低信噪比下针对平板结构冲击的快速定位算法

PDF(1751 KB)

振动与冲击 ›› 2023, Vol. 42 ›› Issue (10) : 180-187.

论文

彭涛1,2，崔立林1,2，黄秀峰1,2，徐荣武1,2，余文晶1,2，程果1,2

作者信息 +

Fast localization algorithm for impact of flat plate structure under low SNR

PENG Tao1,2,CUI Lilin1,2,HUANG Xiufeng1,2,XU Rongwu1,2,YU Wenjing1,2,CHENG Guo1,2

Author information +

文章历史 +

摘要

为实现低信噪比(signal-to-noise ratio,SNR)条件下平板结构受到冲击后的快速准确定位，本文首先结合集合经验模态分解(ensemble empirical mode decomposition, EEMD)和希尔伯特变换，从冲击信号中提取弯曲波模态分量。利用Hilbert包络线第一峰值作为弯曲波到达时间，将不同传感器到达时间差作为特征构建数据库。其次利用平板结构中传感器信号能量分布准则判断初始的定位区域。最后计算划分网格的特征残差，实现冲击位置的快速定位。经过平板敲击实验验证：在信噪比为5dB和 0dB情况下，本文算法与基于广义互相关（generalized cross correlation，GCC）和信号阈值的定位算法的定位误差分别为0.08m、0.17m、0.18m和0.13m、0.26m、0.28m，说明本文算法具有更好的抗噪性能和更高的定位精度。

Abstract

In order to achieve fast and accurate location of flat plate structure under low signal-to-noise ratio(SNR), this paper firstly combines ensemble empirical mode decomposition and Hilbert transform to extract modal component of curved wave from impact signal. The first peak value of Hilbert envelope is used as the arrival time of bending wave, and the arrival time difference of different sensors is used as the feature to construct the database. Secondly, the initial location area is determined by the energy distribution criterion of sensor signal in the plate structure. Finally, the characteristic residuals are calculated to realize the fast location of impact location. It is verified by plate knock experiment that when SNR=5dB and SNR=0dB, the positioning errors of the proposed algorithm and the positioning algorithm based on GCC and signal threshold are 0.08m, 0.17m, 0.18m and 0.13m, 0.26m, 0.28m respectively, indicating that the proposed algorithm has better anti-noise performance and higher positioning accuracy.

关键词

集合经验模态分解(EEMD) / Hilbert包络 / 时延估计 / 特征数据库

引用本文

EndNote

Ris (Procite)

Bibtex

导出引用

彭涛1,2，崔立林1,2，黄秀峰1,2，徐荣武1,2，余文晶1,2，程果1,2. 低信噪比下针对平板结构冲击的快速定位算法[J]. 振动与冲击, 2023, 42(10): 180-187

PENG Tao1,2,CUI Lilin1,2,HUANG Xiufeng1,2,XU Rongwu1,2,YU Wenjing1,2,CHENG Guo1,2 . Fast localization algorithm for impact of flat plate structure under low SNR[J]. Journal of Vibration and Shock, 2023, 42(10): 180-187

