A Theoretical Study Of The Angular Motions Of Spinning Bodies In Space

Author : Jerrold H. Suddath
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.33/5 ( download)

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Download or read book A Theoretical Study of the Angular Motions of Spinning Bodies in Space written by Jerrold H. Suddath and published by . This book was released on 1961 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary: A theoretical study was made of the angular motions of spinning bodies in space. The analysis was based on Euler's dynamic equations which were linearized and solved analytically. The results of the study are directly applicable only to spin-stabilized vehicles with constant moments of inertia and angular displacements not exceeding about 15°. Simple analytical expressions were obtained which relate angular motions to spin-rate and inertia distributions for a given disturbance. Consideration was given to the effects produced by having artificial damping in the system. The study included numerical examples and comparisons of analytical solutions with machine solutions of exact dynamic equations. The analysis indicated that angular motions are sensitive to inertia distributions. In considering a rectangular-pulse pitching moment, it was found that the residual motion was very sensitive to the time at which the moment was removed. Artificial damping due to a perfect proportional control system seemed to be more advantageous to pencil-like configurations than to disk-like configurations.

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ISBN 13 :
Total Pages : 734 pages
Book Rating : 4.30/5 ( download)

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Download or read book NASA Technical Report written by and published by . This book was released on 1967 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Jack B. Esgar
Publisher :
ISBN 13 :
Total Pages : 732 pages
Book Rating : 4.38/5 ( download)

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Download or read book Analytical Study of Soft Landings on Gas-filled Bags written by Jack B. Esgar and published by . This book was released on 1960 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Peter R. Kurzhals
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.05/5 ( download)

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Download or read book Spin Dynamics of Manned Space Stations written by Peter R. Kurzhals and published by . This book was released on 1963 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : James J. Adams
Publisher :
ISBN 13 :
Total Pages : 34 pages
Book Rating : 4.56/5 ( download)

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Download or read book Study of an Active Control System for a Spinning Body written by James J. Adams and published by . This book was released on 1961 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Peter Ralph Kurzhals
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ISBN 13 :
Total Pages : 164 pages
Book Rating : 4.49/5 ( download)

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Download or read book An Approximate Solution of the Equations of Motion for Arbitrary Rotating Spacecraft written by Peter Ralph Kurzhals and published by . This book was released on 1967 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: The assumption of small changes in the inertia parameters has been used to derive approximate rotational equations of motion for arbitrary spinning spacecraft in the small angle and rate regime. Complex representations are introduced to define the rate and attitude errors produced by applied disturbances, and analytical solutions are obtained for the steady spinning mode and for the spin-up and despin mode. Solutions for the steady spinning mode consider both the uncontrolled and the controlled spacecraft motion for characteristic disturbance. These disturbances include initial errors, externally applied torques, and instantaneous and periodic mass motions within the spacecraft. The errors induced by the disturbances are described by the error component time histories and by vector traces of the complex error representations. Upper bounds of the errors are developed for the uncontrolled motion, and the required control techniques and control systems are examined for the controlled motion. Solutions for the spin-up and despin mode consider extensible spacecraft modules connected by struts or cables. Fuel consumption relations are derived for several extension techniques, and optimization of the extension techniques is shown to yield appreciable fuel savings. Comparisons of the analytical solutions and exact solutions obtained by numerical integration of the complete equations of motion are found to yield excellent agreement, and the applications of the approximate solution are illustrated for a manned orbital research laboratory and a large spinning space station.

Author : Jerrold H. Suddath
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.57/5 ( download)

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Download or read book Use of an Inertia Sphere to Damp the Angular Motions of Spinning Space Vehicles written by Jerrold H. Suddath and published by . This book was released on 1962 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Langley Research Center Staff
Publisher :
ISBN 13 :
Total Pages : 156 pages
Book Rating : 4.52/5 ( download)

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Download or read book A Report on the Research and Technological Problems Od Manned Rotating Spacecraft written by Langley Research Center Staff and published by . This book was released on 1962 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : United States. National Aeronautics and Space Administration
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ISBN 13 :
Total Pages : pages
Book Rating : 4.01/5 ( download)

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Download or read book Index to NASA Technical Publications written by United States. National Aeronautics and Space Administration and published by . This book was released on 1960-07 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

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ISBN 13 :
Total Pages : 446 pages
Book Rating : 4.9D/5 ( download)

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Download or read book NASA Technical Note written by and published by . This book was released on 1969 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: