NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Fuel consumption in optimal controlA method has been developed for comparing three optimal control strategies based on fuel consumption. A general cost function minimization procedure was developed by applying two theorems associated with convex sets. Three cost functions associated with control saturation, pseudofuel, and absolute fuel are introduced and minimized. The first two cost functions led to the bang-bang and continuous control strategies, and the minimization of absolute fuel led to an impulsive strategy. The three control strategies were implemented on two elementary systems and a comparison of fuel consumption was made. The impulse control strategy consumes significantly less fuel than the continuous and bang-bang control strategies. This comparison suggests a potential for fuel savings in higher-order systems using impulsive control strategies. However, since exact solutions to fuel-optimal control for large-order systems are difficult if not impossible to achieve, the alternative is to develop near-optimal control strategies.
Document ID
19920045519
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Redmond, Jim
(NASA Headquarters Washington, DC United States)
Silverberg, Larry
(North Carolina State University Raleigh, United States)
Date Acquired
August 15, 2013
Publication Date
April 1, 1992
Publication Information
Publication: Journal of Guidance, Control, and Dynamics
Volume: 15
ISSN: 0731-5090
Subject Category
Spacecraft Propulsion And Power
Accession Number
92A28143
Funding Number(s)
CONTRACT_GRANT: NAGW-1331
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available