摘要
变弯度机翼前后缘结构技术在增升减阻、改善操控、降低噪声等方面有着良好的应用潜力,在欧美国家得到了长期重视和发展。本文介绍了变弯度机翼前后缘技术发展情况,以研发时间为轴线,就主要技术方向进行了阐述,并结合发展情况、技术途径和发展水平,对涉及的变弯度机翼前后缘结构的技术应用前景进行了初步分析。在此基础上,对国外变弯度机翼前后缘的部分技术指标进行了简要梳理,针对主要指标的未来需求、现实技术能力、发展路径等因素,初步量化提出了供我国变弯度机翼前后缘结构研究的牵引性指标。根据机翼后缘变弯度气动性能计算结果,对气动收益、起飞重量收益、燃油收益和航程收益分别进行了工程计算分析,初步验证了变弯度技术应用于背景飞机的显著价值。
Variable leading and trailing edge structure technology has huge potential in increasing lift and reducing drag,improving handling characteristics,reducing noise,etc.,and has been paid attention and developed in Europe and the United States in the last decades.This paper introduces the development of the variable leading and trailing edge structure.Main technical routines are illustrated and application prospect is preliminary analyzed in the paper.According to market and environment concerns,technical capacity and development routines,quantized requirement of the variable leading and trailing edge structure is brought up for relevant research in China.In order to validate the values of the variable leading and trailing edge structure,a business aircraft concept named CAE-AVM is selected as the background aircraft for the research.On the basis of the aerodynamic computation results,impacts of the aerodynamic benefits of the variable trailing edge design on the weight efficiency,fuel efficiency and range efficiency of the aircraft are studied,which shows that the result is fairly encouraging.
作者
李士途
艾俊强
任远春
周正光
李春鹏
Li Shitu;Ai Junqiang;Ren Yuanchun;Zhou Zhengguang;Li Chunpeng(AVIC The First Aircraft Design Institute,Xi’an 710089,China;AVIC Aerodynamics Research Institute,Shenyang 110034,China)
出处
《航空科学技术》
2022年第12期31-40,共10页
Aeronautical Science & Technology
关键词
变弯度
前后缘
发展前景
指标
经济性
variable camber
leading and trailing edge
application prospect
requirement
efficiency
