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Control Law Design And Validation For A Helicopter In Flight Simulator
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Book Synopsis Control Law Design and Validation for a Helicopter In-flight Simulator by : Brian T. Fujizawa
Download or read book Control Law Design and Validation for a Helicopter In-flight Simulator written by Brian T. Fujizawa and published by . This book was released on 2010 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this thesis was to build on the previous work to design and validate control laws which provide RASCAL (Rotorcraft Aircrew Systems Concepts Airborne Laboratory), a JUH-60A Black Hawk helicopter based at Moffett Field, California, with in-flight simulation capabilities. This consisted of first selecting the control law architecture, developing a feedback controller, and developing a high-fidelity linear analysis model of RASCAL including the bare airframe dynamics, mixer matrices and actuator models, computational delays, and sensor and filter models. The control system was optimized using requirements from several performance standards and custom specifications. The optimized system was then tested, first in a non-linear simulation environment, then in a hardware-in-the-loop simulator. Frequency response identification using frequency sweep data from both simulations was used to ensure that the system designed around a linear model would work in non-linear environments. Finally, pilots flew the control laws in the hardware-in-the-loop simulator for a qualitative evaluation of the control laws.
Book Synopsis Preliminary Control Law Design for a Helicopter In-flight Simulator by : James Paul Krieger
Download or read book Preliminary Control Law Design for a Helicopter In-flight Simulator written by James Paul Krieger and published by . This book was released on 2007 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis F-14 Flight Control Law Design, Verification, and Validation Using Computer Aided Engineering Tools by :
Download or read book F-14 Flight Control Law Design, Verification, and Validation Using Computer Aided Engineering Tools written by and published by . This book was released on 1995 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The analog flight control computers (FCC's) in the F-14A/D airplane are currently being replaced with digital FCC's. This FCC upgrade will also include significant flight control law modifications which are designed to improve the aircraft's flying qualities throughout the operating envelope. Teamed with engineers from Grumman Aerospace, the NAWCAD was tasked as the lead activity in the total system development, integration, and testing of the new digital flight control system. These tasks included the development of improved control laws for both the up and away maneuvering flight envelope as well as the takeoff and landing configurations. These control laws engineering tools that were available on the main simulation computer system as well as desk top computer based systems. This paper specifically addresses the methods in use for the F-14 Digital Hight Control System (DFCS) program, however many of the methods used in this effort are currently being applied to the F-18E/F, V-22 and EA-6B programs.
Book Synopsis CONDUIT: A New Multidisciplinary Integration Environment for Flight Control Development by :
Download or read book CONDUIT: A New Multidisciplinary Integration Environment for Flight Control Development written by and published by . This book was released on 1997 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: A state-of-the-art computational facility for aircraft flight control design, evaluation, and integration called CONDUIT (Control Designer's Unified Interface) has been developed. This paper describes the CONDUIT tool and case study applications to complex rotary- and fixed- wing fly-by-wire flight control problems. Control system analysis and design optimization methods are presented, including definition of design specifications and system models within CONDUIT, and the multi-objective function optimization (CONSOL-OPTCAD) used to tune the selected design parameters. Design examples are based on flight test programs for which extensive data are available for validation. CONDUIT is used to analyze baseline control laws against pertinent military handling qualities and control system specifications. In both case studies, CONDUIT successfully exploits trade-offs between forward loop and feedback dynamics to significantly improve the expected handling qualities and minimize the required actuator authority. The CONDUIT system provides a new environment for integrated control system analysis and design, and has potential for significantly reducing the time and cost of control system flight test optimization.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Higher Order Dynamics on Helicopter Flight Control Law Design by : Steven J. Ingle
Download or read book The Effects of Higher Order Dynamics on Helicopter Flight Control Law Design written by Steven J. Ingle and published by . This book was released on 1991 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Safety of Computer Control Systems 1990 (SAFECOMP'90) by : B.K. Daniels
Download or read book Safety of Computer Control Systems 1990 (SAFECOMP'90) written by B.K. Daniels and published by Elsevier. This book was released on 2014-06-28 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: The market for safe, secure and reliable computer systems is expanding continuously and these Proceedings provide an opportunity to review the growth during the last decade and identify skills and technologies required for continued development in the area. The papers cover the experiences gained from specifying, creating, operating, and licensing computers in safety, security and reliability related applications. There are reviews of guidelines and industrial applications, with a section covering methods and tools used in designing, documenting, analysing, testing and assessing systems dependent on the SAFECOMP factors.
