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Author: Howard H. Belmont Publisher: ISBN: Category : Actuators Languages : en Pages : 164
Book Description
This report describes a study of flight control actuation system with an objective to determine the degree of digitalization possible between the digital flight control processor and the control surface. A typical analog actuation system is defined as a reference for comparison with five alternates, each mechanized with increasing amounts of digital equipment. The report provides a basis for determining the direction of digital actuation systems. It verifies that distributed actuation systems are now feasible and promise enhanced performance, reliability, and cost reductions.
Author: Howard H. Belmont Publisher: ISBN: Category : Actuators Languages : en Pages : 164
Book Description
This report describes a study of flight control actuation system with an objective to determine the degree of digitalization possible between the digital flight control processor and the control surface. A typical analog actuation system is defined as a reference for comparison with five alternates, each mechanized with increasing amounts of digital equipment. The report provides a basis for determining the direction of digital actuation systems. It verifies that distributed actuation systems are now feasible and promise enhanced performance, reliability, and cost reductions.
Author: J. Norman Ball Publisher: ISBN: Category : Airplanes Languages : en Pages : 28
Book Description
The usefulness of digital techniques in the flight control systems of aircraft, missiles, and space vehicles is considered. The discussion is in terms of basic attitude control loops, and does not extend to outer loops used for guidance or navigation. It is pointed out that there are various techniques and types of equipment to which the word digital is applied. The discussion then considers in turn the various forms of input command and their influence, sensors, analog-digital and digital-analog converters, computers and computing methods for the attitude control task, and actuating devices for producing control moments. The choices between analog and digital methods are engineering decisions to be made in the light of various design requirements for each specific case. The problem of conversion between analog and digital information appears as a key point. For proper attitude control in the presence of structural vibrations, a high sampling and computing rate is necessary. Digital techniques provide accuracy, freedom from drift, insensitivity to stray noise, and adaptability to automatic checkout. They are well suited to implementation of nonlinear and adaptive control systems. (Author).
Author: Ernst Heinrich Hirschel Publisher: Springer Science & Business Media ISBN: 3642184847 Category : Technology & Engineering Languages : en Pages : 728
Book Description
From the pioneering glider flights of Otto Lilienthal (1891) to the advanced avionics of today’s Airbus passenger jets, aeronautical research in Germany has been at the forefront of the birth and advancement of aeronautics. On the occasion of the centennial commemoration of the Wright Brother’s first powered flight (December 1903), this English-language edition of Aeronautical Research in Germany recounts and celebrates the considerable contributions made in Germany to the invention and ongoing development of aircraft. Featuring hundreds of historic photos and non-technical language, this comprehensive and scholarly account will interest historians, engineers, and, also, all serious airplane devotees. Through individual contributions by 35 aeronautical experts, it covers in fascinating detail the milestones of the first 100 years of aeronautical research in Germany, within the broader context of the scientific, political, and industrial milieus. This richly illustrated and authoritative volume constitutes a most timely and substantial overview of the crucial contributions to the foundation and advancement of aeronautics made by German scientists and engineers.
Author: Publisher: ISBN: Category : Aeronautics Languages : en Pages : 580
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: Howard H. Belmont
Author: Howard H. Belmont
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Author: Eugene T. Raymond
Author: Society of Automotive Engineers, Inc
Author: J. Norman Ball
Author: Ernst Heinrich Hirschel
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