基于ABAQUS的Lamb波椭圆法探伤的仿真分析
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摘要
以厚4 mm的铝板作为研究对象,研究了兰姆(Lamb)波在铝板中的传播问题。该文结合椭圆法的损伤定位原理和ABAQUS仿真软件对Lamb波在铝板中的传播方式进行研究。通过设置观测点并采集该点Lamb波的信号,计算出健康铝板与损伤铝板的差信号;结合Lamb波的频散特性计算出Lamb波的传播距离,从而定位缺陷位置。研究表明了基于椭圆法的铝板损伤识别的有限元模拟的准确性与可行性。
The propagation of Lamb wave in an aluminium sheet with a thickness of 4 mm was studied in this work. The propagation mode of Lamb wave in aluminium sheet is studied by combining the damage location principle of ellipse method and ABAQUS simulation software. By setting the observation point and collecting the signals of the Lamb wave at that point, the difference signal between the healthy aluminum sheet and the damaged aluminum sheet is calculated, and the propagation distance of the Lamb wave is calculated by combing the dispersion characteristics of the Lamb wave, thereby locating the defect position.The study verifies the accuracy and feasibility of finite element simulation of aluminum plate damage identification based on?Elliptical method.
The propagation of Lamb wave in an aluminium sheet with a thickness of 4 mm was studied in this work. The propagation mode of Lamb wave in aluminium sheet is studied by combining the damage location principle of ellipse method and ABAQUS simulation software. By setting the observation point and collecting the signals of the Lamb wave at that point, the difference signal between the healthy aluminum sheet and the damaged aluminum sheet is calculated, and the propagation distance of the Lamb wave is calculated by combing the dispersion characteristics of the Lamb wave, thereby locating the defect position.The study verifies the accuracy and feasibility of finite element simulation of aluminum plate damage identification based on?Elliptical method.
引文
[1] 阎石,张海凤,蒙彦宇. 利用Lamb波的薄板结构多点损伤识别试验[J].沈阳建筑大学学报(自然科学版),2010,26(4):777-782.
[2] 邵泽波,刘兴德.无损检测[M]. 北京:化学工业出版社,2011:37-39.
[3] 刘增华,徐营赞,何存富,等. 板状结构中基于Lamb波单模态的缺陷成像试验研究[J]. 工程力学,2014,31(4):232-238.
[4] 陈军,李志浩,林莉,等.铝板中Lamb波检测的实验研究[J]. 应用声学,2011,30(2):98-104.
[5] 彭鸽,袁慎芳. 基于主动Lamb波和小波变换的二维结构损伤定位研究[J]. 振动工程学,2004,17(4): 488-493.
[6] 李刚,石立华,袁慎芳,等. 基于预置压电阵列的Lamb波检测技术研究[J]. 压电与声光,2008,30(3):363-368.LI Gang,SHI Lihua, YUAN Shengfang,et al.Research on Lamb wave detecting technique based on prefabricated PZT sensor array[J].Piezoelectrics & Acoustooptics, 2008,30(3):363-368.
[7] 彭甜.基于PZT的Lamb波法金属结构损伤识别研究[D]. 武汉:武汉理工大学,2015.
[8] CAWLEY P,ALLEYNE D.The use of Lamb waves for the long range inspection of large structures[J].Ultrasonics,1996, 34(2/5):287-290.
[9] ZIENKIEWICZ O C, CHEUNG Y K.The finite element method in structural and continuum mechanics:numerical solution of problems in structural and continuum mechanic[J]. London Mc Graw-Hill Publishing Co, Ltd,1967:231-233.
[10] 王助成,邵敏.有限元法基本原理和数值方法[M].北京:清华大学出版社,2001.
[11] 董彦磊.Lamb波在板中缺陷检测的有限元模拟和实验研究[D].成都:电子科技大学,2013.
[12] MACE B R, MANCONIC E.Modeling wave propagation in two-dimensional structures using finite element analysis[J]. Journal of Sound and Vibration, 2008, 318: 884-892.
[2] 邵泽波,刘兴德.无损检测[M]. 北京:化学工业出版社,2011:37-39.
[3] 刘增华,徐营赞,何存富,等. 板状结构中基于Lamb波单模态的缺陷成像试验研究[J]. 工程力学,2014,31(4):232-238.
[4] 陈军,李志浩,林莉,等.铝板中Lamb波检测的实验研究[J]. 应用声学,2011,30(2):98-104.
[5] 彭鸽,袁慎芳. 基于主动Lamb波和小波变换的二维结构损伤定位研究[J]. 振动工程学,2004,17(4): 488-493.
[6] 李刚,石立华,袁慎芳,等. 基于预置压电阵列的Lamb波检测技术研究[J]. 压电与声光,2008,30(3):363-368.LI Gang,SHI Lihua, YUAN Shengfang,et al.Research on Lamb wave detecting technique based on prefabricated PZT sensor array[J].Piezoelectrics & Acoustooptics, 2008,30(3):363-368.
[7] 彭甜.基于PZT的Lamb波法金属结构损伤识别研究[D]. 武汉:武汉理工大学,2015.
[8] CAWLEY P,ALLEYNE D.The use of Lamb waves for the long range inspection of large structures[J].Ultrasonics,1996, 34(2/5):287-290.
[9] ZIENKIEWICZ O C, CHEUNG Y K.The finite element method in structural and continuum mechanics:numerical solution of problems in structural and continuum mechanic[J]. London Mc Graw-Hill Publishing Co, Ltd,1967:231-233.
[10] 王助成,邵敏.有限元法基本原理和数值方法[M].北京:清华大学出版社,2001.
[11] 董彦磊.Lamb波在板中缺陷检测的有限元模拟和实验研究[D].成都:电子科技大学,2013.
[12] MACE B R, MANCONIC E.Modeling wave propagation in two-dimensional structures using finite element analysis[J]. Journal of Sound and Vibration, 2008, 318: 884-892.