Deformation behavior of non-rigid airships in wind tunnel tests  

作　　者：Lingling LU Hongwei SONG Yiwei WANG Chenguang HUANG 

机构地区：[1]Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences [2]School of Engineering Science, University of Chinese Academy of Sciences

出　　处：《Chinese Journal of Aeronautics》2019年第3期611-618,共8页中国航空学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.11472276,11332011 and 11502268)

摘　　要：Deformation behavior of non-rigid airships in wind tunnel tests is studied by considering three factors, including internal pressure, flow velocity and angle of attack. Fiber Bragg grating strain sensors are used to measure the deformation of non-rigid airships. Wind tunnel tests in the case of different flow velocities and angles of attack are conducted. The measurement results reveal that the airship deformation is in proportion to internal pressure. For the tensile region,the airship deformation is in proportion to flow velocity. Effects of angle of attack on structural deformation are more complicated and there is no clear relationship existing between airship deformation and angle of attack.Deformation behavior of non-rigid airships in wind tunnel tests is studied by considering three factors, including internal pressure, flow velocity and angle of attack. Fiber Bragg grating strain sensors are used to measure the deformation of non-rigid airships. Wind tunnel tests in the case of different flow velocities and angles of attack are conducted. The measurement results reveal that the airship deformation is in proportion to internal pressure. For the tensile region,the airship deformation is in proportion to flow velocity. Effects of angle of attack on structural deformation are more complicated and there is no clear relationship existing between airship deformation and angle of attack.

关 键 词：Angle of ATTACK Fiber BRAGG GRATING sensor Flow velocity Internal pressure NON-RIGID AIRSHIP Wind tunnel test 

分 类 号：V[航空宇航科学技术]