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Computational study on aerodynamically coupled piezoelectric harvesters
(Sage Publications Ltd, 2020-08)
In this work, the authors present a two-dimensional computational model for predicting the aeroelastic response as well as the output power of vertically arranged harvesters by taking into account all aerodynamic interactions. ...
PHENOMENA AND BIFURCATION ANALYSIS OF AN AEROELASTIC SYSTEM WITH IMPACT EFFECTS
(Amer Soc Mechanical Engineers, 2014-01-01)
Impacts can happen in real aircraft movable surfaces, such as ailerons, flaps, rudder, elevators, trim tabs among others secondary control surfaces leading to complex, dangerous and unpredictable transitions. In a real ...
Airfoil control surface discontinuous nonlinearity experimental assessment and numerical model validation
(2016-04-01)
A variety of dynamic behaviors that may be encountered in aeroelastic systems with discontinuous nonlinearities has motivated investigations that may support future applications in flight controls design, flutter prediction, ...
Control-Surface Structural Nonlinearities in Aeroelasticity: A State of the Art Review
(Amer Inst Aeronautics Astronautics, 2022-02-16)
This paper presents a review and assessment of more than six decades of research in aeroelastic stability, including control-surface nonlinearities. The work covers free play, friction, cubic stiffness, and an actuator in ...
Fluid–structure interaction study of the start-up of a rocket engine nozzle.
(Pergamon-elsevier Science Ltd, 2010-04)
The aim of this paper is to analyze the aeroelastic processes developed during the starting phase of a rocket engine via a coupling fluid/structure code. This analysis gives a better understanding of the behavior of the ...
Fluid-structure interaction study of the start-up of a rocket engine nozzle
(Elsevier, 2010-08)
The aim of this paper is to analyze the aeroelastic processes developed during the starting phase of a rocket engine via a coupling fluid/structure code. This analysis gives a better understanding of the behavior of the ...
Influence of friction and asymmetric freeplay on the limit cycle oscillation in aeroelastic system: An extended Henon's technique to temporal integration
(Elsevier B.V., 2020-07-01)
Nonlinear effects such as friction and freeplay on the control surfaces can affect aeroelastic dynamics during flight. In particular, these nonlinearities can induce limit cycle oscillations (LCO), changing the system ...
Reviewing the art of modeling 3D aeroelastic behavior of cable-stayed bridges
(2015-06-21)
The development of an optimized structural design and the calculation of dynamic internal forces in the complete structure of a cable-stayed bridge under wind action is properly carried out with a theoretical-computational ...
Frequency domain unsteady transonic aerodynamics for flutter and limit cycle oscillation prediction
(Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM, 2010)
The purpose of this study was to develop new approaches for predicting transonic flutter and limit cycle oscillations (LCO) using computational methods. The TSD equation is separated into the in-phase and out-of-phase ...
Reduced order model based on machine learning with sindy autoencoders
(Universidade Federal de UberlândiaBrasilEngenharia Aeronáutica, 2022)