Results 91 to 100 of about 11,252 (231)

Current status of computational methods for transonic unsteady aerodynamics and aeroelastic applications [PDF]

The current status of computational methods for unsteady aerodynamics and aeroelasticity is reviewed. The key features of challenging aeroelastic applications are discussed in terms of the flowfield state: low-angle high speed flows and high-angle vortex-
Edwards, John W., Malone, John B.
core   +1 more source

A Study on the Surrogate-Based Optimization of Flexible Wings Considering a Flutter Constraint

Applied Sciences
Accounting for aeroelastic phenomena, such as flutter, in the conceptual design phase is becoming more important as the trend toward increasing the wing aspect ratio forges ahead. However, this task is computationally expensive, especially when utilizing
Alessandra Lunghitano, Frederico Afonso, Afzal Suleman   +2 more
doaj   +1 more source

Aeromechanical optimization of first row compressor test stand blades using a hybrid machine learning model of genetic algorithm, artificial neural networks and design of experiments

Engineering Applications of Computational Fluid Mechanics, 2019
In this paper, optimization of the first blade of a new test rig is pursued using a hybrid model comprising the genetic algorithm, artificial neural networks and design of experiments.
Mohammad Ghalandari, Alireza Ziamolki, Amir Mosavi, Shahaboddin Shamshirband, Kwok-Wing Chau, Saeed Bornassi   +5 more
doaj   +1 more source

High-Fidelity Aeroelastic Analysis of a Wind Turbine Using a Nonlinear Frequency-Domain Solution Method

Energies
This paper investigates the aeroelastic behaviour of a full wind turbine model with realistic blade vibration amplitude (9% span) using a nonlinear frequency-domain solution method.
Shine Win Naung, Mohammad Rahmati, Htet Shine   +2 more
doaj   +1 more source

Experimental aeroelasticity history, status and future in brief [PDF]

NASA conducts wind tunnel experiments to determine and understand the aeroelastic characteristics of new and advanced flight vehicles, including fixed-wing, rotary-wing and space-launch configurations.
Ricketts, Rodney H.
core   +1 more source

Dynamic similarity criteria for simple cases of buildings and structures aerodynamics

Budownictwo i Architektura
The work concerns dynamic similarity criteria of various phenomena occurring in hydraulics and fluid dynamics originally derived from ratios of forces and forces moments affecting these phenomena. The base of dynamic similarity criteria formulations and
Andrzej Flaga, Łukasz Flaga
doaj   +1 more source

Optimum structural design with static aeroelastic constraints [PDF]

The static aeroelastic performance characteristics, divergence velocity, control effectiveness and lift effectiveness are considered in obtaining an optimum weight structure. A typical swept wing structure is used with upper and lower skins, spar and rib
Bowman, Keith B, Eastep, F. E., Grandhi, Ramana V.   +2 more
core   +1 more source

A Time-Domain Calculation Method for Gust Aerodynamics in Flight Simulation

Aerospace
Gusts have a significant impact on aircraft and need to be analyzed through flight simulations. The solution for time-domain gust aerodynamic forces stands as a pivotal stage in this process. With the increasing demand for flight simulations within gusty
Zexuan Yang, Chao Yang, Daxin Wen, Wenbo Zhou, Zhigang Wu   +4 more
doaj   +1 more source

Modeling and analysis of high aspect ratio wing considering random structural parameters. [PDF]

Sci Rep, 2021
Fu B, Yang Y, Qi H, Xu J, Wang S.
europepmc   +1 more source

Experimental study of the flight envelope and research of safety requirements for hang-gliders [PDF]

The flight mechanic computations were computed, providing both the flight envelopes with all sorts of limits and a fairly precise idea of the influence of several parameters, such as pilot's weight, wing settings, aeroelasticity, etc...
Laburthe, C.
core   +1 more source