Application of piezoelectric fiber composite actuator to aircraft wing for aerodynamic performance improvement  

作　　者：LI Min YUAN JunXian GUAN De CHEN WeiMin 

机构地区：[1]School of Aeronautics Science and Engineering, Beihang University, Beijing 100191, China [2]Key Laboratory of Environmental Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China

出　　处：《Science China(Technological Sciences)》2011年第2期395-402,共8页中国科学（技术科学英文版）

基　　金：supported by the Fundamental Research Funds for the Central Universities(Grant No.YWF-10-01-B05);the National Natural Science Foundation of China(Grant No.10772183);the Intellectual Innovation Project of the Chinese Academy of Sciences(Grant No.KJCX2-YW-L07)

摘　　要：The application of actuator made of piezoelectric material,particularly the advanced piezoelectric fiber composite due to the rapid development of smart materials and structures and active control technology in aviation and aerospace industry,to aircraft for performance enhancements such as flight control,aerodynamic force optimization,structure weight reduction,and overall aircraft design represents a new challenge to researches.It is considered as one of the key technologies for developing future flight vehicle.An approach with virtual control surface instead of conventional control surface to control aerodynamic force distribution and flight performance by use of piezoelectric fiber composite actuators distributed on wing surface is presented here.Particularly,the design and implementation of increasing lift force,providing roll maneuver,decreasing induced drag and wing root moment in different flight environments by the same structure control platform are studied.The control effect and sensitivity are examined quantitatively.Generally speaking,better control effect can be obtained by making better use of aeroelastic character to enlarge the actuation strain produced by piezoelectric material.

关 键 词：piezoelectric actuator piezoelectric fiber composite shape control aerodynamic characteristics morphing wing 

分 类 号：V224[航空宇航科学与技术—飞行器设计] TQ342.94[化学工程—化纤工业]