Results 1 to 10 of about 48,655 (212)

Numerical simulation of the transition flight aerodynamics of cross-shaped quad-tiltrotor UAV [PDF]

open access: yesScientific Reports
In order to enhance the stability of the tilt transition process, a new configuration of Quad-Tiltrotor UAV was presented in this paper. Firstly, numerical simulation was used to calculate and analyze the aerodynamic interaction between the front rotor ...
Siliang Du, Yi Zha
doaj   +2 more sources

FUSELAGE SHAPE OPTIMIZATION AIMED AT WING-FUSELAGE CONFIGURATION DRAG REDUCTION AT SUPERSONIC SPEEDS

open access: yesНаучный вестник МГТУ ГА, 2017
The problem of fuselage shape optimization of the wing-body configuration is considered in the following three formulations. In the first one, the angle of attack is fixed and equal to zero, the wing has a symmetric airfoil, and the fuselage is based on ...
N. D. Ageev, A. A. Pavlenko
doaj   +1 more source

Empennage sizing with the tail volume complemented with a method for dorsal fin layout [PDF]

open access: yesINCAS Bulletin, 2021
Purpose: Provide good values for the tail volume coefficient and the lever arm as a percentage of the fuselage length. Provide a statistical method for dorsal fin layout.
Dieter SCHOLZ
doaj   +1 more source

Improving the Aerodynamic Performance of WIG Aircraft with a Micro-Vortex Generator (MVG) in Low-Speed Condition

open access: yesAerospace, 2023
This present study investigated the potential of passive flow control to reduce induced drag by using a micro-vortex generator (MVG) at a backward-facing step (BFS) location.
Zinnyrah Methal   +5 more
doaj   +1 more source

Contribution ofWing, Vertical Tail and Fuselage on Airplane Stability with Failed Outboard Engine [PDF]

open access: yesEngineering and Technology Journal, 2009
The Effect of wing, vertical tail, and fuselage design parameters on airplane stabilitywith failed outboard engine presents in this study. Boeing (747-400) have been selectedfor available data.
Mohamed A. R.Yass   +2 more
doaj   +1 more source

PEMANFAATAN LIMBAH TANDAN KOSONG SAWIT (TKS) SEBAGAI MATERIAL ALTERNATIF DALAM PEMBUATAN BADAN WAHANA TERBANG TIPE FIXED WING ATHA MAPPER 2150

open access: yesRekayasa Mesin, 2022
To improve the application and use value of Palm Oil Empty Fruit Bunch (OPEFB) waste as a composite material, the research team conducted research related to the utilization OPEFB fiber as an alternative material to replace carbon fiber in the ...
Kaspul Anuar   +2 more
doaj   +1 more source

Research on Calculation Method for Acoustic Scattering of Helicopter Noise

open access: yesXibei Gongye Daxue Xuebao, 2020
A new calculation method of helicopter rotor/fuselage acoustic scattering is developed. Firstly, a CFD analysis model is developed to simulate flow field of the rotor, which is based on the motional embedded grid system and RANS equations, and provides ...

doaj   +1 more source

Acoustic scattering effect prediction of helicopter fuselage based on BEM and convective FW–H equation

open access: yesActa Acustica, 2022
The main acoustic noise source of helicopters is supposed to be the rotor blades, but the scattering effect of the helicopter fuselage sometimes cannot be ignored.
Wang Zeyang, Huang Jun, Yi Mingxu
doaj   +1 more source

Structural comparison of vertical and horizontal layout of carrying arms of rotary-wing UAV with finite element analysis

open access: yesEuropean Mechanical Science, 2023
In this study, numerical analysis of the fuselage of a rotary wing unmanned aerial vehicle was conducted. A fuselage that is resistant to the loads on the fuselage and has maximum lightness has been designed.
Metin Uzun   +3 more
doaj   +1 more source

Waste analysis of fuselage assembly in panelization group of the 117th NC212i aircraft

open access: yesJurnal Sistem dan Manajemen Industri, 2020
Dirgantara Indonesia (PTDI) is the single source producer of the NC212i Aircraft. Almost every Aircraft is delivered to the customer over the deadline date. The existence of waste is believed to be one of causing the late delivery.
Frisca Pomalia   +2 more
doaj   +1 more source

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