### 客机机翼环量分布的气动/结构一体化设计

1. 1. 西北工业大学 航空学院, 陕西 西安 710072;
2. 中航工业第一飞机设计研究院, 陕西 西安 710089
• 收稿日期:2013-03-20 修回日期:2013-05-12 出版日期:2013-12-25 发布日期:2013-05-17
• 通讯作者: 白俊强，Tel.：029-88492174E-mail：junqiang@nwpu.edu.cn E-mail:junqiang@nwpu.edu.cn
• 作者简介:巨龙男，硕士研究生。主要研究方向：飞行器总体及气动结构设计，飞行器气动学科优化。Tel：029-88492174E-mail：jayjulong@126.com；白俊强男，博士，教授，博士生导师。主要研究方向：飞行器总体及气动设计，计算流体力学，多学科优化。Tel：029-88492174E-mail：junqiang@nwpu.edu.cn

### Integrated Aero-structure Design of Circulation Distribution for Commercial Aircraft Wing

JU Long1, BAI Junqiang1, SUN Zhiwei1, CHEN Song1, LI Quan2

1. 1. College of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China;
2. AVIC The First Aircraft Institute, Xi'an 710089, China
• Received:2013-03-20 Revised:2013-05-12 Online:2013-12-25 Published:2013-05-17

Abstract:

This paper deals with the design rule of commercial aircraft circulation distribution by establishing a NAND (Nested Analysis and Design) formulation. The approach incorporates an aero-structural analysis solver. A method is developed to estimate the wing weight based on fundamental structural principles. The aerodynamic solver is based on the full potential equation with viscosity modification. In order to find the most economical aerodynamic circulation distribution for a commercial aircraft this paper uses range as the object for this formulation. Finally an aerodynamic circulation distribution is found which enhances the aerodynamic resistance and flight distance respectively by 5% and 100 km. The conclusion is made that although elliptical circulation is best for aerodynamic characteristics, it may not be the best for civil aircraft design because of increasing structure weight.This conclusion can serve as a reference during civil aircraft wing design.