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| 用于变体翼梢小翼的伸缩栅格研究 | |
| 引用本文： | 李伟,熊克,陈宏,王帮峰,顾蕴松.用于变体翼梢小翼的伸缩栅格研究[J].航空学报,2011,32(10):1796-1805. |
| 作者姓名： | 李伟 熊克 陈宏 王帮峰 顾蕴松 |
| 作者单位： | 1. 南京航空航天大学机械结构强度与振动国家重点实验室,江苏南京,210016 2. 中国商飞上海飞机设计研究院结构部,上海,200232 3. 南京航空航天大学空气动力学系,江苏南京,210016 |
| 基金项目： | 国家自然科学基金(90605003)~~ |
| 摘 要： | 翼梢小翼能抑制翼尖涡流形成、降低机翼的诱导阻力,翼梢小翼的高度是对减阻效果影响较大的参数之一.传统翼梢小翼仅针对巡航状态设计,而在起降、爬升等非设计状态减阻效果不佳.变体翼梢小翼能根据飞行状态主动改变几何外形和尺寸,实时优化减阻效果.为了实现变形,设计了一种用于变体翼梢小翼的伸缩栅格,通过步进电机驱动,可使翼梢小翼的高... |
| 关 键 词： | 变体翼梢小翼 伸缩栅格 小翼的高度 计算流体力学 风洞试验 增升 减阻 |
| 收稿时间： | 2011-01-14; |
Research of Retractable Grid Applied to Morphing Winglet |
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| LI Wei,XIONG Ke,CHEN Hong,WANG Bangfeng,GU Yunsong.Research of Retractable Grid Applied to Morphing Winglet[J].Acta Aeronautica et Astronautica Sinica,2011,32(10):1796-1805. | |
| Authors: | LI Wei XIONG Ke CHEN Hong WANG Bangfeng GU Yunsong |
| Institution: | LI Wei1,XIONG Ke1,CHEN Hong2,WANG Bangfeng1,GU Yunsong3 1.State Key Laboratory of Mechanics and Control for Mechanical Structures,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China 2.Department of Aircraft Structure,Shanghai Aircraft Design and Research Institute,Shanghai 200232,China 3.Department of Aerodynamics,China |
| Abstract: | Winglets can inhibit the formation of wingtip vortices and reduce the induced drag.The height of a winglet is one of the most critical parameters in drag reduction efficiency.Current winglet designs are typically optimized for cruise conditions.But they are inefficient in off-design conditions,such as takeoff,climb and landing.Morphing winglets can optimize the drag reduction efficiency through changing their geometric dimensions during flight.This paper investigates a retractable grid for morphing winglets... |
| Keywords: | morphing winglet retractable grid the height of the winglet computational fluid dynamics wind tunnel test lift improvement drag reduction |
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