Nonlinear Aeroelastic Oscillations in the Wall of a Flat Channel Filled with Viscous Gas and Resting on a Vibrating Foundation by V. S. Popov, A. A. Popova

Subjects: “…nonlinear aeroelastic oscillation…”
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Aeroelastic Stability Analysis of a Laminated Composite Sandwich Panel With a Magnetorheological Fluid Core Under Yawed Supersonic Airflow by Jian Zhou, Liang Li, Minglong Xu

“…In this study, we conducted an aeroelastic stability analysis of a laminated composite magnetorheological fluid (MRF) sandwich panel in supersonic airflow for varying yawed angles. …”
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Three-Dimensional Aeroelastic Investigation of a Novel Convex Bladed H-Darrieus Wind Turbine Based on a Two-Way Coupled Computational Fluid Dynamics and Finite Element Analysis Approach by Tarek Elbeji, Wael Ben Amira, Khaled Souaissa, Moncef Ghiss, Hatem Bentaher, Nabil Ben Fredj

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Application of Deep Learning to Identify Flutter Flight Testing Signals Parameters and Analysis of Real F-18 Flutter Flight Test Data by Sami Abou-Kebeh, Roberto Gil-Pita, Manuel Rosa-Zurera

Subjects: “…aeroelastic flutter…”
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Comparison of Frequency Domain and Time-Domain Methods for Aeromechanical Analysis by M. T. Rahmati

“…Unsteady flow around an oscillating plate cascade and that through a single compressor rotor subject to vibration have been computationally studied, aimed at examining the predictive ability of two low fidelity frequency methods compared with a high fidelity time-domain solution method for aeroelasticity. The computational solutions demonstrate the capabilities of the frequency domain methods compared with the nonlinear time-domain solution method in capturing small perturbations in the unsteady flow. …”
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Aerodynamic Optimization Based on Continuous Adjoint Method for a Flexible Wing by Zhaoke Xu, Jian Xia

“…A comparison between the results from aerostructural analysis of rigid optimization and flexible optimization is shown here to demonstrate that it is necessary to include the effect of aeroelasticity in the optimization design of a wing.…”
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Aerodynamic Shape Design and Validation of an Advanced High-Lift Device for a Regional Aircraft with Morphing Droop Nose by Alessandro De Gaspari, Frédéric Moens

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Research on Feature Extracted Method for Flutter Test Based on EMD and CNN by Hua Zheng, Zhenglong Wu, Shiqiang Duan, Jiangtao Zhou

“…Due to the inevitable deviations between the results of theoretical calculations and physical experiments, flutter tests and flutter signal analysis often play significant roles in designing the aeroelasticity of a new aircraft. The measured structural response from aeroelastic models in both wind tunnel tests and real fight flutter tests contain an abundance of structural information, but traditional methods tend to have limited ability to extract features of concern. …”
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Operational Pitch Actuation Dynamics for Offshore Wind Turbines Ranging from 5 to 50 MW by Michael Jeong, Eric Loth, Chris Qin, Mandar Phadnis, Manuel Pusch, Lucy Pao

“…The developed model considers blade pitch response, pitching moments, pitch system dynamics, and blade aeroelasticity. The model is applied using an integrated wind turbine code used to simulate the turbine response of a 25‐MW offshore reference turbine with advanced pitch control under standardized turbulent wind conditions. …”
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Aeroservoelastic Pitch Control of Stall-Induced Flap/Lag Flutter of Wind Turbine Blade Section by Tingrui Liu

“…The aim of this paper is to analyze aeroelastic stability, especially flutter suppression for aeroelastic instability. …”
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Dynamic Gust Load Analysis for Rotors by Yuting Dai, Linpeng Wang, Chao Yang, Xintan Zhang

“…Based on a large deflection beam theory, an aeroelastic model for isolated helicopter rotors in the time domain is constructed. …”
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Bifurcation Analysis with Aerodynamic-Structure Uncertainties by the Nonintrusive PCE Method by Linpeng Wang, Yuting Dai, Chao Yang

“…An aeroelastic model for airfoil with a third-order stiffness in both pitch and plunge degree of freedom (DOF) and the modified Leishman–Beddoes (LB) model were built and validated. …”
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Derivation of ODEs and Bifurcation Analysis of a Two-DOF Airfoil Subjected to Unsteady Incompressible Flow by H. Alighanbari, S. M. Hashemi

“…The airfoil is supported via a translational and a torsional springs. The aeroelastic integro-differential equations of motion for the airfoil are reformulated into a system of six first-order autonomous ordinary differential equations. …”
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Numerical Investigation of Flapwise-Torsional Vibration Model of a Smart Section Blade with Microtab by Nailu Li, Mark J. Balas, Hua Yang, Wei Jiang, Kaman T. Magar

“…This study presents a method to develop an aeroelastic model of a smart section blade equipped with microtab. …”
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Control of Limit Cycle Oscillation in a Three Degrees of Freedom Airfoil Section Using Fuzzy Takagi-Sugeno Modeling by Douglas Domingues Bueno, Luiz Carlos Sandoval Góes, Paulo José Paupitz Gonçalves

“…It is shown that this approach can compute linear control gain able to stabilize aeroelastic systems with discontinuous nonlinearities.…”
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Optimal Design and Acoustic Assessment of Low-Vibration Rotor Blades by G. Bernardini, E. Piccione, A. Anobile, J. Serafini, M. Gennaretti

“…Blade shape and structural properties are the design parameters to be identified within a binary genetic optimization algorithm under aeroelastic stability constraint. The process exploits an aeroelastic solver that is based on a nonlinear, beam-like model, suited for the analysis of arbitrary curved-elastic-axis blades, with the introduction of a surrogate wake inflow model for the analysis of sectional aerodynamic loads. …”
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Stall Flutter Control of a Smart Blade Section Undergoing Asymmetric Limit Oscillations by Nailu Li, Mark J. Balas, Pourya Nikoueeyan, Hua Yang, Jonathan W. Naughton

“…Stall flutter is an aeroelastic phenomenon resulting in unwanted oscillatory loads on the blade, such as wind turbine blade, helicopter rotor blade, and other flexible wing blades. …”
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Flight Loads Prediction of High Aspect Ratio Wing Aircraft Using Multibody Dynamics by Michele Castellani, Jonathan E. Cooper, Yves Lemmens

“…A framework based on multibody dynamics has been developed for the static and dynamic aeroelastic analyses of flexible high aspect ratio wing aircraft subject to structural geometric nonlinearities. …”
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Receptance-Based Partial Pole Assignment for Asymmetric Systems Using State-Feedback by M. Ghandchi Tehrani, H. Ouyang

“…Examples include friction-induced vibration and aeroelastic flutter. Asymmetric systems are prone to flutter instability as a result of the real parts of some poles becoming positive when certain system parameters vary.…”
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New Method for Analyzing the Flutter Stability of Hingeless Blades with Advanced Geometric Configurations in Hovering by Si-wen Wang, Jing-long Han, Quan-long Chen, Hai-wei Yun, Xiao-mao Chen

“…A new method used to analyze the aeroelastic stability of a helicopter hingeless blade in hovering has been developed, which is especially suitable for a blade with advanced geometric configuration. …”
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