扭曲变形翼的新概念设计 扭曲变形翼的新概念设计
Noppawit Kumkam1, Napat Suratemeekul1, Suwin Sleesongsom1
1Department of Aeronautical Engineering, International Academy of Aviation Industry, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand.
Biomimetics (Basel, Switzerland)
|February 25, 2025
概括
这项研究表明,无人机上的扭翼尖 (TWT) 可以提高分歧速度和升空效率. 然而,TWT仅为飞速度提供了微不足道的改进,为无人机空气弹性增强提供了关键的见解.
科学领域:
- 航空工程 航空工程
- 航空航天工程 航空航天工程
- 机械工程 机械工程
背景情况:
- 之前对无人驾驶飞行器 (UAV) 的研究往往忽视了分歧速度和升空效率,主要关注的是飞速度.
- 空弹性行为和结构动力学对于无人机性能和安全至关重要.
研究的目的:
- 研究扭翼尖 (TWT) 技术对无人机的空气弹性和结构行为的影响.
- 通过探索TWT在改善静态和动态气弹性现象方面的潜力来提高无人机的性能.
- 为无人机应用提供关于特定扭转变形翼概念的基本见解.
主要方法:
- 利用 MATLAB 和 ANSYS 模拟来建模和分析简化 TWT 设计的气弹性效应.
- 采用导航模式偏好技术来为TWT设计主要的扭矩模式.
- 进行数值和实验验证,以确保开发模型的可信性和适用性.
主要成果:
- 通过其独特的扭曲变形能力,TWT设计展示了改进的结构和空气弹性性能.
- 分离速度分析表明,扭转轴位置不应超过空气动力学中心 (0.2103弦长).
- 在TWT扭转角度范围为0%至27.7%内实现了最佳的分歧速度改进,在30°扭转时,峰值提升效率为0.68%.
结论:
- TWT概念显著提高了无人机的性能,特别是在分歧速度和升降效率方面.
- 该研究为TWT设计奠定了理论基础,强调了空气动力学中心定位的重要性.
- 虽然TWT在飞速度上表现出有限的改善,但其在其他空气弹性方面的好处为先进的飞机控制法提供了潜力.
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