Book Synopsis Linear and Nonlinear Control of Small-Scale Unmanned Helicopters by : Ioannis A. Raptis
Download or read book Linear and Nonlinear Control of Small-Scale Unmanned Helicopters written by Ioannis A. Raptis and published by Springer Science & Business Media. This book was released on 2010-09-28 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: There has been significant interest for designing flight controllers for small-scale unmanned helicopters. Such helicopters preserve all the physical attributes of their full-scale counterparts, being at the same time more agile and dexterous. This book presents a comprehensive and well justified analysis for designing flight controllers for small-scale unmanned helicopters guarantying flight stability and tracking accuracy. The design of the flight controller is a critical and integral part for developing an autonomous helicopter platform. Helicopters are underactuated, highly nonlinear systems with significant dynamic coupling that needs to be considered and accounted for during controller design and implementation. Most reliable mathematical tools for analysis of control systems relate to modern control theory. Modern control techniques are model-based since the controller architecture depends on the dynamic representation of the system to be controlled. Therefore, the flight controller design problem is tightly connected with the helicopter modeling. This book provides a step-by-step methodology for designing, evaluating and implementing efficient flight controllers for small-scale helicopters. Design issues that are analytically covered include: • An illustrative presentation of both linear and nonlinear models of ordinary differential equations representing the helicopter dynamics. A detailed presentation of the helicopter equations of motion is given for the derivation of both model types. In addition, an insightful presentation of the main rotor's mechanism, aerodynamics and dynamics is also provided. Both model types are of low complexity, physically meaningful and capable of encapsulating the dynamic behavior of a large class of small-scale helicopters. • An illustrative and rigorous derivation of mathematical control algorithms based on both the linear and nonlinear representation of the helicopter dynamics. Flight controller designs guarantee that the tracking objectives of the helicopter's inertial position (or velocity) and heading are achieved. Each controller is carefully constructed by considering the small-scale helicopter's physical flight capabilities. Concepts of advanced stability analysis are used to improve the efficiency and reduce the complexity of the flight control system. Controller designs are derived in both continuous time and discrete time covering discretization issues, which emerge from the implementation of the control algorithm using microprocessors. • Presentation of the most powerful, practical and efficient methods for extracting the helicopter model parameters based on input/output responses, collected by the measurement instruments. This topic is of particular importance for real-life implementation of the control algorithms. This book is suitable for students and researches interested in the development and the mathematical derivation of flight controllers for small-scale helicopters. Background knowledge in modern control is required.
Book Synopsis Advances In Aircraft Flight Control by : MB Tischler
Download or read book Advances In Aircraft Flight Control written by MB Tischler and published by Routledge. This book was released on 2018-04-24 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a single comprehensive resource that reviews many of the current aircraft flight control programmes from the perspective of experienced practitioners directly involved in the projects. Each chapter discusses a specific aircraft flight programme covering the control system design considerations, control law architecture, simulation and analysis, flight test optimization and handling qualities evaluations. The programmes described have widely exploited modern interdisciplinary tools and techniques and the discussions include extensive flight test results. Many important `lessons learned' are included from the experience gained when design methods and requirements were tested and optimized in actual flight demonstration.
Download or read book Aeronautical Engineering written by and published by . This book was released on 1971 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA)
Book Synopsis Flight Mechanics Modeling and Analysis by : Jitendra R. Raol
Download or read book Flight Mechanics Modeling and Analysis written by Jitendra R. Raol and published by CRC Press. This book was released on 2023-03-31 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flight Mechanics Modeling and Analysis comprehensively covers flight mechanics and flight dynamics using a systems approach. This book focuses on applied mathematics and control theory in its discussion of flight mechanics to build a strong foundation for solving design and control problems in the areas of flight simulation and flight data analysis. The second edition has been expanded to include two new chapters and coverage of aeroservoelastic topics and engineering mechanics, presenting more concepts of flight control and aircraft parameter estimation. This book is intended for senior undergraduate aerospace students taking Aircraft Mechanics, Flight Dynamics & Controls, and Flight Mechanics courses. It will also be of interest to research students and R&D project-scientists of the same disciplines. Including end-of-chapter exercises and illustrative examples with a MATLAB®-based approach, this book also includes a Solutions Manual and Figure Slides for adopting instructors. Features: • Covers flight mechanics, flight simulation, flight testing, flight control, and aeroservoelasticity. • Features artificial neural network- and fuzzy logic-based aspects in modeling and analysis of flight mechanics systems: aircraft parameter estimation and reconfiguration of control. • Focuses on a systems-based approach. • Includes two new chapters, numerical simulation examples with MATLAB®-based implementations, and end-of-chapter exercises. • Includes a Solutions Manual and Figure Slides for adopting instructors.
Book Synopsis Aeronautical Engineering: A Cumulative Index to a Continuing Bibliography (supplement 274) by :
Download or read book Aeronautical Engineering: A Cumulative Index to a Continuing Bibliography (supplement 274) written by and published by . This book was released on 1992 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA SP. written by and published by . This book was released on 1993 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Annual Report by : National Aeronautical Laboratory (India)
Download or read book Annual Report written by National Aeronautical Laboratory (India) and published by . This book was released on 2002 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 1042 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1980 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Eigenstructure Assignment Techniques Applied to Helicopter Flight Control Law Design by : Gail Hughes
Download or read book Eigenstructure Assignment Techniques Applied to Helicopter Flight Control Law Design written by Gail Hughes and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
