Parameter Estimation Of Actuators For Benchmark Active Control Technology Bact Wind Tunnel Model With Analysis Of Wear And Aerodynamic Loading Effects
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Parameter Estimation Of Actuators For Benchmark Active Control Technology Bact Wind Tunnel Model With Analysis Of Wear And Aerodynamic Loading Effects
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Author : Martin R. Waszak
language : en
Publisher:
Release Date : 1998
Parameter Estimation Of Actuators For Benchmark Active Control Technology Bact Wind Tunnel Model With Analysis Of Wear And Aerodynamic Loading Effects written by Martin R. Waszak and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Actuators categories.
Modeling The Benchmark Active Control Technology Wind Tunnel Model For Active Control Design Applications
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Author : Martin R. Waszak
language : en
Publisher:
Release Date : 1998
Modeling The Benchmark Active Control Technology Wind Tunnel Model For Active Control Design Applications written by Martin R. Waszak and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Aeroelasticity categories.
This report describes the formulation of a model of the dynamic behavior of the Benchmark Active Controls Technology (BACT) wind tunnel for active control design and analysis applications. The model is formed by combining the equations of motion for the BACT wind tunnel model with actuator models and a model of wind tunnel turbulence. The primary focus of this report is the development of the equations of motion from first principles by using Lagrange's equations and the principle of virtual work. A numerical form of the model is generated by making use of parameters obtained from both experiment and analysis. Comparisons between experimental and analytical data obtained from the numerical model show excellent agreement and suggest that simple coefficient-based aerodynamics are sufficient to accurately characterize the aeroelastic response of the BACT wind tunnel model. The equations of motion developed herein have been used to aid in the design and analysis of a number of flutter suppresion controllers that have been successfully implemented.
Linear Parameter Varying Gain Scheduled Control Of Aerospace Systems
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Author : Jeffrey Michael Barker
language : en
Publisher:
Release Date : 1999
Linear Parameter Varying Gain Scheduled Control Of Aerospace Systems written by Jeffrey Michael Barker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.
International Aerospace Abstracts
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Author :
language : en
Publisher:
Release Date : 1996
International Aerospace Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Aeronautics categories.
Nasa Langley Scientific And Technical Information Output 1998
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Author :
language : en
Publisher:
Release Date : 1999
Nasa Langley Scientific And Technical Information Output 1998 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.
Monthly Catalog Of United States Government Publications
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Author :
language : en
Publisher:
Release Date : 1999
Monthly Catalog Of United States Government Publications written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Government publications categories.
Smart Rotor Modeling
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Author : Leonardo Bergami
language : en
Publisher: Springer
Release Date : 2014-05-30
Smart Rotor Modeling written by Leonardo Bergami and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-05-30 with Technology & Engineering categories.
A smart rotor is a wind turbine rotor that, through a combination of sensors, control units and actuators actively reduces the variation of the aerodynamic loads it has to withstand. Smart rotors feature promising load alleviation potential and might provide the technological breakthrough required by the next generation of large wind turbine rotors. The book presents the aero-servo-elastic model of a smart rotor with Adaptive Trailing Edge Flaps for active load alleviation and provides an insight on the rotor aerodynamic, structural and control modeling. A novel model for the unsteady aerodynamics of an air foil section with flap is presented and coupled with a multi-body structural representation. A smart rotor configuration is proposed, where the Adaptive Trailing Edge Flaps extend along the outer 20 % of the blade span. Linear Quadratic and Model Predictive algorithms are formulated to control the flap deflection. The potential of the smart rotor is finally confirmed by simulations in a turbulent wind field. A significant reduction of the fatigue loads on the blades is reported: the flaps, which cover no more than 1.5 % of the blade surface, reduce the fatigue load by 15 %; a combination of flap and individual pitch control allows for fatigue reductions up to 30 %.
Adaptive Compensation Of Nonlinear Actuators For Flight Control Applications
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Author : Dipankar Deb
language : en
Publisher: Springer Nature
Release Date : 2021-07-22
Adaptive Compensation Of Nonlinear Actuators For Flight Control Applications written by Dipankar Deb and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-07-22 with Technology & Engineering categories.
This book provides a basic understanding of adaptive control and its applications in Flight control. It discusses the designing of an adaptive feedback control system and analyzes this for flight control of linear and nonlinear aircraft models using synthetic jet actuators. It also discusses control methodologies and the application of control techniques which will help practicing flight control and active flow control researchers. It also covers modelling and control designs which will also benefit researchers from the background of fluid mechanics and health management of actuation systems. The unique feature of this book is characterization of synthetic jet actuator nonlinearities over a wide range of angles of attack, an adaptive compensation scheme for such nonlinearities, and a systematic framework for feedback control of aircraft dynamics with synthetic jet actuators.
Active Flow Control
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Author : Rudibert King
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-08-29
Active Flow Control written by Rudibert King and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-08-29 with Technology & Engineering categories.
This book contains contributions presented at the Active Flow Control 2006 conference, held September 2006, at the Technische Universität Berlin, Germany. It contains a well balanced combination of theoretical and experimental state-of-the-art results of Active Flow Control. Coverage combines new developments in actuator technology, sensing, robust and optimal open- and closed-loop control and model reduction for control.
Fourth Nasa Workshop On Computational Control Of Flexible Aerospace Systems Part 2
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Author :
language : en
Publisher:
Release Date : 1991
Fourth Nasa Workshop On Computational Control Of Flexible Aerospace Systems Part 2 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.