Results 31 to 40 of about 517 (182)

Multi-Fidelity Gradient-Based Optimization for High-Dimensional Aeroelastic Configurations

Algorithms, 2022
The simultaneous optimization of aircraft shape and internal structural size for transonic flight is excessively costly. The analysis of the governing physics is expensive, in particular for highly flexible aircraft, and the search for optima using ...
Andrew S. Thelen, Dean E. Bryson, Bret K. Stanford, Philip S. Beran   +3 more
doaj   +1 more source

Encoding Cumulation to Learn Perturbative Nonlinear Oscillatory Dynamics

Advanced Science, Volume 13, Issue 25, 4 May 2026.
Weak nonlinearities critically shape the long term behavior of oscillatory systems but are difficult to identify from data. A data‐driven framework is introduced to infer governing equations of weakly nonlinear oscillators from sparse and noisy observations.
Teng Ma, Ting‐Ting Gao, Wei Cui, Attilio Frangi, Gang Yan, Lin Zhao   +5 more
wiley   +1 more source

Output Feedback Fuzzy Gain Scheduling for MIMO Systems Applied to Flexible Aircraft Control

Aerospace
Previous works by our group evidenced stability problems associated with flight control law design for flexible aircraft regarding gain scheduling.
Guilherme C. Barbosa, Flávio J. Silvestre   +1 more
doaj   +1 more source

Photoelectrochemical Charge Excitation Enhancement by Triboelectric Nanogenerator for High‐Efficiency Self‐Powered Anticorrosion

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 3, May 2026.
The synergy of solar and mechanical energy enables a self‐powered photoelectrochemical cathodic protection system, which enhances carrier separation for efficient and sustainable anticorrosion. Harnessing the synergy of solar and mechanical energy presents a potential strategy for high‐efficiency photoelectrochemical cathodic protection.
Youbo Nan, Xiutong Wang, Xiaofan Zhai, Weijie Fan, Yanan Sun, Hui Zhou, Yanliang Huang   +6 more
wiley   +1 more source

Coupled Fluid–Structure–Acoustic Analysis of Flow‐Induced Noise Control Using an Elastic Baffle in a Micro Channel

Energy Science &Engineering, Volume 14, Issue 5, Page 2571-2582, May 2026.
This research explores how fluid flow, structural movement, and sound interact in an elastic baffle system. Using a numerical approach based on the finite element method, the study analyzes how noise and vibrations change with different baffle configurations. The findings reveal that shortening the baffle by half reduces noise transmission by 9%, while
Tohid Adibi, Seyed Esmail Razavi, Shams Forruque Ahmed, Khashayar Fardnia, Aydin Qheydarpoor, Hammad Alotaibi   +5 more
wiley   +1 more source

High‐speed infrared video analysis of sonations in the scissor‐tailed nightjar Hydropsalis torquata

Journal of Avian Biology, Volume 2026, Issue 3, May 2026.
Many species of nightjar reportedly produce short, impulsive wing sounds during courtship, but the kinematics and physical mechanisms of sound production remain speculative. Using synchronized infrared high‐speed video and audio recordings we describe the mechanism of sound production of a sonation in the nocturnal family Caprimulgidae; the wing ...
Juan Ignacio Areta, Christopher J. Clark
wiley   +1 more source

Feasibility Study of implementing Wake Steering in Floating Wind Farms: Power Gain, Load Estimation and Economic Analysis

Wind Energy, Volume 29, Issue 5, May 2026.
ABSTRACT This paper presents an overview of the CONFLOWS project, a collaborative effort between DNV, Marine Power Systems (MPS) and Durham University. The project investigates the effects of wake steering from aerodynamic, structural and economic modelling perspectives, aiming to provide a comprehensive understanding of its impact on performance and ...
Mohammadreza Mohammadi, Ervin Bossanyi, Matthew Harrison, Michael Ogbeifun, Caitlin McCarthy, John Chapman, Majid Bastankhah, Lars Landberg   +7 more
wiley   +1 more source

Uncertainty quantification of structural blade parameters for the aeroelastic damping of wind turbines: a code-to-code comparison [PDF]

Wind Energy Science
Uncertainty quantification (UQ) is a well-established category of methods to estimate the effect of parameter variations on a quantity of interest based on a solid mathematical foundation.
H. Verdonck, O. Hach, J. D. Polman, O. Schramm, C. Balzani, S. Müller, J. Rieke   +6 more
doaj   +1 more source

An Engineering Model for Static Yawed Wind Turbines Based on Actuator Line Simulations and Symbolic Regression

Wind Energy, Volume 29, Issue 5, May 2026.
ABSTRACT Yaw engineering models are commonly used as add‐ons to the industrial blade element momentum (BEM) framework to improve load and power predictions by accounting for the skewed wake effect. However, existing yaw engineering models show noticeable limitations in accurately predicting the induced velocity distribution across the blade span.
Haoyuan Sun, Andrea Sciacchitano, Wei Yu
wiley   +1 more source

Aeroelastic Characteristics of Rotor Blades of Last Stage of a Powerful Steam Turbine

Journal of Mechanical Engineering, 2023
Blades of powerful steam turbines are subjected to significant unsteady loads, which, in some cases, can lead to the appearance of self-excited oscillations or auto-oscillations.
Liubov V. Kolodiazhna, Yurii A. Bykov
doaj   +1 more source