An Investigation of an Expanding Elliptical Earth Escape Trajectory for a Low Thrust Space Vehicle
Author: Sheldon Drews
Publisher:
Published: 1961
Total Pages: 144
ISBN-13:
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Author: Sheldon Drews
Publisher:
Published: 1961
Total Pages: 144
ISBN-13:
DOWNLOAD EBOOKAuthor: K. J. Schwenzfeger
Publisher:
Published: 1974
Total Pages: 44
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DOWNLOAD EBOOKAuthor: Wilbur F. Dobson
Publisher:
Published: 1962
Total Pages: 20
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DOWNLOAD EBOOKAuthor: Naval Postgraduate School (U.S.)
Publisher:
Published:
Total Pages: 52
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DOWNLOAD EBOOKAuthor: Naval Postgraduate School (U.S.)
Publisher:
Published: 1961
Total Pages: 520
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DOWNLOAD EBOOKAuthor: Saeed Al Jaberi
Publisher:
Published: 2014
Total Pages:
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DOWNLOAD EBOOKThe bases and principles of the circular restricted three body problem (CRTBP) were analyzed and used to find spacecraft trajectories between a low-Earth orbit to the Moon. Since CRTBP does not have a general solution, numerical techniques were adapted to find approximated solutions. The most important parameter in the study was the Jacobi constant C. The Jacobi integral (constant) is the only conserved quantity in the three body system. Different values of C correspond to different geometries and permissible regions for a spacecraft in the Earth-Moon system. These permissible regions are delimited by the zero-velocity curves. Transverse, constant-level thrust trajectories were simulated to examine the range of C values that could be reached. The goal was to reach a Jacobi constant of -1.59411; at this value, the permissible region of the spacecraft expands enough to allow a transfer from Earth's orbit to an orbit around the Moon. Only a reachability criterion was considered; the optimal control problem of how to steer the thrust to achieve a lunar arrival is beyond the scope of this research.
Author: Jack A. White (researcher)
Publisher:
Published: 1960
Total Pages: 70
ISBN-13:
DOWNLOAD EBOOKAuthor: Massachusetts Institute of Technology
Publisher:
Published: 1957
Total Pages: 1164
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DOWNLOAD EBOOKAuthor:
Publisher:
Published: 1975
Total Pages: 1116
ISBN-13:
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