论文部分内容阅读
对基于近似模型的卫星结构动力学多目标优化进行了研究。给出了响应面模型、Kriging模型和径向基函数(RBF)模型三种近似模型的原理。基于某卫星结构有限元模型建立了优化的三种近似模型,给出了优化流程。分析结果表明:RBF模型的精度最高,该模型结合遗传算法的优化方法不仅显著降低了计算时间成本,而且有良好的精度。
The multi-objective optimization of satellite structure dynamics based on approximate model is studied. The principle of three approximate models of response surface model, Kriging model and radial basis function (RBF) model is given. Based on the finite element model of a satellite structure, three optimization models are established and the optimization process is given. The analysis results show that the RBF model has the highest accuracy. The model combined with the genetic algorithm optimization method not only significantly reduces the computational time cost, but also has a good accuracy.