声发射信号特征提取方法在复合材料层合板中的应用  

Application of Feature Extraction Method of Acoustic Emission Signals in Composite Laminates

作　　者：沈书乾 李伟[1] 龙飞飞 曹书铭 蒋鹏[1] 郭福平[1] 程丽华 SHEN Shu-qian;LI Wei;LONG Fei-fei;CAO Shu-ming;JIANG Peng;GUO Fu-ping;CHENG Li-hua(School of Mechanical Science and Engineering,Northeast Petroleum University;Maoming Inspection Institute,Guangdong Institute of Special Equipment Inspection and Research;College of Mechanical and Electrical Engineering,Dalian University for Nationalities;College of Chemical Engineering,Guangdong Institute of Petrochemical Technology)

机构地区：[1]东北石油大学机械科学与工程学院 [2]广东省特种设备检测研究院茂名检测院 [3]大连民族大学机电工程学院 [4]广东石油化工学院化学工程学院

出　　处：《化工机械》2021年第6期828-834,915,共8页Chemical Engineering & Machinery

摘　　要：将小波包能量谱分析法应用到碳纤维复合材料层合板(CFRP层合板)中,对CFRP层合板的落锤冲击实验过程进行分析,得到CFRP层合板在冲击实验时的损伤类型和各损伤阶段所呈现出来的声发射信号特征,实现材料损伤类型的判别。Having wavelet packet energy spectrum analysis method applied to carbon fiber composite laminates(CFRP laminates)was implemented to analyze drop weight impact test process of CFRP laminates so as to obtain damage types of the CFRP laminates in impact test and the acoustic emission signal characteristics in each damage stage and to identify material damage types.

关 键 词：复合材料层合板 CFRP 声发射信号特征提取方法 小波包能量谱分析法 落锤冲击实验 

分 类 号：TQ050.43[化学工程]