Safety-Optimal Linearized Impulsive Rendezvous with Trajectory Uncertainties
Publication: Journal of Aerospace Engineering
Volume 27, Issue 6
Abstract
Different from the current studies on the impulsive rendezvous which are mainly normal propellant-optimal or time-optimal designs, the safety-optimal impulsive rendezvous with consideration of practical trajectory uncertainties is investigated in this paper. An optimization model for safety-optimal rendezvous is established based on the Clohessy-Wiltshire (C-W) equations, which employs one new, recently proposed quantitative performance index of the rendezvous trajectory safety as the objective function. A real-coded genetic algorithm is adopted to locate the optimal solution. The safety index and the optimization approach are tested by several rendezvous problems with different numbers of impulses and different approach directions. The practical application value of the safety-optimal rendezvous trajectory is demonstrated by comparing with the traditional propellant-optimal and time-optimal rendezvous trajectories.
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Acknowledgments
This work was supported by the National Natural Science Foundation of China (Nos. 10902121 and 11222215), the 973 Project (No. 2013CB733100), the Hunan Provincial Natural Science Foundation of China (No. 13JJ1001).
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Published In
Journal of Aerospace Engineering
Volume 27 • Issue 6 • November 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Jan 24, 2013
Accepted: Jun 18, 2013
Published online: Jun 20, 2013
Discussion open until: Oct 23, 2014
Published in print: Nov 1, 2014
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