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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 94
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Book Description
A study was conducted to design an experimental flight test program for the Total In-Flight Simulator CTIFS) directed toward the interface between flying qualities requirements and flight control system design criteria. The eventual goal is to provide an interpretation or translation of flying qualities requirements for use by the flight control system designer. Specifically, an angle of attack and pitch rate command system matrix involving both short term and long term dynamics are specified for evaluation. A major objective of the research was to demonstrate that flying qualities criteria and flight control system configuration or architecture can be independent. Finally, additional configurations are proposed to evaluate the efficacy of dynamic decoupling.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 94
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Book Description
A study was conducted to design an experimental flight test program for the Total In-Flight Simulator CTIFS) directed toward the interface between flying qualities requirements and flight control system design criteria. The eventual goal is to provide an interpretation or translation of flying qualities requirements for use by the flight control system designer. Specifically, an angle of attack and pitch rate command system matrix involving both short term and long term dynamics are specified for evaluation. A major objective of the research was to demonstrate that flying qualities criteria and flight control system configuration or architecture can be independent. Finally, additional configurations are proposed to evaluate the efficacy of dynamic decoupling.
Author: MB Tischler
Publisher: Routledge
ISBN: 1351468448
Category : Technology & Engineering
Languages : en
Pages : 750
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Book Description
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.
Author: S. G. Fuller
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 726
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Book Description
Proceedings are reported of a symposium held in Dayton, sponsored by the Flight Dynamics Laboratory during 2-5 March 1982. The symposium was planned and ran by the Flight Control Division, specifically the Flying Qualities Group and the Control Techniques Group as part of an ongoing effort to revise and upgrade both MIL-F-8785C, Military Specification, Flying Qualities of Piloted Airplanes, and MIL-F-9490D, Flight Control System-Design, Installation and Test of Piloted Aircraft, General Specification For. Specialists from both the flying qualities and flight control system disciplines were gathered in Dayton from both industry and government agencies. Formal and informal presentations, plus workshop discussions, were structured around proposed draft versions of the new Flying Qualities MIL-Standard and Handbook and the new Flight Control Systems MIL-Specification and Handbook. This report contains a record of the presentations and discussions as submitted by the individual authors.
Author: Roger Pratt
Publisher: IET
ISBN: 9780852967669
Category : Technology & Engineering
Languages : en
Pages : 416
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Book Description
Annotation Bridging the gap between academic research and real-world applications, this reference on modern flight control methods for fixed-wing aircraft deals with fundamentals of flight control systems design, then concentrates on applications based on the modern control methods used in the latest aircraft. The book is written for practicing engineers who are new to the aviation industry, postgraduate students in strategic or applied research, and advanced undergraduates. Some knowledge of classical control is assumed. Pratt is a member of IEEE and is UK Member for AIAA's Technical Committee on Guidance, Navigation and Control. Annotation c. Book News, Inc., Portland, OR (booknews.com)
Author: Richard F. Whitbeck
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 32
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Book Description
Revisitation and extension of classical sampled data approaches for the analysis of discretely controlled continuous systems is the focus of this report. A review of basic linear analysis topics required to support later developments is given. These topics include Laplace, z- and advanced z-transform facts; partial fraction expansion; data holds and the switch decomposition technique. Extension of switch decomposition for the vector signal case is given. A new direct transform domain approach for analyzing two-rate sampled systems is developed. This approach also applies for multi-rate sampled systems in restricted circumstances. Utility of this approach resides in its operator notation and conventions for manipulation in connection with vector block diagram algebra. This, in turn, expedites development of pulse transfer functions and of response recursion relations for multivariable, closed-loop systems. This is accomplished without resorting to the more complicated switch decomposition method. Multi-rate sampling analysis procedures are used to sharpen the concept of 'frequency response' for discretely excited, continuous systems. All methods of analysis presented in this report are closed-form and exact in that no approximation is required in the mathematical development of any result.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 311
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Book Description
The study of flight control systems is of central importance in the design and flight test of modern aircraft. Increasingly these aircraft are designed with performance considerations only and sophisticated flight control systems are required to correct a host of handling qualities deficiencies. Today's complex control systems are comprised of various elements, washout filters, prefilters, sensors, electronic compensators and structural filters, in full authority fly-by-wire systems. The purpose of this course is to provide a fundamental understanding of the basic types of aircraft control strategies. Simple mechanical systems are presented including the effect of control system elements, such as actuators, artificial feel systems, and mechanical elements. Stability and control augmentation systems are then discussed, stressing the advantages and disadvantages of each type of feedback commonly used. Electronic compensators are studied as further refinements to the augmented system. Modern analog and digital electronic flight control systems are then analyzed to gain an appreciation for their operation and potential handling qualities deficiencies. In addition, automatic flight control systems are discussed including both autopilots and the more sophisticated integrated systems for automated maneuvering. Aircraft sensors used in most of these flight control systems are also analyzed. Finally, flight control system test techniques are presented.
