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为了设计出高性能航空发动机风扇盘结构,首先采用基于自适应随机抽样双向渐进拓扑优化方法对风扇盘进行拓扑优化,得到轮盘合理拓扑构型,然后基于该拓扑构型,采用形状优化方法对轮盘构型做进一步优化。结果表明,在满足强度要求下,设计出了高性能的三辐板、四辐板风扇盘最终减重19.23%,21.59%(其中拓扑优化减重17.12%,19.43%),并且最优解应变能密度分布更加均匀,说明了宽弦风扇盘的合理构型是由若干辐板组成的多辐板结构。
In order to design a high-performance aero-engine fan tray structure, a topology optimization method based on self-adaptive random sampling two-way asymptotic topology optimization is used to obtain the optimal topology of the fan tray. Then, based on the topology configuration, the shape optimization method is used Roulette configuration to further optimize. The results show that the three-spoke plate with high performance is designed under the requirement of strength. The final four-spoke plate fan disc weighs 19.23% and 21.59%, respectively (the topological optimization weight loss is 17.12% and 19.43%), and the optimal solution strain The density distribution is more uniform, indicating that the reasonable configuration of a wide-chord fan tray is a multi-web structure composed of several webs.