Topics on Flexible Airplane Dynamics. Part Iv. Coupling of the Rigid and Elastic Degrees of Freedom of an Airframe - Autopilot System

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ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Topics on Flexible Airplane Dynamics. Part Iv. Coupling of the Rigid and Elastic Degrees of Freedom of an Airframe - Autopilot System by : H. R. Pass

Download or read book Topics on Flexible Airplane Dynamics. Part Iv. Coupling of the Rigid and Elastic Degrees of Freedom of an Airframe - Autopilot System written by H. R. Pass and published by . This book was released on 1963 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the use of the sensitivity techniques of ASD-TDR-62-1014 for locating a single sensor on an elastic airframe-autopilot system. The sensor is located such that closed loop coupling does not interfere with good closed-loop operation of the airframe. Such coupling can physically be interpreted as the generation of undesired command inputs to the autopilot caused by the detection of elastic motion by the sensor. A reasonable first loca tion for the sensor is decided by engineering judgment and the sensitivity of the closed-loop roots to sensor location is found by employing the aforementioned sensitivity techniques. Prediction of the most desirable sensor loca tion can then be made without many tedious iterations. (Author).

Topics on Flexible Airplane Dynamics: Coupling of the rigid and elastic degrees of freedom of an airframe

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ISBN 13 :
Total Pages : 86 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Topics on Flexible Airplane Dynamics: Coupling of the rigid and elastic degrees of freedom of an airframe by :

Download or read book Topics on Flexible Airplane Dynamics: Coupling of the rigid and elastic degrees of freedom of an airframe written by and published by . This book was released on 1963 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).

Topics on Flexible Airplane Dynamics

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ISBN 13 :
Total Pages : 38 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Topics on Flexible Airplane Dynamics by :

Download or read book Topics on Flexible Airplane Dynamics written by and published by . This book was released on 1963 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).

Topics on Flexible Airplane Dynamics. Pt. 4. Coupling of the Rigid and Elastic Degrees of Freedom of an Airframe-autopilot System

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Total Pages : pages
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Book Synopsis Topics on Flexible Airplane Dynamics. Pt. 4. Coupling of the Rigid and Elastic Degrees of Freedom of an Airframe-autopilot System by : H.R. Pass

Download or read book Topics on Flexible Airplane Dynamics. Pt. 4. Coupling of the Rigid and Elastic Degrees of Freedom of an Airframe-autopilot System written by H.R. Pass and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

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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ISBN 13 :
Total Pages : 62 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Topics on Flexible Airplane Dynamics: The application of flexible airframe transfer function approximations and the sensitivity of airframe transfer functions to elastic mode shapes by :

Download or read book 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 published by . This book was released on 1963 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).

Topics on Flexible Airplane Dynamics: Residual stiffness effects in truncated modal analysis

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ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Topics on Flexible Airplane Dynamics: Residual stiffness effects in truncated modal analysis by :

Download or read book Topics on Flexible Airplane Dynamics: Residual stiffness effects in truncated modal analysis written by and published by . This book was released on 1963 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).

Topics on Flexible Airplane Dynamics. Part Iii. Coupling of the Rigid and Elastic Degrees of Freedom of an Airframe

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ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Topics on Flexible Airplane Dynamics. Part Iii. Coupling of the Rigid and Elastic Degrees of Freedom of an Airframe by : H. R. Pass

Download or read book Topics on Flexible Airplane Dynamics. Part Iii. Coupling of the Rigid and Elastic Degrees of Freedom of an Airframe written by H. R. Pass and published by . This book was released on 1963 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dynamic coupling of rigid and elastic de grees of freedom of an airplane are described by two methods. In the first, coupling is de scribed by the changes in airframe character istic equation roots caused by the introduc tion of coupling terms to the equations of mo tion. The second method employs modal response coeffients to compare the relative amplitudes of rigid and elastic degrees of freedom at each coupled mode frequency. Simple literal expres sions are obtained for each of these descrip tors and physical interpretations given. Time vector diagrams are also used to show the major parameters affecting coupling. (Author).

