Minimum Fuel Control of a Pitch Motion of a Satellite in Circular Orbit
Author: Frank Jameson Rees
Publisher:
Published: 1968
Total Pages: 226
ISBN-13:
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Author: Frank Jameson Rees
Publisher:
Published: 1968
Total Pages: 226
ISBN-13:
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Publisher:
Published: 1994
Total Pages: 564
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DOWNLOAD EBOOKAuthor: Ronald Earl Busch
Publisher:
Published: 1966
Total Pages: 150
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Publisher:
Published: 1965
Total Pages: 1184
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DOWNLOAD EBOOKAuthor: Charles M. Jackson
Publisher:
Published: 1961
Total Pages: 38
ISBN-13:
DOWNLOAD EBOOKExisting expressions are used to obtain the minimum propellant fraction required for return from a circular orbit as a function of vacuum trajectory range. The solutions for the parameters of the vacuum trajectory are matched to those of the atmospheric trajectory to obtain a complete return from orbit to earth. The results are restricted by the assumptions of (1) impulsive velocity change, (2) nearly circular transfer trajectory, (3) spherical earth, atmosphere, and gravitational field, (4) exponential atmospheric density variation with attitude and (5) a nonrotating atmosphere. Calculations are made to determine the effects of longitudinal and lateral range on required propellant fraction and reentry loading for a nonrotating earth and for several orbital altitudes. The single- and two-impulse method of return is made and the results indicate a "trade off" between propellant fraction required and landing-position accuracy. An example of a return mission from a polar orbit is discussed where the initial deorbit point is the intersection of the North Pole horizon with the satellite orbit. Some effects of a rotating earth are also considered. It is found that, for each target-orbital-plane longitudinal difference, there exists a target latitude for which the required propellant fraction is a minimum.
Author: Albert E. Brown
Publisher:
Published: 1967
Total Pages: 28
ISBN-13:
DOWNLOAD EBOOKAuthor: Gary Daniel Wolske
Publisher:
Published: 1969
Total Pages: 124
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DOWNLOAD EBOOKAuthor: Gary D. Wolske
Publisher:
Published: 1969
Total Pages: 116
ISBN-13:
DOWNLOAD EBOOKThis report investigates an optimal control method based on linear programming for satellite fuel consumption.
Author: William Henry Boykin
Publisher:
Published: 1967
Total Pages: 224
ISBN-13:
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