摘要
针对卫星系统中多目标、多约束、耗时的结构优化问题,建立了卫星结构的多目标协同优化模型.将协同优化方法与全局多目标优化算法相结合,并针对协同优化方法的缺陷采取一些改进措施,提出了协同优化方法与全局多目标优化算法(CO-PE)组合优化方法.以某卫星结构多目标优化问题为例,在iSIGHT优化软件中对卫星结构进行多目标协同优化设计,通过CO-PE组合优化方法获取Pareto最优解集.优化结果表明,多目标协同优化模型能够简化优化问题的复杂度,基于近似模型的CO-PE组合优化方法具有较好的准确性和高效性,对实际工程中类似的复杂结构优化问题具有一定的参考价值.
Aimed at the time-consuming problem of multi-objective and multi-constrained structure optimi- zation of satellite system, a multi-objective collaborative optimization model was proposed for satellite structure. A CO-PE（collaboartive optimization and parto explorer） combinatorial optimization method was presented by combining collaborative optimization with the global multi-objective optimization algorithm, and taking some improvement measures in view of the defects of collaborative optimization. The multi ob- jective optimization of a satellite was taken as an example, where iSIGHT was used to conduct the multi objective optimization of satellite structure. Then, the Pareto optimal set was obtained by adopting CO- PE. The results show that the multi-objective collaborative optimization model can simplify the complexity of optimization problem, and the CO-PE combinatorial optimization method based on the approximation model has good accuracy and efficiency. This method provides a certain reference value for similar complex structure optimization problem.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2014年第10期1446-1450,共5页
Journal of Shanghai Jiaotong University
关键词
卫星结构优化
协同优化
全局多目标优化算法
structural optimization of satellite
collaborative optimization
global multi-objective optimization algorithm
