Results 11 to 20 of about 13,380 (209)

Aeroelastic Stability Analysis of Electric Aircraft Wings with Distributed Electric Propulsors

open access: yesAerospace, 2021
In this paper, the effect of distributed electric propulsion on the aeroelastic stability of an electric aircraft wing was investigated. All the electric propulsors, which are of different properties, are attached to the wing of the aircraft in different
Mohammadreza Amoozgar   +5 more
doaj   +1 more source

Helicopter Blade Stability Analysis Using Aeroelastic Frequency Response Functions

open access: yesJournal of Applied and Computational Mechanics, 2015
In the present paper, the aeroelastic stability of helicopter rotor blade is determined using Aeroelastic Frequency Response Function. The aeroelastic model of blade is obtained by combining Dowell - Hodges beam model with Loewy unsteady aerodynamic ...
Mostafa Mohagheghi   +2 more
doaj   +1 more source

A Modal Interpretation for Aeroelastic Stability Enhancement of Mistuned Bladed Disks

open access: yesAerospace, 2022
Understanding the mechanism of the aeroelastic stability improvement induced by mistuning is essential for the design of bladed disks in aero-engines. In this paper, a quantitative interpretation is given. It starts by projecting the mistuned aeroelastic
Xin Liu, Yu Fan, Lin Li, Xiaoping Yu
doaj   +1 more source

Aeroelastic stability analysis using linear matrix inequalities [PDF]

open access: yesJournal of the Brazilian Society of Mechanical Sciences and Engineering, 2012
The present work describes an alternative methodology for identification of aeroelastic stability in a range of varying parameters. Analysis is performed in time domain based on Lyapunov stability and solved by convex optimization algorithms. The theory is outlined and simulations are carried out on a benchmark system to illustrate the method.
Bueno, Douglas D.   +3 more
openaire   +5 more sources

Influence of structure parameters on aeroelastic stability for labyrinth seal based on energy method

open access: yesPropulsion and Power Research, 2018
Numerical analysis of turbomachinery based on energy method is used to predict the aeroelastic stability of the straight-through labyrinth seal by solving aerodynamic work and damping.
Nengmao Wang, Yanrong Wang, Aimei Tian
doaj   +1 more source

Investigation of Stall Flutter Based on Peters-ONERA Aerodynamic Model [PDF]

open access: yesXibei Gongye Daxue Xuebao, 2018
The Peters model is used to simulate the linear aerodynamic force and ONERA stall model is used to simulate the nonlinear aerodynamic force. The state-space equation of the aeroelastic system is established by coupling the structural equation.

doaj   +1 more source

Aeroelastic Response of Spinning Projectiles with Large Slenderness Ratio at Supersonic Speed

open access: yesAerospace, 2023
Obvious aeroelastic deformation occurs in spinning projectiles with large slenderness ratio, which seriously affects flight stability and maneuverability.
Qi Liu   +3 more
doaj   +1 more source

A numerical investigation into the aerodynamic characteristics and aeroelastic stability of a footbridge [PDF]

open access: yes, 2009
The results of a numerical investigation into the aerodynamic characteristics and aeroelastic stability of a proposed footbridge across a highway in the north of England are presented.
Taylor, I.J., Vezza, M.
core   +1 more source

Maneuverable unmanned aerial vehicle "rudder - drive” system design for aeroelastic stability

open access: yesНаучный вестник МГТУ ГА, 2019
The article considers the technique of designing a "rudder - drive" system aimed at ensuring safety from flutter of the flight control that is the aerodynamic rudder and the "rudder-drive" system stability. The rudder flutter represents a dynamic form of
V. N. Akimov   +3 more
doaj   +1 more source

Research on the Motion Characteristics of Longitudinal Second Fold Wings [PDF]

open access: yesHangkong bingqi, 2023
Folding wings are flight device structural components that require small space for ammunition seeking, facilitating the storage and transportation of launch boxes (barrels), greatly saving ammunition storage and transportation space, and increasing the ...
Lü Tiegang, Zhang Xiaowen, Li Yongwei, Zhang Yu
doaj   +1 more source

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