Results 11 to 20 of about 511 (182)
Aeroelastic stability of idling wind turbines [PDF]
Wind Energy Science, 2017 Wind turbine rotors in idling operation mode can experience high angles of attack within the post-stall region that are capable of triggering stall-induced vibrations.
K. Wang, V. A. Riziotis, S. G. Voutsinas
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On Dynamic Stability of a Nonlinear Aeroelastic System
Известия Иркутского государственного университета: Серия "Математика", 2018 A nonlinear mathematical model of a device related to vibratory technology is considered. The device is intended for the intensification of technological processes, for example, the mixing process. The action of such devices is based on the vibrations of
P. A. Velmisov, A. V. Ankilov
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Pseudospectral Continuation for Aeroelastic Stability Analysis [PDF]
Journal of Vibration and Acoustics, 2022 AbstractThis technical note is concerned with aeroelastic flutter problems: the analysis of aeroelastic systems undergoing airspeed-dependent dynamic instability. Existing continuation methods for parametric stability analysis are based on marching along an airspeed parameter until the flutter point is found—an approach that may waste computational ...
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Helicopter Blade Stability Analysis Using Aeroelastic Frequency Response Functions
Journal 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
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A Modal Interpretation for Aeroelastic Stability Enhancement of Mistuned Bladed Disks
Aerospace, 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
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Investigation of Stall Flutter Based on Peters-ONERA Aerodynamic Model [PDF]
Xibei 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.
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Aeroelastic Response of Spinning Projectiles with Large Slenderness Ratio at Supersonic Speed
Aerospace, 2023 Obvious aeroelastic deformation occurs in spinning projectiles with large slenderness ratio, which seriously affects flight stability and maneuverability.
Qi Liu +3 more
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Maneuverable unmanned aerial vehicle "rudder - drive” system design for aeroelastic stability
Научный 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
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UHBR Open-Test-Case Fan ECL5/CATANA
International Journal of Turbomachinery, Propulsion and Power, 2022 The application of composite fans enables disruptive design possibilities but increases sensitivity to multi-physical resonance between aerodynamic, structure dynamic and acoustic phenomena.
Valdo Pagès +6 more
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Research on the Motion Characteristics of Longitudinal Second Fold Wings [PDF]
Hangkong 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
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