A Theoretical Study of the Angular Motions of Spinning Bodies in Space

A Theoretical Study of the Angular Motions of Spinning Bodies in Space PDF Author: Jerrold H. Suddath
Publisher:
ISBN:
Category : Artificial satellites
Languages : en
Pages : 20

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Book Description
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.

A Theoretical Study of the Angular Motions of Spinning Bodies in Space

A Theoretical Study of the Angular Motions of Spinning Bodies in Space PDF Author: Jerrold H. Suddath
Publisher:
ISBN:
Category : Artificial satellites
Languages : en
Pages : 20

Get Book Here

Book Description
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.

Monthly Catalog of United States Government Publications

Monthly Catalog of United States Government Publications PDF Author:
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ISBN:
Category : Government publications
Languages : en
Pages : 1274

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NASA Technical Note PDF Author:
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ISBN:
Category :
Languages : en
Pages : 446

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Government-wide Index to Federal Research & Development Reports

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Category : Government publications
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The Development of Zonal Centrifuges and Ancillary Systems for Tissue Fractionation and Analysis

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Category : Medical
Languages : en
Pages : 558

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National Cancer Institute Monograph PDF Author:
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Category : Cancer
Languages : en
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ISBN:
Category : Jet propulsion
Languages : en
Pages : 76

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ISBN:
Category : Aerodynamics
Languages : en
Pages : 734

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Monthly Catalog of United States Government Publications, Cumulative Index

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Category : United States
Languages : en
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Analytical Study of Soft Landings on Gas-filled Bags

Analytical Study of Soft Landings on Gas-filled Bags PDF Author: Jack B. Esgar
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Category : Gas
Languages : en
Pages : 732

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