Development of a morphing UAV for optimal multi-segment mission performance

A. Gatto
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引用次数: 1

Abstract

The need for innovative solutions to enable aerial platforms to fly faster, higher, and longer continues to remain a primary focus for airframe designers. This paper outlines work undertaken to apply a morphing wing warping technology onto a generic Unmanned Aerial Vehicle to deliver enhanced flight performance, efficiency and control capabilities. The prototype employs wings of novel construction which provide both near resistance-free compliance in twist as well as adequate structural stiffness to resist applied loads; all while preserving an aerodynamically smooth surface. Used in combination with developed and integrated closed-loop feedback control architecture, a real-time, non-linear, span-wise wing twist adjustment capability required for optimised flight under differing operating conditions and flight requirements, is demonstrated. Experimental results obtained from a wind tunnel test program show up to a 72% increase in lift to drag ratio under certain conditions compared to a fixed baseline providing some confidence that the combination could be used to realise a step change in flight performance.
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基于多段任务性能优化的变形无人机研制
对创新解决方案的需求,使空中平台飞得更快、更高、更长,仍然是机身设计师的主要关注点。本文概述了将变形机翼翘曲技术应用于通用无人机以提高飞行性能、效率和控制能力的工作。该原型机采用了新型结构的机翼,在扭转方面提供了接近无阻力的顺应性,以及足够的结构刚度来抵抗施加的载荷;同时保持空气动力学光滑的表面。结合开发和集成的闭环反馈控制体系结构,演示了在不同操作条件和飞行要求下优化飞行所需的实时、非线性、展向翼扭调整能力。从风洞测试程序中获得的实验结果显示,在某些条件下,与固定基线相比,升阻比增加了72%,这为这种组合可以用来实现飞行性能的阶跃变化提供了一定的信心。
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