Aerodynamic study of single corrugated variable-camber morphing aerofoil concept

Dhileep, Karthick; Kumar, Deepak; Vigneswar, P.N. Gautham; Soni, Prerna; Ghosh, Santanu; Ali, Shaikh Faruque; Arockiarajan, A.

doi:10.1017/aer.2021.71

Cited by 3 publications

(4 citation statements)

References 33 publications

(38 reference statements)

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“…Bardera et al [6] established morphing geometries that could prevent flow from separation, significantly enhance the lift force coefficient, and reduce turbulence. A technical approach to UAV morphing wings was presented by Dhileep et al [18]. They investigated a single corrugated variable camber concept and demonstrated that the morphing airfoils exhibited increased the performance compared to the traditional ones.…”

Section: Introductionmentioning

confidence: 99%

Aerodynamic Analysis of Variable Camber-Morphing Airfoils with Substantial Camber Deflections

Marciniuk,

Piskur,

Kiszkowiak

et al. 2024

Energies

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In recent years, morphing wings have become not only a concept, but an aerodynamic solution for the aviation industry to take a step forward toward future technologies. However, continuously morphing airfoils became an interesting answer to provide green energy solutions. In this paper, the authors conducted experimental research on a continuously camber-morphing airfoil using the Particle Image Velocimetry (PIV) and Computational Fluid Dynamics (CFD) methods. The main objective of this work was to research a variety of morphing airfoils with different camber deflections. An average velocity distribution and turbulence distribution were compared and are discussed. The two-dimensional PIV results were compared to the CFD simulations to validate the numerical method’s accuracy and obtain the aerodynamic coefficient’s trends. A further comparison revealed that morphing airfoils have better aerodynamic performance than conventional airfoils for very low camber deflections and create substantial amounts of drag for significant camber deflections.

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Section: Introductionmentioning

confidence: 99%

Aerodynamic Analysis of Variable Camber-Morphing Airfoils with Substantial Camber Deflections

Marciniuk,

Piskur,

Kiszkowiak

et al. 2024

Energies

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“…Various studies related to this concept were also realized by researchers from the Military Technical Academy in Romania [20][21][22]. The Indian Institute of Technology Madras studied, from structural and aerodynamic perspectives, various wing configurations for morphing [23,24]. In 2017, the EU started the project Smart Morphing and Sensing (SMS), coordinated by Institut National Polytechnique de Toulouse from France and realized in collaboration with ten other partners from France, Italy, Greece, Poland, Germany, and Switzerland.…”

Section: Introductionmentioning

confidence: 99%

A Self–Tuning Intelligent Controller for a Smart Actuation Mechanism of a Morphing Wing Based on Shape Memory Alloys

Grigorie,

Botez

2023

Actuators

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The paper exposes some of the results obtained in a major research project related to the design, development, and experimental testing of a morphing wing demonstrator, with the main focus on the development of the automatic control of the actuation system, on its integration into the experimental developed morphing wing system, and on the gain related to the extension of the laminar flow over the wing upper surface when it was morphed based on this control system. The project was a multidisciplinary one, being realized in collaboration between several Canadian research teams coming from universities, research institutes, and industrial entities. The project’s general aim was to reduce the operating costs for the new generation of aircraft via fuel economy in flight and also to improve aircraft performance, expand its flight envelope, replace conventional control surfaces, reduce drag to improve range, and reduce vibrations and flutter. In this regard, the research team realized theoretical studies, accompanied by the development and wind tunnel experimental testing of a rectangular wing model equipped with a morphing skin, electrical smart actuators, and pressure sensors. The wing model was designed to be actively controlled so as to change its shape and produce the expansion of laminar flow on its upper surface. The actuation mechanism used to change the wing shape by morphing its flexible upper surface (manufactured from composite materials) is based on Shape Memory Alloys (SMA) actuators. Shown here are the smart mechanism used to actuate the wing’s upper surface, the design of the intelligent actuation control concept, which uses a self–tuning fuzzy logic Proportional–Integral–Derivative plus conventional On–Off controller, and some of the results provided by the wind tunnel experimental testing of the model equipped with the intelligent controlled actuation system. The control mechanism uses two fuzzy logic controllers, one used as the main controller and the other one as the tuning controller, having the role of adjusting (to tune) the coefficients involved in the operation of the main controller. The control system also took into account the physical limitations of the SMA actuators, including a software protection section for the SMA wires, implemented by using a temperature limiter and by saturating the electrical current powering the actuators. The On–Off component of the integrated controller deactivates or activates the heating phase of the SMA wires, a situation when the actuator passes into the cooling phase or is controlled by the Self–Tuning Fuzzy Logic Controller.