Scientific and Technical Aerospace Reports

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ISBN 13 :
Total Pages : 1342 pages
Book Rating : 4.P/5 (18 download)

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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 1963 with total page 1342 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Topics on Flexible Airplane Dynamics. Pt. 3. Coupling of the Rigid and Elastic Degrees of Freedom of an Airframe

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (841 download)

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Book Synopsis Topics on Flexible Airplane Dynamics. Pt. 3. Coupling of the Rigid and Elastic Degrees of Freedom of an Airframe by : H.R. Pass

Download or read book Topics on Flexible Airplane Dynamics. Pt. 3. Coupling of the Rigid and Elastic Degrees of Freedom of an Airframe written by H.R. Pass and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

U.S. Government Research Reports

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ISBN 13 :
Total Pages : 1416 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis U.S. Government Research Reports by :

Download or read book U.S. Government Research Reports written by and published by . This book was released on 1964 with total page 1416 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Aeroelastic Effects from a Flight Mechanics Standpoint

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ISBN 13 :
Total Pages : 874 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Aeroelastic Effects from a Flight Mechanics Standpoint by : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Flight Mechanics Panel

Download or read book Aeroelastic Effects from a Flight Mechanics Standpoint written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Flight Mechanics Panel and published by . This book was released on 1970 with total page 874 pages. Available in PDF, EPUB and Kindle. Book excerpt:

An Analysis of Methods for Predicting the Stability Characteristics of an Elastic Airplane. Appendix A - Equations of Motion and Stability Criteria

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ISBN 13 :
Total Pages : 470 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis An Analysis of Methods for Predicting the Stability Characteristics of an Elastic Airplane. Appendix A - Equations of Motion and Stability Criteria by :

Download or read book An Analysis of Methods for Predicting the Stability Characteristics of an Elastic Airplane. Appendix A - Equations of Motion and Stability Criteria written by and published by . This book was released on 1968 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:

An Analysis of Methods for Predicting the Stability Characteristics of an Elastic Airplane. Appendix C - Methods for Predicting Stability and Response Characteristics

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ISBN 13 :
Total Pages : 608 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis An Analysis of Methods for Predicting the Stability Characteristics of an Elastic Airplane. Appendix C - Methods for Predicting Stability and Response Characteristics by :

Download or read book An Analysis of Methods for Predicting the Stability Characteristics of an Elastic Airplane. Appendix C - Methods for Predicting Stability and Response Characteristics written by and published by . This book was released on 1968 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:

An Analysis of Methods for Predicting the Stability Characteristics of an Elastic Airplane Summary Report

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ISBN 13 :
Total Pages : 384 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis An Analysis of Methods for Predicting the Stability Characteristics of an Elastic Airplane Summary Report by :

Download or read book An Analysis of Methods for Predicting the Stability Characteristics of an Elastic Airplane Summary Report written by and published by . This book was released on 1968 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:

AGARD Conference Proceedings

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ISBN 13 :
Total Pages : 440 pages
Book Rating : 4.X/5 (3 download)

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Book Synopsis AGARD Conference Proceedings by : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development

Download or read book AGARD Conference Proceedings written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development and published by . This book was released on 1970 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Mitteilungen aus dem Institut für Flugzeugstatik und Leichtbau an der Eidgenössischen Technischen Hochschule in Zürich

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ISBN 13 :
Total Pages : 152 pages
Book Rating : 4.:/5 (5 download)

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Book Synopsis Mitteilungen aus dem Institut für Flugzeugstatik und Leichtbau an der Eidgenössischen Technischen Hochschule in Zürich by :

Download or read book Mitteilungen aus dem Institut für Flugzeugstatik und Leichtbau an der Eidgenössischen Technischen Hochschule in Zürich written by and published by . This book was released on 1965 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Topics on Flexible Airplane Dynamics. Part I. Residual Stiffness Effects in Truncated Modal Analysis

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ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Topics on Flexible Airplane Dynamics. Part I. Residual Stiffness Effects in Truncated Modal Analysis by : B. F. Pearce

Download or read book Topics on Flexible Airplane Dynamics. Part I. Residual Stiffness Effects in Truncated Modal Analysis written by B. F. Pearce and published by . This book was released on 1963 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The flexible airframe equations of motion are derived with an arbitrary number of elastic de grees of freedom included. The number of equa tions is reduced to include only those necessary for adequate dynammic representation of the air frame, and the effects of the excluded modes are shown. The result is that a matrix X sub in finity must be calculated which is a function of the flexibility represented by the excluded modes. The calculation of this matrix is com plicated by the fact that it is, in explicit form, a function of the mode shapes for the ex cluded elastic degrees of freedom. Usually only a few of these higher order mode shapes can be found withh any accuracy. The problem is resolved by identifying two quantities, X sub f and X sub f infinity, which are ssuperposable to give the complete effects of structural static deflections, X sub infinity. This physi cally satisfying result is implemented by re lating X sub f infinity and X sub f to basic geometrical, inertial, and stiffness properties. The solution is completely general and applies to all elastic systems. (Author).