客机机翼气动/结构多学科优化方法  

Multidisciplinary Optimization of Transport Wing Aerodynamic/Structural Integrated Design

作　　者：胡婕[1] 王如华[2] 王稳江[2] 余雄庆[1] 

机构地区：[1]南京航空航天大学飞行器先进设计技术国防重点学科实验室,南京210016 [2]中国商飞上海飞机设计研究院,上海200232

出　　处：《南京航空航天大学学报》2012年第4期458-463,共6页Journal of Nanjing University of Aeronautics & Astronautics

摘　　要：针对客机机翼特点,建立机翼外形和结构参数化模型;应用CATIA二次开发技术和PCL编程,实现气动分析模型和结构有限元模型的自动生成;分析了气动和结构之间的耦合关系,研究一种气动载荷自动加载到结构模型的方法;应用基于代理模型的二级优化方法求解机翼气动/结构设计多学科优化问题;在iSIGHT软件环境下实现机翼气动/结构多学科优化计算流程。算例结果表明,本文提出的机翼气动/结构多目标优化方法能获得关于升阻比和结构重量的最优解集,有助于设计人员确定合理的机翼总体参数。The auto-generation of aerodynamic analysis model and structural finite element model is implemented by using the CATIA software API method and Patran command language （PCL）. An approach for mapping the aerodynamic load to the structural models is proposed based on the interaction analysis of aerodynamic and structure. The two-level optimization method based on the surrogate model is used to solve the problems of integrated aerodynamic/structural design of wings for transport aircraft. The computation process is implemented by software iSIGHT. An example shows that the approach for the proposed transport wing aerodynamic/structural design can find the optimal solution set for high liftdrag ratio and low structure weight, and assist the designers to determine most reasonable wing parameters.

关 键 词：机翼 多学科设计优化 气动 结构 

分 类 号：V221[航空宇航科学与技术—飞行器设计]