Optimal Control Theory Determination of Feasible Return-to-launch-site Aborts for the HL-20 Personnel Launch System Vehicle PDF Download
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Author: Kevin E. Dutton
Publisher:
ISBN:
Category : Launch complexes (Astronautics)
Languages : en
Pages : 32
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722463410
Category :
Languages : en
Pages : 28
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Book Description
The personnel launch system (PLS) being studied by NASA is a system to complement the space shuttle and provide alternative access to space. The PLS consists of a manned spacecraft launched by an expendable launch vehicle (ELV). A candidate for the manned spacecraft is the HL-20 lifting body. In the event of an ELV malfunction during the initial portion of the ascent trajectory, the HL-20 will separate from the rocket and perform an unpowered return to launch site (RTLS) abort. This work details an investigation, using optimal control theory, of the RTLS abort scenario. The objective of the optimization was to maximize final altitude. With final altitude as the cost function, the feasibility of an RTLS abort at different times during the ascent was determined. The method of differential inclusions was used to determine the optimal state trajectories, and the optimal controls were then calculated from the optimal states and state rates. Dutton, Kevin E. Langley Research Center RTOP 506-59-61-04...
Author: Kevin E. Dutton
Publisher:
ISBN:
Category : Launch complexes (Astronautics)
Languages : en
Pages : 32
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Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1048
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Author:
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ISBN:
Category : Government publications
Languages : en
Pages : 1450
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 772
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 654
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Author:
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ISBN:
Category :
Languages : en
Pages : 98
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 180
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 182
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 522
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