TY - GEN
T1 - Localization of Hypervelocity Impact- Engendered Damage in Stiffened Curved Structures Using In-Situ Acoustic Emission
AU - Huang, Ye Fei
AU - Cao, Wu Xiong
AU - Pang, Bao Jun
AU - Chi, Run Qiang
AU - Cai, Yuan
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/4/4
Y1 - 2019/4/4
N2 - Pervasive in Earth' orbit, hypervelocity impact (HVI), caused by micrometeoroids and orbital debris (MMOD), poses an immense threat to the safety and integrity of spacecraft, leading to the failure and fragmentation of the entire spacecraft structures. Addressing such an issue, HVI-induced damage in space structures is localized using in-situ acoustic emission (AE). However, conventional AE localization techniques in the stiffened curved structures require either the knowledge of the direction dependent velocity profile or a dense array of sensors, due to the attenuation and anisotropic-like propagation of AE signals. In this work, a new approach of area localization is proposed to locate the HVI-induced acoustic source in large-scale anisotropic-like plates with a sparse array of sensors, and without knowing the direction dependent velocity profile in the plate. On this basis, the impact spot can be precisely located.
AB - Pervasive in Earth' orbit, hypervelocity impact (HVI), caused by micrometeoroids and orbital debris (MMOD), poses an immense threat to the safety and integrity of spacecraft, leading to the failure and fragmentation of the entire spacecraft structures. Addressing such an issue, HVI-induced damage in space structures is localized using in-situ acoustic emission (AE). However, conventional AE localization techniques in the stiffened curved structures require either the knowledge of the direction dependent velocity profile or a dense array of sensors, due to the attenuation and anisotropic-like propagation of AE signals. In this work, a new approach of area localization is proposed to locate the HVI-induced acoustic source in large-scale anisotropic-like plates with a sparse array of sensors, and without knowing the direction dependent velocity profile in the plate. On this basis, the impact spot can be precisely located.
KW - Acoustic emission (AE)
KW - Area localization
KW - Complex structure
KW - Hypervelocity impact (HVI)
UR - https://www.scopus.com/pages/publications/85064735667
U2 - 10.1109/SPAWDA.2019.8681877
DO - 10.1109/SPAWDA.2019.8681877
M3 - 会议稿件
AN - SCOPUS:85064735667
T3 - Proceedings of the 2019 13th Symposium on Piezoelectrcity, Acoustic Waves, and Device Applications, SPAWDA 2019
BT - Proceedings of the 2019 13th Symposium on Piezoelectrcity, Acoustic Waves, and Device Applications, SPAWDA 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 13th Symposium on Piezoelectrcity, Acoustic Waves, and Device Applications, SPAWDA 2019
Y2 - 11 January 2019 through 14 January 2019
ER -