Research and Development of Aircraft Control Actuation Systems. The Development of a Direct Drive Fly-By-Wire Flight Control System and Evaluation of a Force Sharing Fly-By-Wire Actuator PDF Download
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Author: Gavin D. Jenney Publisher: ISBN: Category : Languages : en Pages : 216
Book Description
This report describes the design and test evaluation of a direct drive fly-by-wire redundant control system. Also included in the report is the evaluation testing of a fly-by-wire tandem actuator mechanization developed by Parker-Hannifin Aerospace Hydraulics Division, Irvine California. The direct drive system is based on using moving coil force motors to position a hydraulic control valve without hydraulic amplification. The system is designed as a single fail operate system which will accept one input or component failure and continue to operate with acceptable performance. The test results verified that the failure modes and performance met the design goals. The system incorporates component dispersion techniques to allow single hit survivability. The direct drive mechanization offers adequate performance with minimum complexity as a fly-by-wire control system. The Parker-Hannifin actuator mechanization is a two fail operate configuration using an integrated secondary actuator with both force and position summing. The test results document the operational characteristics of the design. (Author).
Author: Gavin D. Jenney Publisher: ISBN: Category : Languages : en Pages : 216
Book Description
This report describes the design and test evaluation of a direct drive fly-by-wire redundant control system. Also included in the report is the evaluation testing of a fly-by-wire tandem actuator mechanization developed by Parker-Hannifin Aerospace Hydraulics Division, Irvine California. The direct drive system is based on using moving coil force motors to position a hydraulic control valve without hydraulic amplification. The system is designed as a single fail operate system which will accept one input or component failure and continue to operate with acceptable performance. The test results verified that the failure modes and performance met the design goals. The system incorporates component dispersion techniques to allow single hit survivability. The direct drive mechanization offers adequate performance with minimum complexity as a fly-by-wire control system. The Parker-Hannifin actuator mechanization is a two fail operate configuration using an integrated secondary actuator with both force and position summing. The test results document the operational characteristics of the design. (Author).
Author: Gavin D. Jenney Publisher: ISBN: Category : Languages : en Pages : 401
Book Description
This report describes the test evaluation of two Fly-By-Wire development demonstrators submitted to the Air Force for evaluation. The demonstrators were submitted to the Air Force under contract by Grumman Aerospace Corporation, Bethpage, New York. One demonstrator was a force sharing mechanization constructed for Grumman Aircraft by Bertea Corporation of Irvine, California. The other demonstrator was an active-on-line mechanization constructed for Grumman Aerospace Corporation by National Waterlift Corporation of Kalamazoo, Michigan. For the evaluation, the demonstrators were set up with specific performance characteristics which had been used for previous tests performed on other FBW mechanizations. Except where special testing was warranted to investigate potentially unique characteristics of a particular system, the same test procedures were used for both demonstration systems. The report describes the systems evaluated, the test procedures and presents the test results obtained. (Author).
Author: Vernon R Schmitt Publisher: SAE International ISBN: 0768002184 Category : Technology & Engineering Languages : en Pages : 134
Book Description
Fly-by-wire in aircraft flight control design is more than adding a simple wire -- it is a sophisticated system that changes the way aircraft are designed and the way they fly. Prepared and written by experts who directed or staffed fly-by-wire research and development programs, this book includes explanations of the system's design and application, providing both the "how" and the "why" of this remarkable technology. Chapters include: Introduction Background of Fly-by-Wire Required Programs The Survivable Flight Control System (SFCS) Program Technology Transition and Application
Author: Gavin D. Jenney Publisher: ISBN: Category : Languages : en Pages : 211
Book Description
This report describes the development of a flutter suppression actuator technique and the wind tunnel evaluation of that technique. The report also describes the flightworthiness testing of a direct drive Fly-By-Wire flight control system applied to the aileron axis of an F-4 aircraft. Also included is an evaluation of an angular rate sensing augmentation actuator supplied to the Air Force for evaluation. Presented in the material are the test results of all three experimental evaluations. Further testing of the flutter suppression is recommended to clarify an anomoly in the results of the testing. The direct drive control system passed its environmental testing used to establish flight worthiness. The rate sensing actuator operated as designed.
Author: David Kern Publisher: Kern Aerospace, LLC ISBN: Category : Transportation Languages : en Pages : 32
Book Description
The #1 guide to understanding the "why and how" of fly-by-wire flight control systems. This book is an approachable and easily understandable must-read for aviation professionals! Why don't new aircraft designs allow the pilots a mechanical control connection? This book explains how fly-by-wire fixes the top 5 problems with mechanical controls for high performance aircraft. Rather than describe a particular aircraft’s design with confusing acronyms, readers will get a "behind the scenes" understanding for the critical concepts that apply to any modern aircraft. Because these design principles are easily described and understood, readers of this book will be armed with knowledge as they approach their flight manual procedures. Including: - Problems with mechanical flight controls - Advantages of fly-by-wire - How and why can fly-by-wire control systems fail? - Why are four computers better than one or two? - Explanations of the control laws used by business jets, fighters, and airliners - What sensors are needed, and how the system maintains control when sensors are lost - Design considerations for risk mitigation in case of component failures Buy this book to read on your next layover!
Author: Publisher: ISBN: Category : Aeronautics Languages : en Pages : 708
Book Description
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).
Author: Gavin D. Jenney
Author: Gavin D. Jenney
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Author: Gavin D. Jenney
Author: Vernon R Schmitt
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Author: Gavin D. Jenney
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Author: David Kern
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