2018年1月1日 · Two major trends for span morphing are being investigated, generally applying the concept to small-scale subsonic unmanned aircraft: exploring the benefits of symmetric span morphing (the span from root to tip of the wing remains the same for the right and left sides of the aircraft) in the longitudinal performance of the aircraft; and ...

2016年6月1日 · Span morphing technology allows integrating both features in a single wing design and allows continuously adjusting the wingspan to match the instantaneous flight conditions and mission objectives. This paper develops, a novel span morphing concept, the Gear driveN Autonomous Twin Spar (GNATSpar) for a mini-UAV. The GNATSpar can be used to ...

It has been observed that a variable span morphing of tapered wing technology with a variable sweep angle can deliver up to 32.93% improved aerodynamic efficiency. This concept design can also be used for the aircraft roll motion technique instead of conventional control devices.

2018年6月1日 · Wing-level morphing affects the entire shape of the wing. It alters the twist, sweep, dihedral and span of the wing to optimise the wing shape for different scenarios, such as take-off, cruise and landing. The time evolution of morphing wing …

2019年2月7日 · This paper presents a new design for the core of a span-morphing unmanned aerial vehicle (UAV) wing that increases the spanwise length of the wing by fifty percent. The purpose of morphing the wingspan is to increase lift and fuel efficiency during extension, to increase maneuverability during contraction, and to add roll control capability ...

2011年7月6日 · Satisfying objectives of designing, fabricating, and testing a prototype morphing wing section capable of 100% span extension, while maintaining constant chord, a wind tunnel test highlighted the resulting viable aerodynamic surface in …

This paper discusses designing a span wise morphing wing, which allows a change in the aspect ratio while, at the same time, supporting structural wing loads. The aerofoil of the wing is designed using NACA 0012, increase in wing aspect ratio and span ratio is calculated.

2011年8月30日 · Satisfying objectives of designing, fabricating, and testing a prototype morphing wing section capable of 100% span extension, while maintaining constant chord, a wind tunnel test highlighted...

2024年3月19日 · The morphing wingtip technology is a multi-functional， local morphing technology used to improve wing aerodynamic performance and fuel efficiency， reduce gust loads， and enhance control performance. This paper classifies the technical benefits of morphing wingtips from the three aspects of aerodynamic characteristics， structural ...

2022年4月9日 · This paper presents the development of a novel polymorphing wing capable of Active Span morphing And Passive Pitching (ASAPP) for small UAVs. The span of an ASAPP wing can be actively extended by up to 25% to enhance aerodynamic efficiency, whilst its pitch near the wingtip can be passively adjusted to alleviate gust loads.