In-flight health monitoring of a subscale wing using a fiber Bragg grating sensor system

被引:68
作者
Lee, JR
Ryu, CY
Koo, BY
Kang, SG
Hong, CS
Kim, CG
机构
[1] Korea Adv Inst Sci & Technol, Div Aerosp Engn, Yusong Gu, Taejon, South Korea
[2] Ecole Natl Super Mines, Dept Mech & Mat Engn, F-42023 St Etienne, France
[3] Donam Syst Inc, Taejon, South Korea
[4] Korea Aerosp Ind Ltd, Sachon City 664942, Kyungnam, South Korea
关键词
D O I
10.1088/0964-1726/12/1/317
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
In this paper, fiber Bragg gratings (FBGs) were applied to measure dynamic strains inside a subscale wing under real-time wind tunnel testing. Two re-coated FBGs were embedded in the wing skin. The FBG sensor system includes a wavelength swept fiber laser with a wavelength indicator and fast signal processing modules. The agreement among the three kinds of sensor inside the subscale wing (FBG, electric strain gauge and PZT sensor) was confirmed in the bench test. The optical fiber strain sensors had an excellent resolution (<5 muepsilon) in the time domain and could detect a frequency response up to 100 Hz. Through the wind tunnel test of the subscale smart wing, the flutter was experimentally detected using FBG sensors and their usefulness as an in-flight health monitoring system was demonstrated.
引用
收藏
页码:147 / 155
页数:9
相关论文
共 9 条
[1]   Optical fiber pressure sensors for adaptive wings [J].
Duncan, PG ;
Jones, ME ;
Shinpaugh, KA ;
Poland, SH ;
Murphy, KA ;
Claus, RO .
SMART SENSING, PROCESSING, AND INSTRUMENTATION - SMART STRUCTURES AND MATERIALS 1997, 1997, 3042 :320-331
[2]  
HEEG J, 1993, 3241 NASA
[3]   Buckling behavior monitoring of composite wing box model using fiber Bragg grating sensor system [J].
Hong, CS ;
Ryu, CY ;
Lee, JR ;
Kim, CG .
SMART STRUCTURES AND MATERIALS 2001: SMART STRUCTURES AND INTEGRATED SYSTEMS, 2001, 4327 :660-668
[4]   Multiplexing optical fiber-based pressure sensors for smart wings [J].
Jones, ME ;
Duncan, PG ;
Crotts, R ;
Shinpaugh, K ;
Grace, JL ;
Murphy, KA ;
Claus, RO ;
Pulliam, WJ ;
Schetz, JA .
DISTRIBUTED AND MULTIPLEXED FIBER OPTIC SENSORS VI, 1996, 2838 :230-236
[5]  
KOO BY, 2000, P ACCM, V2000, P1147
[6]  
Lee J. R., 2002, J KSCM, V15, P30
[7]   FORMATION OF BRAGG GRATINGS IN OPTICAL FIBERS BY A TRANSVERSE HOLOGRAPHIC METHOD [J].
MELTZ, G ;
MOREY, WW ;
GLENN, WH .
OPTICS LETTERS, 1989, 14 (15) :823-825
[8]  
MOREY WW, 1991, P SOC PHOTO-OPT INS, V1586, P216
[9]  
SANFORD MC, 1975, R450 NASA