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Design and optimization of low-thrust orbit transfers using Q-law and evolutionary algorithms

Show simple item record Lee, Seungwon von Allmen, Paul Fink, Wolfgang Petropoulos, Anastassios Terrile, Richard 2007-11-27T22:47:55Z 2007-11-27T22:47:55Z 2005-03-05
dc.identifier.citation IEEE Aerospace Conference, Big Sky, Montana, March 5-12, 2005. en
dc.identifier.clearanceno 04-3362
dc.description.abstract Future space missions will depend more on lowthrust propulsion (such as ion engines) thanks to its high specific impulse. Yet, the design of low-thrust trajectories is complex and challenging. Third-body perturbations often dominate the thrust, and a significant change to the orbit requires a long duration of thrust. In order to guide the early design phases, we have developed an efficient and efficacious method to obtain approximate propellant and flight-time requirements (i.e., the Pareto front) for orbit transfers. A search for the Pareto-optimal trajectories is done in two levels: optimal thrust angles and locations are determined by Q-law, while the Q-law is optimized with two evolutionary algorithms: a genetic algorithm and a simulated-annealing-related algorithm. The examples considered are several types of orbit transfers around the Earth and the asteroid Vesta. en
dc.description.sponsorship NASA/JPL en
dc.format.extent 1367088 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2005. en
dc.subject low-thrust orbit transfer en
dc.subject Q-law en
dc.subject evolutionary algorithms en
dc.title Design and optimization of low-thrust orbit transfers using Q-law and evolutionary algorithms en
dc.type Preprint en

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