Integrated Flight Control And Flow Control Using Synthetic Jet Arrays Postprint
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Total Pages | : 23 |
Release | : 2006 |
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This document was developed under a SBIR contract. In this paper, a novel integrated flight control and flow control system using synthetic jet arrays is presented. In the proposed system, a novel active flow control actuator, synthetic-jets-instrumented-wingtips were designed to enhance or replace traditional roll control of a specified airplane. Wind tunnel experiments were conducted to obtain the dynamic model of the synthetic-jets-instrumented-wing-tips. A closed-loop active flow control system was developed to reattach the flow at high angle of attacks. A high fidelity dynamic model for the airplane with the designed synthetic-jets-instrumented-wing-tips was developed based on wind tunnel experiments. A nonlinear integrated flight control and flow control system was developed and tested in simulations. Simulation results showed that the synthetic-jets-instrumented-wing-tips, in conjunction with the elevator and rudder, can effectively control the Cessna's attitude.
Author | : Kevin E. Wu |
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Total Pages | : |
Release | : 2003 |
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Author | : Marcus Ciuryla |
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Total Pages | : 34 |
Release | : 2006 |
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Author | : Catalin Nae |
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Total Pages | : |
Release | : 2000 |
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Author | : Pearl Haiyan Fung |
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Total Pages | : 186 |
Release | : 2001 |
Genre | : Vehicles, Remotely piloted |
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Author | : Sarah Jo Haack |
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Total Pages | : |
Release | : 2007 |
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Author | : Matteo Chiatto |
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Total Pages | : 184 |
Release | : 2017 |
Genre | : Technology & Engineering |
ISBN | : 9788892668829 |
Author | : Preetham P. Rao |
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Total Pages | : 122 |
Release | : 2000 |
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Author | : Dipankar Deb |
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Total Pages | : 334 |
Release | : 2008 |
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ISBN | : 9780549599388 |
While new actuation technologies promise to revolutionize modern control systems applications, effective compensation of new actuators is crucial for realizing such revolutions. One type of such actuators are the synthetic jet actuators which are being currently studied for a next generation of aircraft control systems. In this dissertation, an adaptive feedback control system is designed and analyzed for flight control of linear and nonlinear aircraft models using synthetic jet actuators. The novel features of this work are a new characterization of synthetic jet actuator nonlinearities over a wide range of angles of attack, a new adaptive compensation scheme for such nonlinearities, and a new systematic framework for feedback control of aircraft dynamics with synthetic jet actuators. Characteristics of synthetic jet actuators are nonlinear, and they change significantly with angle of attack when being applied to aircraft motion control. To effectively compensate such nonlinearities, an adaptive inversion-based compensation scheme needs to be designed with an augmented inverse function. Such an adaptive inverse is developed using adaptive approximation to handle the uncertainties of the actuator nonlinearities. A nonlinear state feedback control law is combined with the adaptive inverse compensator for a benchmark aircraft system with synthetic jet actuation signals. Related design issues are addressed for such an innovative actuation technology for aircraft, with stability analysis and simulation results for system demonstration.
Author | : Fang-Jenq Chen |
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Total Pages | : |
Release | : 2000 |
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