测控技术2017，Vol.36Issue(12)：20-23,28,5.
基于HHT的复合材料层合板结构损伤识别
Structural Damage Identification of Composite Plate Based on HHT
摘要
Abstract
Aiming at the structural health monitoring of aircraft composite plates,a new method of extracting structural damage identification based on the Hilbert-Huang transform (HHT) is developed.The Hilbert energy marginal spectrum of the signal of dynamic response is used to abstract damage characteristics,which can reflect the signal energy variation to identify the structural damage.The FBG(fiber Bragg grating) acceleration sensor is used to collect the data.The signal energy of intact and damaged composite plate is compared to implement the identification of small structural damage.Resuhs from composites test reveal that the constructed structural damage feature index has good sensitivity and practicality in the structural health monitoring of timevarying signal.关键词
HHT/信号能量变化量/复合材料层合板/FBG传感器/损伤识别Key words
Hilbert-Huang transform/signal energy variation/composite plate/FBG sensor/damage identification分类
航空航天引用本文复制引用
华林,康建雄,王富生,刘军,岳珠峰..基于HHT的复合材料层合板结构损伤识别[J].测控技术,2017,36(12):20-23,28,5.基金项目
国家自然科学基金资助项目(51475369) （51475369）
