Abstract：In order to acquire the mode signal which is suitable for acoustic emission fault diagnosis on carbon fiber reinforced composite laminated plates, the 3D elastic theory and transfer matrix method were presented to get Lamb wave dispersion curves. An experimental platform was setup to test Lamb wave propagation property of carbon fiber reinforced composite laminated plate, and different acoustic emission signals were motivated through different pencil breakpoints. Wavelet scale spectrum and dispersion curves were used to separate different Lamb wave modes, and then the amplitude and energy attenuation characteristic were investigated respectively under different frequency. The experimental results show that, compared with other mode signals, the amplitude signal of S0 mode with low frequency has great advantage in the aspect of acoustic emission fault diagnosis on carbon fiber reinforced composite laminated plates because of its slower attenuation speed.
唐军君，卢文秀，李 峥，褚福磊. 碳纤维增强复合材料层合板Lamb波衰减特性研究[J]. 振动与冲击, 2016, 35(6): 75-79.
TANG Jun-jun，LU Wen-xiu，LI Zheng，CHU Fu-lei. The research of attenuation characteristics of Lamb wave on carbon fiber reinforced composite laminated plate. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(6): 75-79.
[1] 郝如江,卢文秀,褚福磊. 声发射检测技术用于滚动轴承故障诊断的研究综述[J]. 振动与冲击, 2008, 27(3): 75-79.
HAO Ru-jiang,LU Wen-xiu, CHU Fu-lei. Review of diagnosis of rolling element bearings defaults by means of acoustic emission technique[J]. Journal of Vibration and Shock, 2008, 27(3):75-79.
[2] Wang L, Yuan F G. Group velocity and characteristic wave curves of Lamb waves in composites: modeling and experiments[J]. Composites Science and Technology, 2007, 67(7): 1370-1384.
[3] 张晓虎,孟宇,张炜. 碳纤维增强复合材料技术发展现状及趋势[J]. 纤维复合材料, 2004(1): 50-53.
ZHANG Xiao-hu, MENG Yu, ZHANG Wei. The state of the art and trend of carbon fiber reinforced composites[J]. Fiber Composites, 2004(1): 50-53.
[4] 张恒萍. Lamb波在结构中的传播特性研究[D]. 南京：南京航空航天大学, 2006.
[5] 于金涛,丁明理. 复合材料声发射信号传播特性试验研究[J]. 电机与控制学报, 2012, 16(8): 107-112.
YU Jin-tao, DING Ming-li. Experimental research for propagation of acoustic emission signals across composites [J]. Electric Machines and Control, 2012, 16(8): 107-112.
[6] Nayfeh A H. Wave prpagation in layered anisotropic media with applications to composites[M]. Amsterdam: Elsevier, 1995.
[7] Purekar A S, Pines D J. Damage detection in thin composite laminates using piezoelectric phased sensor arrays and guided Lamb wave interrogation[J]. Journal of Intelligent Material Systems and Structures, 2010, 21(10): 995-1010.
[8] Dworakowski Z, Ambrozinski L, Packo P, et al. Application of artificial neural networks for compounding multiple damage indices in Lamb-wave-based damage detection[J]. Structural Control & Health Monitoring, 2015, 22(1): 50-61.
[9] Martinez-Jequier J, Gallego A, Suarez E, et al. Real-time damage mechanisms assessment in CFRP samples via acoustic emission Lamb wave modal analysis[J]. Composites Part B- engineering, 2015, 68:317-326.
[10] 潘旭峰,谢波,李晓雷. 小波变换理论及其在机械故障诊断中的应用[J]. 振动与冲击, 1998, 17(1): 14-19.
PAN Xu-feng, XIE Bo, LI Xiao-lei. Wavelet transform and its application in machinery diagnosis[J]. Journal of Vibration and Shock, 1998, 17(1): 14-19.
[11] Ciampa F, Meo M. A new algorithm for acoustic emission localization and flexural group velocity determination in anisotropic structures[J]. Composites Part A: Applied Science and Manufacturing, 2010, 41(12): 1777-1786.
[12] 陶顺兴,周晓军,张志刚. 基于复Morlet小波和系数相关的齿轮故障特征提取[J]. 机械科学与技术,2010, 29(5):642- 650.
TAO Shun-xing,ZHOU Xiao-jun, ZHANG Zhi-gang. On fault feature Extraction of a Gear by complex Morlet wavelet transform and coefficient correlation[J]. Mechanical Science and Technology for Aerospace Engineering, 2010, 29(5): 642-650.
