Multidisciplinary Collaborative Optimization of General Parameters of Low Orbit Spacecraft

Abstract:

This article takes the optimization of general parameters of low-orbit spacecraft as object. Three subsystems of attitude and orbit control subsystem, power subsystem and structure subsystem were researched. Coupling relations between subsystems and system were described. Analysis models of the subsystems were provided. Meanwhile, optimization models of the researched problem were established based on collaborative optimization (CO). Sequential quadratic programming (NLPQL) was selected as search strategy of CO subsystem optimizer. While NLPQL, adaptive simulated annealing algorithm (ASA) and multi-island genetic algorithm (MIGA) were respectively selected as the search strategy of CO system-level optimizer to search. Furthermore, multidisciplinary feasible method (MDF) was used to optimize the same problem. NLPQL, ASA, MIGA were respectively selected as the search strategy of MDF system-level optimizer. The optimization result of CO was compared to the optimization result of MDF shows that using CO can get the result which close to the optimal result. That proves CO can be effectively applied to multidisciplinary design optimization of the general parameters of the low-orbit spacecraft.

• Periodical: Applied Mechanics and Materials (Volumes 268-270)
• Pages: 1482-1489
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.268-270.1482
• Online since: December 2012
• Authors: Le Feng Sun, Bai Nan Zhang, Rui Nie
• Keywords: Collaborative Optimization, General Parameters, Low-Orbit Spacecraft, Multidisciplinary Design Optimization

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DOI: 10.2514/6.2006-7080