的角度误差中实现了根平均平方误差 (RMSE).
- 在0.3mm以下的轨迹误差中实现了RMSE.
- 经过证明的准确性,适用于着陆引和延伸测试.
结论:
- 拟议的方法满足着陆位姿势测量的准确性要求.
- 与现有技术相比,提供了更好的环境适应性.
- 能够获取着陆架上任何点的姿势信息.
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