Results 21 to 30 of about 13,380 (209)
Rotorcraft aeroelastic stability using robust analysis
CEAS Aeronautical Journal, 2013 This paper discusses the impact of different models of aerodynamic loads on rotorcraft-pilot couplings stability using a robust stability analysis approach. The aeroelasticity of the main rotor of a helicopter is formulated using aerodynamic models based on the blade element/momentum theory and boundary element method coupled to a finite element model ...
QUARANTA, GIUSEPPE +6 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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Aeroelastic Stability of Labyrinth Seal with Different Structure Parameters
MATEC Web of Conferences, 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
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Научный вестник МГТУ ГА, 2018 One of the important problems of the designing of maneuverable unmanned aerial vehicles (UAV) is to ensure aeroelastic stability with automatic control system (ACS).
V. N. Akimov +3 more
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Calculation of AGARD Wing 445.6 Flutter Using Navier-Stokes Aerodynamics [PDF]
, 1993 An unsteady, 3D, implicit upwind Euler/Navier-Stokes algorithm is here used to compute the flutter characteristics of Wing 445.6, the AGARD standard aeroelastic configuration for dynamic response, with a view to the discrepancy between Euler ...
Anderson W. K. +21 more
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A Parametric Study on the Aeroelasticity of Flared Hinge Folding Wingtips
Aerospace, 2021 This paper presents a parametric study on the aeroelasticity of cantilever wings equipped with Flared Hinge Folding Wingtips (FHFWTs). The finite element method is utilized to develop a computational, low-fidelity aeroelastic model. The wing structure is
Rafic M. Ajaj +3 more
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Linearization and Analytical Sensitivity of Unsteady Vortex-Lattice Aerodynamics
气体物理, 2023 The unsteady vortex-lattice method (UVLM) provides a high-efficient, medium-fidelity way to capture large deformations and free wake effects of flexible wings. It has been favored in research on the stability analysis of flexible wings. It is possible to
Jin-chi CHEN, Yan-xin HUANG
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Flutter analysis of tapered composite fins: Analysis and experiment [PDF]
FME Transactions, 2022 In the present work, the aeroelastic stability of tapered composite plates is investigated. Existing flutter models, based on the typical section approach, are reviewed for quasi-steady and unsteady low Mach number axial flows and modified for the thin ...
Dinulović Mirko +3 more
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International Journal of Turbomachinery, Propulsion and Power, 2021 This study investigates the aerodynamic and aeroelastic characteristics of a transonic axial compressor, focusing on blade count reduced rotor behavior.
Daniel Franke +5 more
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Aeroelastic stability analysis using stochastic structural modifications [PDF]
Journal of Sound and Vibration, 2020 Abstract An experimental-based approach to flutter speed uncertainty quantification in aeroelastic systems is developed. The proposed technique considers uncertainty from a post-manufacture perspective. Variability due to manufacturing tolerances, damage and degradation is formulated as a stochastic structural modification to a single set of measured
Adamson, LJ, Fichera, S, Mottershead, JE
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