变弯度机翼技术发展研究

Research on Variable Camber Wing Technology Development

飞机变弯度机翼通过机翼前后缘变弯度机构和/或柔性结构变形驱动,根据飞行状态实时连续光滑调节机翼弯度,从而获得最优气动效率,进而实现飞机减阻、减重、降低燃油消耗等目的。随着新材料、新结构技术的发展,光滑连续变形结构已成为飞机未来发展方向。变弯度机翼涉及气动总体需求分析、轻质变形结构设计、柔性大变形可承载蒙皮、智能材料驱动器、分布式协同变形控制等关键技术,以关键技术为牵引进行变弯度技术研究,是未来变弯度机翼工程化应用的重要途径。

Variable camber wing is featured with continuous and smooth deflection in diverse flight conditions by mechanism and/or flexible actuation.This helps to acquire better aerodynamic efficiency,and achieve the drag,weight and fuel consumption reduction.With the development of new concept of material and structure technology,smoothly and continuously deformable structure has become the important trend,which involves a number of key technologies such as aerodynamic analysis,light-weight deformable structure design,largely deformable flexible skin,intelligent material actuator,collaboratively distributed deformation control,etc.Research of morphing driven by such key technologies is an important way for engineering application of variable camber wing in the future.