考虑客货舱布置约束的BWB机身剖面优化设计  

Optimal Design on BWB Body Profile under Cabin and Cargo Arrangement Constraints

作　　者：夏明 龚国敬 黄涛 袁昌运 XIA Ming;GONG Guo jing;HUANG Tao;YUAN Chang yun(Beijing Aeronautical Science and Technology Research Institute,COMAC,Beijing 102211,China;China Southern Airlines,Guangzhou 510406,China)

机构地区：[1]中国商飞北京民用飞机技术研究中心,北京102211 [2]中国南方航空股份有限公司,广州510406

出　　处：《航空计算技术》2019年第4期27-30,共4页Aeronautical Computing Technique

基　　金：中国商飞公司科技创新专项项目资助(Y17GS01)

摘　　要：针对翼身融合布局(Blended Wing Body,BWB)客机中央机身剖面翼型,采用CST参数化方法,结合遗传算法,在Optimus优化平台中搭建针对中央机身翼型的气动设计优化框架。针对中央机身的两处剖面翼型,根据客货舱对机身高度的布置约束,确定不同的优化目标与优化条件,进行气动优化设计。优化设计后的中央机身翼型在满足客货舱的装载高度以及气动设计要求的同时,改善了升阻特性并提供了一定的抬头力矩。研究所建立的翼型优化平台可为BWB民机翼型设计提供优化手段,并可用于其他构型的翼型设计。In aerodynamic design of cross-section airfoil of blended wing body(BWB)center body,an airfoil aerodynamic optimization system is proposed based on the class function/shape function transformation(CST) parameterization method and the genetic algorithm in Optimus.On the dependence of height constraints of the cabin and cargo for the BWB civil transport,the optimal objectives and constraints are derived respectively.The optimized center body airfoils generate the demanding pitch up moment for BWB,with thickness and L/D meeting design conditions.The proposed optimization framework in the paper provides an efficient tool for the airfoil design of BWB,which could be further applied to airfoil design under various configurations.

关 键 词：翼身融合布局 CST参数化 客货舱 翼型 OPTIMUS 

分 类 号：V223[航空宇航科学与技术—飞行器设计]