Author: ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT NEUILLY-SUR-SEINE (FRAN CE)
Publisher:
ISBN:
Category :
Languages : en
Pages : 191
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Book Description
Judging the suitability of an aircraft to safely and effectively perform its mission without undue pilot skill and discomfort is what flying qualities is all about. Central to such judgement, and to the design of suitable aircraft plus flight control systems, is an understanding of what the pilot can do with ease and comfort or conversely what bothers him. The Lectures are designed to impart such understanding to both novice and seasoned practioners in flying qualities and flight control and thereby to provide the bridge required to extend flying qualities requirements from simple classic response aircraft, to the responses attending the use of full-time active control. It also provides a unifying connection among the empirically derived flying qualities requirements of different aircraft types, e.g. fixed and rotary wing. Mathematical models of pilot control behavior are explained. For purposes of ready and universal characterization, the aircraft plus flight control system (plus displays if applicable), is approximately matched by a lower order equivalent system of sufficient bandwidth to be indicative of the pilot's concerns. Some of the pitfalls and benefits of using flight simulators for flight control system development and flying qualities research are exposed and clarified. Keywords: Flight characteristics; Human factors engineering; France. (sdw).
Author: J. C. Gibson
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 180
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Book Description
Author: Robert C. Nelson
Publisher: WCB/McGraw-Hill
ISBN: 9780071158381
Category : Aerodynamique / Aeronautique / Aerospatial / Automatique / Avion / Commande / Conception / Controle / Navigation / Stabilite
Languages : en
Pages : 441
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Book Description
The second edition of Flight Stability and Automatic Control presents an organized introduction to the useful and relevant topics necessary for a flight stability and controls course. Not only is this text presented at the appropriate mathematical level, it also features standard terminology and nomenclature, along with expanded coverage of classical control theory, autopilot designs, and modern control theory. Through the use of extensive examples, problems, and historical notes, author Robert Nelson develops a concise and vital text for aircraft flight stability and control or flight dynamics courses.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309056888
Category : Transportation
Languages : en
Pages : 221
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Book Description
Adverse aircraft-pilot coupling (APC) events include a broad set of undesirable and sometimes hazardous phenomena that originate in anomalous interactions between pilots and aircraft. As civil and military aircraft technologies advance, interactions between pilots and aircraft are becoming more complex. Recent accidents and other incidents have been attributed to adverse APC in military aircraft. In addition, APC has been implicated in some civilian incidents. This book evaluates the current state of knowledge about adverse APC and processes that may be used to eliminate it from military and commercial aircraft. It was written for technical, government, and administrative decisionmakers and their technical and administrative support staffs; key technical managers in the aircraft manufacturing and operational industries; stability and control engineers; aircraft flight control system designers; research specialists in flight control, flying qualities, human factors; and technically knowledgeable lay readers.
