星箭动力学分析中多动力子结构模型综合研究

摘要

Fairing’s physical mass&stiffness matric was obtained by the technique of model extraction, the fairing matric will joint with double spacecrafts after being condensed and mutil-substructure model synthesize. The result is authentic by comparing with modal experiment, which is the base of LV dynamic computation and SC/LV coupled load analysis.%利用模型抽取技术得到整流罩的物理质量刚度阵，将其进行缩聚变换并采用多子结构模型综合技术完成与双星模型的组合。与整流罩模态试验结果的一致性说明计算结果的正确和可信，为后续全箭的动特性计算和星箭载荷耦合分析奠定了基础。