Development and performance evaluation of a morphing wing design using shape memory polymer and composite corrugated structure

Azzawi, Wessam Al

doi:10.1080/14484846.2022.2047474

Cited by 5 publications

(3 citation statements)

References 33 publications

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“…Conventional and morphing wing aircraft have been studied and estimated [ 93 , 94 ]. Studies that investigated the performance of morphing aircraft addressed aerodynamical performance aspects such as

and

as well as flight envelopes for flight dynamics and control [ 27 , 31 , 90 , 91 , 95 , 96 , 97 , 98 , 99 ]. Some representative works of a camber morphing wing aircraft’s aerodynamical characteristics compared their performance to those of conventional wing aircraft [ 72 , 73 ].…”

Section: Motivationmentioning

confidence: 99%

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Enhanced Range and Endurance Evaluation of a Camber Morphing Wing Aircraft

Joe

Majid

2023

Biomimetics

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Flight range, endurance, maneuverability, and agility are the key elements that determine an aircraft’s performance. Both conventional and morphing wing aircraft have been well studied and estimated in all aspects of performance. When considering the performance of morphing aircraft, most works address aspects of the aerodynamical performance such as L and D as well as flight envelopes for flight dynamics and control perspectives. However, the actual benefits of adopting morphing technologies in practical aspects such as aircraft operation, mission planning, and sustainability have not been addressed so far. Thus, this paper addresses the practical aspect of the benefits when adopting a camber morphing wing aircraft. Identical geometrical and computational conditions were applied to an already-existing aircraft: the RQ-7a Shadow. The wing structure was switched between a fixed wing and a camber morphing wing to generate conventional and morphing wing geometries. The fixed-wing cases had varying flap deflection angles, and the camber morphing wing cases had varying camber rates from 4% to 8%. Once the CL values of the fixed and morphing wing cases were matched up to two significant figures, the CD and CL/CD were analyzed for these matching cases to calculate the flight endurance, range, and improvement. When NACA 6410 is adopted, a 17% improvement in flight range and endurance average was expected. In the case of NACA 8410, an average 60% improvement was expected.

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Section: Motivationmentioning

confidence: 99%

“…Among many topics, this paper relates to morphing wing analysis regarding design and implementation topic (3)—performance and characteristics analysis of morphing wing aircraft [ 89 , 90 , 91 ]. Moreover, among the many types of morphing, this paper mainly targets camber morphing in the airfoil.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Range and Endurance Evaluation of a Camber Morphing Wing Aircraft

Joe

Majid

2023

Biomimetics

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“…For example, SMP based corrugated structure has been used as a skin system for a variable camber morphing wing design and numerically simulated to compute the feasibility of compliant corrugated skin Gong et al [25]. Similarly, Azzawi [26] uses SMPC corrugated structure to morph the trailing section of the miniature UAV wing. The design uses SMPC corrugated structure as a mid-core section to provide compliance to the wing structure.…”

Section: Introductionmentioning

confidence: 99%

A numerical approach for modeling response of shape memory polymer composite corrugated structure

Bhola,

Saurav,

Mujumdar

et al. 2023

Smart Mater. Struct.

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This study presents a numerical framework for a unidirectional shape memory polymer-based composite (SMPC) corrugated structure. The framework combines an empirically modified constitutive model of SMP with modified temperature-dependent laminate theory. Model parameters in the SMP constitutive relation are determined and calibrated from the DMA tests. Subsequently, the numerical implementation of the SMP model is validated with experimental results from the three-point bending test. This was followed by simulations to investigate the thermo-mechanical response of SMPC lamina. The findings from the simulations revealed the influence of SMPC fiber orientation and volume fraction on stored strain through the spring back effect. Finally, the framework is applied to investigate the shape memory response of a unidirectional SMPC trapezoidal corrugated structure. The simulations highlight the potential of the SMPC corrugated structure as load bearing adaptive structure for wing morphing applications.

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Recent Advances and Future Prospects for Construction Strategies of Flexible Electromagnetic Protection Patches

Gong,

Chen,

Cui

et al. 2024

Adv Materials Technologies

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With the rapid development of morphing aircraft, increasing demands are put forward for flexible patches (FP). In addition to sufficient deformation capability and mechanical strength, FP are required for electromagnetic continuity especially at active gaps of morphing aircraft. The existing FP are developed with enhanced deformability and load‐bearing capacity, yet their limits in electromagnetic wave (EMW) absorption and electromagnetic interference (EMI) shielding cannot meet practical applications of electromagnetic protection, and their interlayer bonding also needs to be strengthened. Besides, flexible electromagnetic protection materials (FEMPM) have been developed to address electromagnetic radiation in wearable electronics and other fields, yet their deformability and mechanical properties still need to be improved. Thereon, based on reasonable structure design and fabrication methods, delicate integration of FP and FEMPM can offer a significant paradigm to construct flexible electromagnetic protection patches (FEMPP) with great potentials in engineering applications. Herein, recent advances in FP as well as FEMPM are consolidated, and detailed development in multifunctional construction of FEMPP are involved. Furthermore, challenges and developing perspectives are also discussed, aiming to inspire the relevant researches and promote development in the related fields.

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Development and performance evaluation of a morphing wing design using shape memory polymer and composite corrugated structure

Cited by 5 publications

References 33 publications

Enhanced Range and Endurance Evaluation of a Camber Morphing Wing Aircraft

Enhanced Range and Endurance Evaluation of a Camber Morphing Wing Aircraft

A numerical approach for modeling response of shape memory polymer composite corrugated structure

Recent Advances and Future Prospects for Construction Strategies of Flexible Electromagnetic Protection Patches

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