摘要
针对飞行器工程型号发展中的气动结构优化设计需求,提出和讨论了一种气动结构串行优化策略,将气动结构耦合优化问题分解成了气动外形优化和多工况下保持巡航气动性能的结构尺寸优化两个串行子问题。基于自研工具和商业软件MSCNastran建立了全自动的面向工程应用气动结构串行优化能力。开展了CRM-WB和HIRENASD机翼气动结构优化设计,同时取得了减阻和减重收益。结果表明所提策略具备一定的工程实用性,可在某种程度上解决飞行器型号发展中的气动结构优化设计需求。
A sequential strategy is proposed and discussed for industrial aero-structural optimization.It decomposes the aero-structural optimization into an aerodynamic shape optimization and a subsequent multipoint structural sizing optimization constrained by maintaining cruise aerodynamic performance.Using in-house tools and MSC Nastran,we established a fully automatic aero-structural optimization process for industrial applications.We used the established process to perform aero-structural optimization for CRM-WB and HIRENASD wings and realized reductions in both drag and weight.It shows thatthe proposed sequential strategy is feasible for industrial application and is capable of fulfilling the industrial requirements in aero-structural optimizations to some extent.
作者
李典
梁益华
刘峰博
周磊
王怡星
Li Dian;Liang Yihua;Liu Fengbo;Zhou Lei;Wang Yixing(Aeronautical Laboratory of Computational Fluid Dynamics,AVIC Xi’an Aeronautics Computing Technique Research Institute,Xi’an 710065,China;State Key Laboratory for Strength and Vibration of Mechanical Structures,School of Aerospace,Xi’an Jiaotong University,Xi’an 710049,China)
出处
《航空科学技术》
2019年第9期47-55,共9页
Aeronautical Science & Technology
关键词
气动结构
串行优化
伴随
气动弹性
型架
aero-structural
sequential optimization
adjoint
aeroelastics
jig shape
