大展弦比机翼翼梢装置性能特性研究  

Performance characteristics study on wingtip device of high aspect ratio wing

作　　者：王超 吕莉莉 杜麦胜 刘毅 

机构地区：[1]中航飞机股份有限公司研发中心总体气动设计研究所,陕西汉中723000

出　　处：《飞行力学》2015年第1期13-16,共4页Flight Dynamics

摘　　要：针对大展弦比机翼的四发涡桨飞机巡航速度较低、巡航升力系数较大的缺点,通过加装不同的翼梢装置改善翼尖流场特性,从而提高升阻比,提升飞机起飞性能、爬升性能和续航性能。计算结果表明,翼梢装置可有效提高大展弦比机翼飞机的飞行性能,为进一步优化翼梢装置提供了技术基础。Aircraft with four turbo-propeller engines is characterized by low speed and relative high cruise lift coefficient. Different wing tip devices were utilized to improve the flow condition around wing tips and increase the lift-to-drag ratio,thus improving the takeoff performance,climb performance and endurance performance. The calculation results indicate the wing tip device can effectively improve the flight characteristics of plane with high aspect ratio wing,thus providing technical basis for further optimization of the wing tip device.

关 键 词：大展弦比机翼 翼梢装置 升阻比 优化 飞行性能 

分 类 号：V212.1[航空宇航科学与技术—航空宇航推进理论与工程]