Approximate Airframe Transfer Functions And Application To Single Sensor Control Systems
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Approximate Airframe Transfer Functions And Application To Single Sensor Control Systems
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Author : Irving L. Ashkenas
language : en
Publisher:
Release Date : 1958
Approximate Airframe Transfer Functions And Application To Single Sensor Control Systems written by Irving L. Ashkenas and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1958 with Aeroelasticity categories.
Approximate Airframe Transfer Functions And Application To Single Sensor Control Systems
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Author : Irving L. Ashkenas
language : en
Publisher:
Release Date : 1958
Approximate Airframe Transfer Functions And Application To Single Sensor Control Systems written by Irving L. Ashkenas and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1958 with categories.
Topics On Flexible Airplane Dynamics The Application Of Flexible Airframe Transfer Function Approximations And The Sensitivity Of Airframe Transfer Functions To Elastic Mode Shapes
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Author :
language : en
Publisher:
Release Date : 1963
Topics On Flexible Airplane Dynamics The Application Of Flexible Airframe Transfer Function Approximations And The Sensitivity Of Airframe Transfer Functions To Elastic Mode Shapes written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with Aeroelasticity categories.
pt.3: The dynamic coupling of rigid and elastic degrees of freedom of an airplane are described by two methods. In the first, coupling is described by the changes in airframe characteristic equation roots caused by the introduction of coupling terms to the equations of motion. The second method employs modal response coefficients to compare the relative amplitudes of rigid and elastic degrees of freedom at each coupled mode frequency. Simple literal expressions are obtained for each of these descriptors and physical interpretations given. Time vector diagrams are also used to show the major parameters affecting coupling. (Author).
Nasa Technical Note
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Author :
language : en
Publisher:
Release Date : 1972
Nasa Technical Note written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with categories.
Topics On Flexible Airplane Dynamics Coupling Of The Rigid And Elastic Degrees Of Freedom Of An Airframe
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Author :
language : en
Publisher:
Release Date : 1963
Topics On Flexible Airplane Dynamics Coupling Of The Rigid And Elastic Degrees Of Freedom Of An Airframe written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with Aeroelasticity categories.
pt.3: The dynamic coupling of rigid and elastic degrees of freedom of an airplane are described by two methods. In the first, coupling is described by the changes in airframe characteristic equation roots caused by the introduction of coupling terms to the equations of motion. The second method employs modal response coefficients to compare the relative amplitudes of rigid and elastic degrees of freedom at each coupled mode frequency. Simple literal expressions are obtained for each of these descriptors and physical interpretations given. Time vector diagrams are also used to show the major parameters affecting coupling. (Author).
Aircraft Dynamics And Automatic Control
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Author : Duane T. McRuer
language : en
Publisher: Princeton University Press
Release Date : 2014-07-14
Aircraft Dynamics And Automatic Control written by Duane T. McRuer and has been published by Princeton University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-07-14 with Technology & Engineering categories.
Aeronautical engineers concerned with the analysis of aircraft dynamics and the synthesis of aircraft flight control systems will find an indispensable tool in this analytical treatment of the subject. Approaching these two fields with the conviction that an understanding of either one can illuminate the other, the authors have summarized selected, interconnected techniques that facilitate a high level of insight into the essence of complex systems problems. These techniques are suitable for establishing nominal system designs, for forecasting off-nominal problems, and for diagnosing the root causes of problems that almost inevitably occur in the design process. A complete and self-contained work, the text discusses the early history of aircraft dynamics and control, mathematical models of linear system elements, feedback system analysis, vehicle equations of motion, longitudinal and lateral dynamics, and elementary longitudinal and lateral feedback control. The discussion concludes with such topics as the system design process, inputs and system performance assessment, and multi-loop flight control systems. Originally published in 1974. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.
Analysis Of Several Handling Quality Topics Pertinent To Advanced Manned Aircraft
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Author : Systems Technology, Inc
language : en
Publisher:
Release Date : 1967
Analysis Of Several Handling Quality Topics Pertinent To Advanced Manned Aircraft written by Systems Technology, Inc and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Airplanes categories.
This report presents the results of analytical studies of a variety of handling quality topics related to advanced manned aircraft.
Nasa University Conference On Manual Control
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Author :
language : en
Publisher:
Release Date : 1966
Nasa University Conference On Manual Control written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with Airplanes categories.
U S Government Research Reports
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Author :
language : en
Publisher:
Release Date : 1964
U S Government Research Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Science categories.
An Analytical Study Of V Stol Handling Qualities In Hover And Transition
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Author : R. L. Stapleford
language : en
Publisher:
Release Date : 1965
An Analytical Study Of V Stol Handling Qualities In Hover And Transition written by R. L. Stapleford and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with Airplanes categories.
The hover analysis considers pilot attitude and position control tasks in the presence of horizontal gusts. The effects of each of the stability derivatives on the difficulty of the control tasks and on the closed-loop gust responses are determined. It is clearly shown that the handling qualities studies of control sensitivity and angular damping must consider the influences of M sub u (or L sub v) and should include gust inputs. These conclusions are substantiated by previous variable-stability-helicopter experiments. The effects of vehicle size and geometry are investigated by several approaches. The key result of increasing size is found to be a reduction in M sub u and L sub v which can, in turn, lower the requirements for control power and damping. The handling qualities during transition of two vehicles, a tilt duct and a tilt wing, which were previously tested on a simulator are analyzed. It is shown that both trim control and perturbations about the trim conditions must be considered. In fact, part of the increased difficulty in landing transitions, in comparison with takeoff transitions, is due to more difficult trim control; the much more stringent position control requirements in landing are also a contributing factor.