Rotary Wings Morphing Technologies: State of the Art and Perspectives

Wilbur, Matthew L.; Mistry, Mihir; Lorber, Peter F.; Blackwell, Robert H.; Barbarino, Silvestro; Lawrence, Thomas; Arnold, Uwe

doi:10.1016/b978-0-08-100964-2.00024-1

Cited by 11 publications

(5 citation statements)

References 37 publications

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“…6,27,29 Although the benefits of this technology strongly depend on the class of vehicle (civil/military, manned/ unmanned, short/medium/long range), its configuration (e.g., fixed/rotary wing), an average increase of 20% of efficiency has been predicted, in synergy with the technologies above. 6,30 No technology can be applied irrespectively of the objectives. In other words, there should be no sense in applying some innovation just in order to make something different or novel.…”

Section: Aerospace Growth and Environmental Impactmentioning

confidence: 99%

Morphing wings review: aims, challenges, and current open issues of a technology

Ameduri

Concilio

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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The scope of this work is to provide a critical review on the expectations about the morphing wing technology against the current open issues and showstoppers. In synergy to other emerging and promising technologies, morphing is asked for bridging the evident gap between the current growth trend of the aerospace compartment and its impact onto the environment. The potential of morphing, in particular, its primary impact on the aerodynamic efficiency of the aircraft, primed the investigation of different technologies, achieving interesting results but often highlighting limitations and showstoppers against the airworthiness regulations. The authors focus their attention on some specific aspects that characterize the morphing wing attachments and that may represent weakness points for the maturation of the technology: the load transmission of the movable parts to the supporting wing box, the way the flexibility–rigidity paradox is addressed by specific critical components (the skin), the scalability dependence of the morphing architectures, and the specific aeroelastic behavior of the nonconventional architectures.

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Section: Aerospace Growth and Environmental Impactmentioning

confidence: 99%

Morphing wings review: aims, challenges, and current open issues of a technology

Ameduri

Concilio

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…In general drones can be classified into two categories; fixed wing and rotary wing as shown in figure 1 [35,36,37].…”

Section: Dronesmentioning

confidence: 99%

Spreading Code Identification of Legal Drones in IoT Environment

Alheeti

Al-Ani

McDonald-Maier

2019

2019 Eighth International Conference on Emerging Security Technologies (EST)

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The widespread use of drones has become very common today with large-scale civil and military applications. In the next few coming years, the outlook is expected that the number of drones will reach millions. So, these need to be well organised and managed in order to achieve the benefits of IoT with this accelerated environment. Drones or Unmanned Aerial Vehicles (UAVs) must achieved a level of communications to authenticate a legal working. The proposed approach concentrated on preparing each drone with identification key based on the combination of its international sim number with the date of the first action and the local country code. This approach is called Drone IDentification (DID) that generate a unique code for each drone via spreading technique. In this case any drone not apply this regulation is considered as unauthenticated drone and does not allowed to fly. This approach is very important to establish drone regulation via IoT.

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“…Liebeck [8] later applied the Gurney flap as a simple lift-enhancing device on commercial aircraft and rotorcraft. Studies have shown that a Gurney flap with a height of 2% of the chord length can yield an approximately 30% increase in airfoil lift [9]. The effectiveness of Gurney flap techniques has also been demonstrated in improving the performance of rotorcraft.…”

Section: Introductionmentioning

confidence: 99%

Aerodynamic Enhancement of Vertical-Axis Wind Turbines Using Plain and Serrated Gurney Flaps

Chen,

Yang,

Zhang

et al. 2023

Applied Sciences

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In light of the escalating demand for renewable energy sources, vertical-axis wind turbines have emerged as a pivotal technical solution for addressing the challenge of clean energy supply in residential and urban areas. As a simple and feasible passive control method, the plain Gurney flap (PGF) is widely applied to improve turbine aerodynamic performance. In this paper, the influence of a novel serrated gurney flap (SGF) with different flap heights is studied on the NACA0021 airfoil by numerical simulations. The findings demonstrate that, compared with the PGF, the SGF reduces the trailing edge reverse vortices from a pair to a single vortex and possesses lower drag. When the flap height reaches 6% of the chord (6%c), the lift-to-drag ratio of SGF surpasses that of PGF. A turbine rotor is equipped with an SGF and a PGF to compare their performances. The result confirms the flap effect depending on the rotor’s tip speed. At a low tip speed ratio (TSR), the PGF works better than the SGF. The SGF is preferred over the PGF for a higher tip speed ratio (TSR > 2.5). With the 6%c flap height, the performance of the SGF rotor surpasses the PGF by 13.9% at TSR = 2.62.

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Rotary Wings Morphing Technologies: State of the Art and Perspectives

Cited by 11 publications

References 37 publications

Morphing wings review: aims, challenges, and current open issues of a technology

Morphing wings review: aims, challenges, and current open issues of a technology

Spreading Code Identification of Legal Drones in IoT Environment

Aerodynamic Enhancement of Vertical-Axis Wind Turbines Using Plain and Serrated Gurney Flaps

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