摘要
以ANSYS软件为平台,基于双向渐进结构优化法对所提出的等强度风扇叶片的内部结构形式进行探索性研究,在对叶片内部结构进行拓扑优化的过程中提出了中面应力基准法,简化了优化模型,同时有针对性的解决了双向渐进结构优化法在应用中的一些技术问题,实现了等强度风扇叶片内部结构的优化,获得了内部结构的拓扑形式.所得结果可为发动机轻量化设计提供参考.
A research on the internal structure of the blade with equal strength was pressented.The research was based on bi-directional evolutionary structural optimization（BESO） method and ANSYS platform.In the topology optimization process of the internal structure of the blade,a method of stress reference on middle face was proposed to simplify the optimization model.Some special technical problems in the application of BESO were also solved.Finally,an optimized topological form of internal structure of the fan blade with equal strength was obtained.The results can provide a reference for the lightweight design of the aero-engine.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
2012年第10期2329-2335,共7页
Journal of Aerospace Power
关键词
航空发动机风扇叶片
等强度
轻量化设计
拓扑优化
双向渐进结构优化法
aero-engine fan blades
equal strength
light weight design
topology optimization
BESO（bi-directional evolutionary structural optimization） method
