本文以ISIGHT为优化平台建立了航空发动机多辐板轮盘结构优化的设计方法。以轮盘各辐板径向破裂裕度、周向破裂裕度和低循环疲劳寿命为约束,采用轮盘质量为目标函数,应用试验设计和寻优设计组合方法完成了多辐板轮盘的结构优化设计工作。通过对某压气机多辐板轮盘的算例分析,在满足破裂裕度和低循环疲劳寿命的要求的情况下,实现多辐板轮盘减重的目标,同时使轮盘的应力分布更合理。 In this paper, ISIGHT as the optimization platform to establish aeroengine multi-spoke plate structure optimization design. Taking the radial rupture margin, the circumferential rupture margin and the low cycle fatigue life of each spoke plate as the constraint, the wheel quality is taken as the objective function. The multi-plate disc is completed by the experimental design and the optimal design combination method Structural optimization design work. Through the analysis of an example of a multi-disc plate of a compressor, the goal of reducing the weight of multi-plate plate is achieved while meeting the requirements of fracture margin and low cycle fatigue life, and at the same time, the stress distribution of the plate is more reasonable.