Aerofoil Design for Unmanned High-Altitude Aft-Swept Flying Wings

Alsahlani, A; Rahulan, Thurai

doi:10.5028/jatm.v9i3.838

Cited by 11 publications

(4 citation statements)

References 4 publications

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“…Sementara itu, pesawat glider menggunakan tipe airfoil under chambered yang merupakan jenis airfoil dengan C L yang tinggi [9]. Misi pemantauan kecelakaan pendakian gunung, dapat menggunakan perpaduan pesawat jenis flying wing dan glider yang menerapkan metode telescopic wing.…”

Section: Pendahuluanunclassified

Analisis karakteristik aerodinamika telescopic wing dengan konfigurasi sayap flying wing dan glider menggunakan metode pendekatan simulasi CFD

Azmi

Hariyanto

Hidayat

2021

Turbo

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A telescopic wing is a shape-changing method of the aircraft wing known as the morphing wing system. Wingspan extends capability on telescopic wing increasing the aspect ratio to get a high lift force. The telescopic wing on a flying wing configuration as an external wing and glider wing as an internal wing can be used to increase the coefficient lift (CL) when carrying out special missions. The aerodynamic characteristics using the Computational Fluid Dynamic (CFD) simulation approach is presented. For the 40% internal wingspan, the highest CL increment was 12.9% at a 10o angle of attack. For the 50% internal wingspan, the highest CL increment was 14.9% at a 10o angle of attack. on the 40% internal wing, the highest coefficient drag (CD) increment was 4.7%, and the largest CD increment on 50% internal was 9.5% at the angle of attack of 20o. The pressure distribution along the internal wingspan was uneven from an angle of attack of 15o due to the wing tip vortices of the external wing. Streamline pattern shown a bubble separation from the leading edge at an internal wing root by external wing tip vortices.Keywords: Morphing wing, telescopic wing, flying wing, glider

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Section: Pendahuluanunclassified

Analisis karakteristik aerodinamika telescopic wing dengan konfigurasi sayap flying wing dan glider menggunakan metode pendekatan simulasi CFD

Azmi

Hariyanto

Hidayat

2021

Turbo

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“…1b) is a composite structure based on a full-filled material (e.g. extruded polystyrene) and laminated with carbon Considering the information mentioned above, in order to increase the flight time of the UAV, structural optimization is vital for wing construction (Alsahlani and Rahulan, 2017). Furthermore, the selection of suitable air foil configuration and composite materials of the wing (Alsahlani and Rahulan, 2017) play an important and critical role in the UAV design process.…”

Section: Introductionmentioning

confidence: 99%

Vibration damping characteristics of the cork-based composite material in line to frequency analysis

Karpenko¹,

Nugaras²

2022

Journal of Theoretical and Applied Mechanics

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The conducted research suggests possibility of replacing extruded polystyrene with a renewable cork-based material in laminated composite structures. Different fractions of the cork-based material of a composite laminate have been applied. The composites have been tested employing a hammer-focused vibration method. Conforming to obtained results, the cork-based material of smaller fraction has damping properties similar to those of the extruded polystyrene composite. Integrating cork into the structure of the composite has the opportunity to develop a more eco-friendlier and sustainable product and to improve the adaptive properties of passive control systems used for vibration damping applications operating in the middle and high frequency zones.

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“…Flying wing configuration is considered as an important development direction of military aircraft and civil aircraft due to its potential benefits over conventional configurations in stealth capability, aerodynamic performance, and structural efficiency (Zhou and Liu 2015). In recent years, flying wing configuration has been widely studied (Alsahlan and Rahulan 2017;Bolsunovsky et al 2014;Pan et al 2017), and it has been considered as an ideal configuration of the future unmanned aerial vehicles (UAV) (Petterson 2006).…”

Section: Introductionmentioning

confidence: 99%

Effect of Aerodynamic Configuration Parameters on Lateral-Directional Stability of Double-Swept Flying Wing Aircraft

Pan

Huang

2019

J.Aerosp. Technol. Manag.

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Poor lateral-directional stability due to the absence of vertical stabilizer is a great risk to the aircraft with flying wing layout. In this paper, an unmanned aerial vehicle with this kind of configuration is chosen as the research object. A threedimensional model of the unmanned aerial vehicle is established, and then the sensitivity analysis is performed to obtain the effects of main aerodynamic shape parameters on lateral-directional flying quality. The results show that the roll mode and spiral mode of the aircraft meet the requirements of Level 1 flying quality in MIL-F-8785C. But the Dutch roll mode is generally divergent, which means that the flying quality of the aircraft is unacceptable. Thus it can be seen that the Dutch roll mode is the key to the dynamic stability of the aircraft. Further studies show that increasing the value of wing aspect ratio or decreasing the values of dihedral angle and torsion angle are useful for improving the Dutch roll mode. It is valuable to reveal the influence mechanism of aerodynamic shape parameters on lateral-directional flying quality for the design of flying wing aircraft.

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Aerofoil Design for Unmanned High-Altitude Aft-Swept Flying Wings

Cited by 11 publications

References 4 publications

Analisis karakteristik aerodinamika telescopic wing dengan konfigurasi sayap flying wing dan glider menggunakan metode pendekatan simulasi CFD

Analisis karakteristik aerodinamika telescopic wing dengan konfigurasi sayap flying wing dan glider menggunakan metode pendekatan simulasi CFD

Vibration damping characteristics of the cork-based composite material in line to frequency analysis

Effect of Aerodynamic Configuration Parameters on Lateral-Directional Stability of Double-Swept Flying Wing Aircraft

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