Research on disruptive design pre-identification in the preliminary design phase of aero engine flow pass multidisciplinary optimization

作     者：Shaojing DONG Yufan FANG Wentong HU Xiuli SHEN Gaoxiang CHEN Shaojing DONG;Yufan FANG;Wentong HU;Xiuli SHEN;Gaoxiang CHEN

作者机构：School of Energyand Power EngineeringBeihang UniversityBeijing 10083China Beijing Key Laboratory of Aero-Engine Structure and StrengthBeihang UniversityBejing 100083China Jiangxi Research InstituteBeihang UniversityNanchang 330096China Navigation and Control Technology Research Institute of China Ordnance IndustriesBeijing 100089China Research Institute of Aero-engineBeihang UniversityBeijing 100083China 

出 版 物：《Chinese Journal of Aeronautics》 (中国航空学报（英文版）)

年 卷 期：2022年第35卷第11期

页      面：264-276页

核心收录：

学科分类：08[工学] 082502[工学-航空宇航推进理论与工程] 0802[工学-机械工程] 0835[工学-软件工程] 0714[理学-统计学（可授理学、经济学学位）] 0825[工学-航空宇航科学与技术] 0701[理学-数学] 

主　　题：Aero engine Disruptive design Flow pass multidisciplinary optimization Pre-identification Preliminary design phase 

摘      要：In aero engine design, determining whether the preliminary design will have disruptive effects on the detailed design is the key to multidisciplinary design optimization in the preliminary design stage. In order to adapt to the non-orthogonal parameter value range caused by the selfconstrained parametric modeling method, a non-orthogonal space mapping method that maps the optimal Latin hypercube sampling points of the traditional orthogonal design space to the non-orthogonal design space is proposed. Based on the logical regression method in machine learning field, a kind of feasible domain boundary identification method is employed to identify whether the sample spatial response meets the relevant criteria. The method proposed in this paper is used to identify and analyze the key technologies of the high-pressure turbine mortise joint structure. It is found that the preliminary design of the aero engine may lead to the failure to obtain a mortise joint structure meeting the design requirements in the detailed design stage. The mortise joint structure needs to be pre-optimized in the preliminary design stage.