参考文献

[1] 孟剑林,陈若宇,黄港婷等.低信噪比下松动部件的检测方法[J].振动、测试与诊断,2020,40(2):222-229.
    MENG Jianlin, CHEN Ruoyu, HUANG Gangting et al. Researches on loose parts detection method with low signal noise ratio [J]. Journal of vibration, measurement & diagnosis,2020,40(2):222-229.
[2] 范志涵,张宇,芮小博.航天器舱壁结构碎片撞击声发射定位技术研究[J].仪器仪表学报,2020,41(01):178-184.
    FAN Zhihan, ZHANG Yu, RUI. Xiaobo. Research on space debris impact location of spacecraft bulkhead structure based on the acoustic emission technique [J]. Chinese journal of scientific instrument,2020,41(01):178-184.
[3] 李翱,陈海波,钟强等.正交各向异性层合板壳耦合结构的能量传递特性[J].振动与冲击,2022,41(05):9-19.
    LI Ao, CHEN Haibo, ZHONG Qiang et al. Energy transfer characteristics of orthotropic laminated plate-shell coupled structure [J]. Journal of Vibration and Shock,202,41(05):9-19.
[4] 肖俊恒,闫子权,孙林林等.弯曲波对钢轨振动特性测试的影响研究[J].振动与冲击,2021,40(01):151-156.
    XIAO Junheng, YAN Ziquan, SUN Linlin et al. Effects of bending wave on measurement of rail vibration characteristics [J].Journal of Vibration and Shock, 201,40(01):151-156.
[5] 陈思博,潘晓文,刘金福.基于偏最小二乘法分形计盒维数的冲击定位方法[J].振动与冲击,2021,40(02):97-102.
    CHEN Sibo, PAN Xiaowen, LIU Jinfu. Impact localization method based on the partial least squares regression fractal dimension [J].Vibration and Shock, 201,40(02):97-102.
[6] 曹亮,王景霖,何召华等.光纤光栅传感网络的冲击定位方法[J].振动.测试与诊断,2017,37(03):456-461.
    CAO Liang, WANG Jinglin, HE Zhaohua et al. Impact localization method based on the partial least squares regression fractal dimension [J].Vibration. Measurement & diagnosis,2017,37(03):456-461.
[7] 刘圆圆. 基于兰姆波的板状结构声源定位技术研究[D].天津大学,2018.
    LIU Yuanyuan. Research on Plate Structure Sound Source location Technology based on Lamb Wave [D]. Tianjin University,2018.
[8] 周邵萍,郝占峰,韩红飞,张佳程,章兰珠.基于应变模态差和神经网络的管道损伤识别[J].振动.测试与诊断,2015,35(02):334-338.
    ZHOU Shaoping, HAO Zhanfeng, HAN Hongfei,et al. Damage identification in straight pipeline using strain modal difference and neural network [J]. Vibration. Measurement & diagnosis,2015,35(02):334-338.
[9] Morse, L, Zahra S. K. Reliability Based Impact Localization in Composite Panels Using Bayesian Updating and the Kalman Filter[J].Mechanical Systems and Signal Processing,2018,99: 107–28.
[10] 鲜晓东,袁双,纪松林.基于消噪处理岩石声发射信号到达时间的识别方法[J].煤炭学报,2015,40(S1):100-106.
    XIAN Xiaodong, YUAN Shuang, JI Songlin. Method for identifying arrival time of acoustic emission signal based on de-noising processing [J]. Journal of China coal society,2015,40(S1):100-106.
[11] 余文晶,何琳,崔立林等.时延匹配加权的舷外异常噪声源曲面投影定位方法[J].声学学报,2019,44(01):49-56.
    YU Wenjing, HE Lin, CUI Lilin et al. Outboard abnormal noise source localization method with curved surface projection based on time delay matching and weighting criterion [J]. Acta acustica,2019,44(01):49-56.
[12] 王茜,田慕琴,宋建成等.基于经验小波变换的振动信号特征量提取[J].振动与冲击,2021,40(16):261-266.
    WANG Qian, TIAN Muqin, SONG Jiancheng et al. Feature extraction of vibration signals based on empirical wavelet transform [J].Journal of Vibration and Shock, 201,40(16):261-266.
[13] Zhu, J., Siu C. H., Devendra P., et al.Underwater Pipeline Impact Localization Using Piezoceramic Transducers[J].Smart Materials and Structures,2017,26(10):107002.
[14] Liu G Q，Yuan S R，Wu J W，et al. A sound sourcelocalization method based on microphone array formobile robot∥2018 Chinese Automation Congress.Xi'an，China：IEEE，2018：1621-1625.
[15] 李保伟,张兴敢.基于广义互相关改进的麦克风阵列声源定位方法[J].南京大学学报（自然科学）,2020,56(6):917-921.
    LI Baowei, ZHANG Xinggan. Improved microphone array sound source localization method based on generalized cross correlation [J]. Journal of nanjing university (natural science),2020,56(6):917-921.
[16] Gorgin, Rahim, Ziping Wang, Zhanjun Wu, and Yu Yang. “Probability Based Impact Localization in Plate Structures Using an Error Index.” Mechanical Systems and Signal Processing 157 (2021): 107724. https://doi.org/10.1016/j.ymssp.2021.107724
[17] 丛世凡,铁瑛,张晨曦等.基于非线性Lamb波混频模式的复合材料低速冲击损伤研究[J].复合材料科学与工程,2021(10):26-33.
    CONG Shifan, TIE Ying, ZHANG Chenxi et al. Research on low-velocity impact damage of composite materials based on nonlinear Lamb wave mixing detection technology [J]. Composites Science and Engineering,2021(10):26-33.
[18] F.FAHY.Sound and Structural Vibration,Academic Press[M].Lodon,1985.
[19] Moon, S., Seongjin H., To K., et al.Model-Based Localization and Mass-Estimation Methodology of Metallic Loose Parts[J]. Nuclear Engineering and Technology,2020,52(4): 846–55.
[20] 范文健,毛万鑫,吴疆.车辆加速度信号的EMD和IIR滤波联合降噪方法[J].振动与冲击,2021,40(20):307-312.
    FAN Wenjian, MAO Wanxin, WU Jiang. Combined denoising method of vehicle acceleration signal based on EMD and IIR filtering [J].Journal of Vibration and Shock, 201,40(20):307-312.
[21] 郑华文. 核电站松动件定位方法的研究[D].浙江大学,2010.
    ZHENG Huawen. Research on Locating Method of Loose Parts in Nuclear Power Plant [D].Zhejiang University,2010.
[22] 张建超. 面向转向架结构健康监测的声发射波传播机理研究[D].北京交通大学,2019.
    ZHANG Jianchao. Study on Acoustic emission Wave Propagation Mechanism for Bogie Structure Health Monitoring [D]. Beijing Jiaotong University,2019.
[23] 杨将新，郑华文等.基于希尔伯特变换的核电站松动部件定位方法[J].机械工程学报,2009,45(12),232:236.
YANG Jiangxin, ZHENG Huawen,CAO Yanlong,et al.Estimation method for impact location of loose parts based on Hilbert transform[J]. Journal of Mechanical Engineering, 2009,45(12),232:236.
冯勇明,周丽,杨建元等.复合材料梁结构应力波传播特性研究[J].振动与冲击,2016,35(06):20-28.
    FENG Yongming, ZHOU Li, YANG Jianyuan, et al. Wave reflection and transmission in composite beams [J]. Journal of vibration and shock,2016,35(06):20-28.
[24] 李瑞彪,徐荣武,崔立林,等.双层圆柱壳异常噪声源定位试验研究与应用[J].中国舰船研究,2017,12(4):140-146.
    LI Ruibiao, XU Rongwu, CUI Lilin, et al. Research and application of abnormal noise source positioning experiment based on double cylindrical shell [J]. Chinese ship research,2017,12(4):140-146.
[25] 孟宗,岳建辉,邢婷婷等.基于最大幅值变分模态分解和均方根熵的滚动轴承故障诊断[J].计量学报,2020,41(04):455-460.
    MENG Zong, YUE Jianhui, XING Tingting, et al. Rolling bearing fault diagnosis based on maximum amplitude variational mode decomposition and root mean square entropy [J]. Acta metrologica sinica,2020,41(04):455-460.