航空发动机轮盘参数化结构优化  

Parameterized structural optimization on aeroengine turbine disk

作　　者：罗莉 黄大永 陈亚龙 王克菲 李杰 

机构地区：[1]中国航发商用航空发动机有限责任公司,上海201108

出　　处：《计算机辅助工程》2017年第2期7-13,共7页Computer Aided Engineering

摘　　要：为降低航空发动机轮盘的质量,提高发动机推质比,对发动机转子轮盘进行参数化结构优化设计.研究辐板不同高度处厚度与轮盘径向破裂裕度的关系,以简化轮盘辐板优化方法.以周向破裂转速裕度为约束条件,体积最小为优化目标函数,利用Isight软件和有限元数值模拟方法研究轮盘盘心优化方法,并通过算例计算验证其正确性.结果表明:在满足约束条件的基础上,轮盘体积减小8.66%,最大等效应力减少10.4%.该方法可为航空发动机轮盘轻量化开发提供参考.To reduce the aeroengine disk mass and improve the thrust to weight ratio of engine, the parameterized structural optimization is performed on an engine rotor disk. The optimization method of disk web is simplified by researching the relation between web thickness in different heights and radial burst margin of disk. Taking circumferential burst speed margin as the constraint condition and minimum volume as optimization objective function, Isight software and finite element analysis simulation is used to study disk center optimization method, and an example is calculated to verify its correctness. The results show that, on the basis of satisfying constraint condition, the disk volume is reduced by 8.66% and the maximum equivalent stress is reduced by 10. 4% . The method can provide reference for the light-weight development of aeroengine turbine disk.

关 键 词：航空发动机 轮盘 辐板厚度 破裂裕度 破裂转速 等效应力 约束 体积 

分 类 号：V232[航空宇航科学与技术—航空宇航推进理论与工程]