Topics On Flexible Airplane Dynamics Pt 1 Residual Stiffness Effects In Truncated Modal Analysis

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Topics On Flexible Airplane Dynamics Residual Stiffness Effects In Truncated Modal Analysis

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Author :
language : en
Publisher:
Release Date : 1963

Topics On Flexible Airplane Dynamics Residual Stiffness Effects In Truncated Modal Analysis 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).

Topics On Flexible Airplane Dynamics

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Author :
language : en
Publisher:
Release Date : 1963

Topics On Flexible Airplane Dynamics 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).

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).

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).

Topics On Flexible Airplane Dynamics Pt 1 Residual Stiffness Effects In Truncated Modal Analysis

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Author : B.F. Pearce
language : en
Publisher:
Release Date : 1963

Topics On Flexible Airplane Dynamics Pt 1 Residual Stiffness Effects In Truncated Modal Analysis written by B.F. Pearce and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with 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.

The Shock And Vibration Digest

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Author :
language : en
Publisher:
Release Date : 1982

The Shock And Vibration Digest written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Shock (Mechanics) categories.

Scientific And Technical Aerospace Reports

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Author :
language : en
Publisher:
Release Date : 1963

Scientific And Technical Aerospace 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 1963 with Aeronautics categories.

Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Methodologies For The Direct Digital Control Of Highly Flexible Vehicles

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Author : Duane T. McRuer
language : en
Publisher:
Release Date : 1985

Methodologies For The Direct Digital Control Of Highly Flexible Vehicles written by Duane T. McRuer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Large space structures (Astronautics) categories.

This report presents methodologies for the direct digital control of vehicles with flexible modes. The techniques yield robust control system designs with modest or minimal requirements on the number of sensors and control actuators. the digital system techniques used include primarily the w-transforms for direct design and stability assessment, and the 'hybrid' frequency response, for assessment and understanding of digital system peculiarities. The 'sawtooth Bode' is used as the basic control system design concept. These three elements are applied to several examples, including a comprehensive case study for a fighter aircraft flight and flexible mode control system. Both continuous and discrete system designs are considered and the continuous system characteristics are contrasted with an optimal control design. This comparison pinpoints some of the features needed to make optimal control procedures more practical and mature for flexible vehicle control applications. An important step is taken in this direction by determining the nature of performance criteria which yield, for an example case, a highly robust, extremely simple controller derived from an optimal control procedure.

Aeroelastic Effects From A Flight Mechanics Standpoint

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Author : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Flight Mechanics Panel
language : en
Publisher:
Release Date : 1970

Aeroelastic Effects From A Flight Mechanics Standpoint written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Flight Mechanics Panel and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Aeroelasticity categories.