Results 41 to 50 of about 11,119 (215)
Aircraft configurations with propellers have been drawing more attention in recent times, partly due to new propulsion concepts based on hydrogen fuel cells and electric motors.
Christopher Koch +4 more
doaj +1 more source
Limit cycle oscillation prediction based on Finite Element-Modal approach [PDF]
The central theme of this work was to analyze high aspect ratio structure having structural nonlinearity in low subsonic flow and to model nonlinear stiffness by finite element-modal approach.
Kamran Ahmad, Shigang Wu, Hammad Rahman
doaj +1 more source
Non‐Linear Reduced Order Modelling of Transonic Potential Flows for Fast Aerodynamic Analysis
ABSTRACT This work presents a physics‐based reduced order modelling (ROM) framework for the efficient simulation of steady transonic potential flows around aerodynamic configurations. The approach leverages proper orthogonal decomposition and a least‐squares Petrov‐Galerkin (LSPG) projection to construct intrusive ROMs for the full potential equation ...
M. Zuñiga +3 more
wiley +1 more source
ABSTRACT Meeting the rising demand for renewable energy requires innovative solutions to enhance wind power extraction, particularly given demographic and geographic constraints on wind farm deployment. Active high‐lift devices, such as the Active Fluid Gurney Flap (AFGF), offer a promising approach that can dynamically modify aerodynamic performance ...
Mario Lucas, Jorge Saavedra
wiley +1 more source
MATHEMATICAL MODELING IN NON-LINEAR AEROELASTICITY PROBLEMS
The modern aircraft aeroelasticity problems solving are considered. Mathematical models of aeroelasticity joined by non-linear vortex methods of numerical aerodynamics are described for different objects.
V. I. Morozov, V. V. Ovchinnikov
doaj
Review of Research on Reinforced Concrete Shell Structure Produced Using an Inflated Form
Reinforced concrete shell structures produced using an inflated form are widely used in large‐span thin‐shell spatial structures. Unlike the construction technology of traditional concrete building structures, this method involves prefabricating the membrane material into a designed shape as the construction framework.
Xi Mao +7 more
wiley +1 more source
Continuation Methods for Nonlinear Flutter
Continuation methods are presented that are capable of treating frequency domain flutter equations, including multiple nonlinearities represented by describing functions.
Edward E. Meyer
doaj +1 more source
A Reinforcement Learning–Controlled Novel Mode‐Switching Hybrid Mass Damper on a Real Tower
This work proposes a novel passive, semiactive and active mode‐switching hybrid mass damper (MSHMD) solution for the control of an actual high‐rise tower. For the mode‐switching control of the considered building system, a reinforcement learning algorithm, Deep Q‐Network (DQN), was implemented.
Lefteris Koutsoloukas +3 more
wiley +1 more source
Simulated pilot-in-the-loop testing of handling qualities of the flexible wing aircraft
This article aims to indicate the differences between rigid and flexible wing aircraft flying (FQ) and handling (HQ) qualities. The Simulation Framework for Flexible Aircraft was used to provide a generic cockpit environment and a piloted mathematical ...
Vilius Portapas, Alastair Cooke
doaj +1 more source
Experimental Seismic Response Assessment of Tall Buildings With Large Mass Damping
ABSTRACT This paper describes an experimental investigation into the seismic performance of a novel integrated damping system. The proposed damping concept mobilises a portion of the building's own mass to generate damping from its differential motion relative to the lateral load‐resisting system.
Miguel Martinez‐Paneda +3 more
wiley +1 more source

