Design and experiment of concentrated flexibility-based variable camber morphing wing  

作　　者：Yuzhu LI Wenjie GE Jin ZHOU Yonghong ZHANG Donglai ZHAO Zhuo WANG Dianbiao DONG 

机构地区：[1]School of Mechanical Engineering,Northwestern Polytechnical University,Xi’an 710072,China [2]School of Aeronautic Science and Engineering,Beihang University,Beijing 100083,China

出　　处：《Chinese Journal of Aeronautics》2022年第5期455-469,共15页中国航空学报（英文版）

基　　金：supported by National Natural Science Foundation of China(No.50975230);Natural Science Basic Research Plan in Shaanxi Province of China(No.2017JM500);National Natural Science Foundation of China(No.51375383)。

摘　　要：The morphing wing has a significant positive effect on the aerodynamic performance of the aircraft.This paper describes a leading-edge of variable camber wing with concentrated flexibility based on the geared five-bar mechanism.The driving points of morphing skin formed by the glass fibre composite sheet were optimized to make the skin deformation smooth.A geared fivebar kinematic mechanism rigidly connected to the skin was proposed to drive the leading-edge deformation.Besides,a new kind of concentrated flexure hinge was designed using the pseudorigid-body method and applied to the joint between the rigid mechanism and the skin.Finally,the leading-edge prototypes with traditional hinges and flexure hinges were produced,respectively.The feasibility of the concentrated flexibility leading-edge was verified through the comparative experiments of ground deformation.Simultaneously,aerodynamic analysis was carried out to compare the concentrated flexure leading-edge wing with the original airfoil.

关 键 词：AIRCRAFT Concentrated flexure hinge LEADING-EDGE Morphing wing Pseudo-rigid-body model 

分 类 号：V224[航空宇航科学与技术—飞行器设计]