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Please use this identifier to cite or link to this item:
http://hdl.handle.net/2014/40522
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| Title: | Design and optimization of low-thrust orbit transfers using Q-law and evolutionary algorithms |
| Authors: | Lee, Seungwon
von Allmen, Paul
Fink, Wolfgang
Petropoulos, Anastassios
Terrile, Richard |
| Keywords: | low-thrust orbit transfer
Q-law
evolutionary algorithms |
| Issue Date: | 5-Mar-2005 |
| Publisher: | Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2005. |
| Citation: | IEEE Aerospace Conference, Big Sky, Montana, March 5-12, 2005. |
| 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. |
| URI: | http://hdl.handle.net/2014/40522 |
| Appears in Collections: | JPL TRS 1992+
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