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“…Consequently, the structures we model and use in our aircraft designs are much simpler than the wings of birds, as illustrated in Figure 1. The situation at hand tells us that there is a performance deficiency in modern conventional aircraft that could be improved by using the biomimicry method [15]. In addition, designing aircraft that can undertake multiple roles requires the development of aircraft that can operate in a wider performance range, which is important for efficiency.…”

Section: Introduction 1the Motivation Behind the Morphing Structuresmentioning

confidence: 99%

“…For example, a multi-role aircraft design that can perform both low and high-payload missions can be created by changing the wing camber. This situation should remind us that producing modern conventional aircraft for different roles, such as cargo and reconnais- The situation at hand tells us that there is a performance deficiency in modern conventional aircraft that could be improved by using the biomimicry method [15]. In addition, designing aircraft that can undertake multiple roles requires the development of aircraft that can operate in a wider performance range, which is important for efficiency.…”

Section: Introduction 1the Motivation Behind the Morphing Structuresmentioning

confidence: 99%

Unleashing the Potential of Morphing Wings: A Novel Cost Effective Morphing Method for UAV Surfaces, Rear Spar Articulated Wing Camber

Ozbek

Ekici

Karakoç

2023

Drones

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The implementation of morphing wing applications in aircraft design has sparked significant interest as it enables the dimensional properties of the aircraft to be modified during flight. By allowing manipulation of the 2D and 3D parameters on the aircraft’s wings, tail surfaces, or fuselage, a variety of possibilities have arisen. Two primary schools of thought have emerged in the field of morphing wing applications: the mechanisms school and the smart surfaces approach that uses shape-memory materials and smart actuators. Among the research in this field, the Fishbone Active Camber (FishBAC) approach has emerged as a promising avenue for controlling the deflection of the wing’s trailing edge. This study revisits previous research on morphing wings and the FishBAC concept, evaluates the current state of the field, and presents an original design process flow that includes the design of a unique and innovative UAV called the Stingray within the scope of the study. A novel morphing concept developed for the Stingray UAV, Rear Spar Articulated Wing Camber (RSAWC), employs a fishbone-like morphing wing rib design with rear spar articulation in a cost-effective manner. The design process and flight tests of the RSAWC are presented and directly compared with a conventional wing. Results are evaluated based on performance, weight, cost, and complexity. Semi-empirical data from the flight testing of the concept resulted in approximately a 19% flight endurance increment. The study also presents future directions of research on the RSAWC concept to guide the researchers.

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Aerodynamic study of single corrugated variable-camber morphing aerofoil concept

Cited by 3 publications

References 33 publications

Aerodynamic Analysis of Variable Camber-Morphing Airfoils with Substantial Camber Deflections

Aerodynamic Analysis of Variable Camber-Morphing Airfoils with Substantial Camber Deflections

A Self–Tuning Intelligent Controller for a Smart Actuation Mechanism of a Morphing Wing Based on Shape Memory Alloys

Unleashing the Potential of Morphing Wings: A Novel Cost Effective Morphing Method for UAV Surfaces, Rear Spar Articulated Wing Camber

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