Results 71 to 80 of about 511 (182)

Stability analysis of an aeroelastic system with friction

Chinese Journal of Aeronautics, 2013
AbstractIn this paper, harmonic balance method, exact formulation and numerical simulation method are adopted to study the effects of different friction stiffness on the stability of 1.5 degrees of freedom aeroelastic system. On this basis, the expressions of input energy and dissipated energy are deduced, and the energy method is used to reveal the ...
Tan, Tiancai, Li, Min, Liu, Baihui
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Aeroelastic stability of flight control surfaces with freeplay in degraded mass-balance weights

Авіаційно-космічна техніка та технологія
The subject of this study is the aeroelastic stability of aircraft flight control surfaces caused by the degradation of mass-balance weights. The mass and inertia properties of control surfaces play a key role in flutter prevention and are typically ...
Oleksii Starodub
doaj   +1 more source

Wind Turbine Aeroelastic Modeling: Basics and Cutting Edge Trends

International Journal of Aerospace Engineering, 2017
The interaction of fluid flow and the structure dynamic of the system is a vital subject for machines operating under their coupling. It is not different for wind turbine either, especially as the coupling enhanced for multi-MW turbine with larger and ...
Mesfin Belayneh Ageze, Yefa Hu, Huachun Wu   +2 more
doaj   +1 more source

Passive Aeroelastic Control of a Near-Ground Airfoil with a Nonlinear Vibration Absorber

Aerospace
This study explores the use of a passive control technique to mitigate aeroelastic effects on a wing operating near the ground. An aeroelastic model, based on a typical airfoil section, equipped with a nonlinear tuned vibration absorber (NLTVA), is ...
Kailash Dhital, Benjamin Chouvion
doaj   +1 more source

Analysis of classical flutter in steam turbine blades using reduced order aeroelastic model

MATEC Web of Conferences, 2018
In the present paper classical flutter phenomena in LP steam turbine rotor is studied . A reduced order aeroelastic model (ROAM) with acceptable accuracy and fast execution is developed for this purpose.
Prasad Chandra Shekhar, Pešek Luděk
doaj   +1 more source

MODEL OF STABILITY STUDY OF RUDDER ACTUATOR SYSTEM OF MANEUVERABLE UNMANNED AERIAL VEHICLE

Научный вестник МГТУ ГА, 2016
One of the important problems of the designing of maneuverable unmanned aerial vehicles (UAV) is to ensure aeroelastic stability with automatic control system (ACS).
S. G. Parafes’, D. N. Ivanov, A. S. Oparin   +2 more
doaj  

Geometrical Nonlinear Aeroelastic Stability Analysis of a Composite High-Aspect-Ratio Wing

Shock and Vibration, 2008
A composite high-aspect-ratio wing of a high-altitude long-endurance (HALE) aircraft was modeled with FEM by MSC/NASTRAN, and the nonlinear static equilibrium state is calculated under design load with follower force effect, but without load ...
Chang Chuan Xie, Jia Zhen Leng, Chao Yang   +2 more
doaj   +1 more source

Influence of conductors on the wind-induced stability of transmission tower-line systems

Advances in Wind Engineering
This study examines the influence of conductors on the stability of transmission tower-line systems under wind loading. Numerical simulations utilizing finite element methods were conducted to evaluate and compare the aeroelastic behavior and structural ...
Fubin Chen, Ziqiang Tang, Lianhui Wang, Lanxi Weng, Sen Chen, Weijia Wang, Qiurui Cai, Yi Li   +7 more
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Aeroelastic stability of cylindrical tubes

, 1966
[Nedyalkov Ivan; Nedjalkov I.; Недялков Иван] Russian.
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Numerical and experimental investigation on aeroelasticity of wind turbine blade with biological airfoil and V‑stripe web. [PDF]

Sci Rep
Chen K, Ren K, Zhao P, Su T, Hao Z, Wang Q, Zhao Z.   +6 more
europepmc   +1 more source