基于HHT的预应力钢筋混凝土梁断裂AE信号分析
AE Signal Analysis of the Cracking Process in Pre-stressed Concrete Beams Based on HHT
摘 要
针对混凝土材料损伤所产生的声发射信号复杂的特点, 提出了基于Hilbert-Huang变换的分析混凝土声发射信号的新方法。利用全波形声发射技术记录了预应力混凝土梁在三点弯曲荷载试验下整个破坏过程的声发射信号, 研究了声发射累计能量随时间变化的关系曲线, 分析了梁在不同破坏阶段产生的实测声发射信号, 获得了信号的Hilbert谱。通过与小波分析结果进行比较, 显示出该方法具有处理精度高、自适应性强的特点, 能有效地提取声发射信号中损伤的主要特征, 为声发射信号处理提出了一种新的途径。
Hilbert-Huang变换
全波形分析
预应力钢筋混凝土
Acoustic emission testing
Hilbert-Huang transform
Waveform analysis
Pre-stressed concrete
Abstract
A series of pre-stressed concrete beams were loaded in three points bending until failure. The waveforms of acoustic emission signals were recorded. Based on the results of the relationship between the cumulative energy of acoustic emission and time, a new signal processing method based on Hilbert-Huang transform was proposed to analyze AE signals obtained in concrete. And the real AE signals got from different failure stages of the beams were studied. The comparison between Hilbert spectrum and the same result from wavelet transform method was made. The results showed that this method had high accuracy and strong self-adaptability. It could extract the main characteristics of the AE signal, and gave us a new method for AE signal processing.
中图分类号 TU528.07 TG115.28
所属栏目 科研成果与学术交流
基金项目 江苏省“六大人才高峰”计划项目资助(1721190050); 国家自然科学基金资助项目(10672068)
收稿日期 2008/4/23
修改稿日期
网络出版日期
作者单位点击查看
备注刘红光(1981-), 男, 助理实验师, 工学硕士, 从事无损检测信号处理技术的研究。
引用该论文: LIU Hong-Guang,LUO Ying. AE Signal Analysis of the Cracking Process in Pre-stressed Concrete Beams Based on HHT[J]. Nondestructive Testing, 2009, 31(4): 264～268
刘红光,骆英. 基于HHT的预应力钢筋混凝土梁断裂AE信号分析[J]. 无损检测, 2009, 31(4): 264～268
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】袁振明,马羽宽,何泽云.声发射技术及其应用[M].北京: 机械工业出版社,1985: 1-4.
【2】王余刚,骆 英,柳祖亭.全波形声发射技术用于混凝土材料损伤监测研究[J].岩石力学与工程学报,2005,24(5): 803-807.
【3】陈玉华,刘时风,耿荣生,等.声发射信号的谱分析和相关分析[J].无损检测,2002,24(9): 395-399.
【4】Norden E Huang, Zheng Shen. The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis[J]. Proc Royal Society of London Series,1998,454: 903-995.
【5】Hongbo Xie, Zhizhong Wang. Mean frequency derived via Hilbert-Huang transform with application to farigue EMG signal analysis[J]. Computer Methods and Programs in Biomedicine,2006,82: 114-120.
【6】Ramesh Babu, Srikanth S, Sekhar A S. Hilbert-Huang transform for detection and monitoring of crack in a transient rotor[J]. Mechanical Systems and Signal Processing,2008,22(4): 905-914.
【2】王余刚,骆 英,柳祖亭.全波形声发射技术用于混凝土材料损伤监测研究[J].岩石力学与工程学报,2005,24(5): 803-807.
【3】陈玉华,刘时风,耿荣生,等.声发射信号的谱分析和相关分析[J].无损检测,2002,24(9): 395-399.
【4】Norden E Huang, Zheng Shen. The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis[J]. Proc Royal Society of London Series,1998,454: 903-995.
【5】Hongbo Xie, Zhizhong Wang. Mean frequency derived via Hilbert-Huang transform with application to farigue EMG signal analysis[J]. Computer Methods and Programs in Biomedicine,2006,82: 114-120.
【6】Ramesh Babu, Srikanth S, Sekhar A S. Hilbert-Huang transform for detection and monitoring of crack in a transient rotor[J]. Mechanical Systems and Signal Processing,2008,22(4): 905-914.
相关信息
