[1]丁锐,罗蕊寒,赖菲,等. 基于奇异谱和相关性分析的木材声发射源直线定位算法研究[J].西北林学院学报,2021,36(5):173-178.[doi:10.3969/j.issn.1001-7461.2021.05.26]
　DING Rui,LUO Rui-han,LAI Fei,et al. Straight Line Location Algorithm of Wood Acoustic Emission Source Based on Singular Spectrum Analysis and Signal Correlation Analysis Methods[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2021,36(5):173-178.[doi:10.3969/j.issn.1001-7461.2021.05.26]
点击复制

 基于奇异谱和相关性分析的木材声发射源直线定位算法研究()
分享到：

《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第36卷
期数:
2021年第5期
页码:
173-178
栏目:
出版日期:
2021-09-30

文章信息/Info

Title:
 Straight Line Location Algorithm of Wood Acoustic Emission Source Based on Singular Spectrum Analysis and Signal Correlation Analysis Methods
文章编号:
1001-7461(2021)05-0173-06
作者:
 丁锐1; 罗蕊寒1; 赖菲1; 王明华1; 邓婷婷1; 罗廷芳1; 李明2*
 （1.西南林业大学 机械与交通学院，云南 昆明 650224；2.安徽工程大学 电气工程学院，安徽 芜湖 241000）
Author(s):
 DING Rui1; LUO Rui-han1; LAI Fei1; WANG Ming-hua1; DENG Ting-ting1; LUO Ting-fang1; LI Ming2*
 (1.College of Machinery and Transportation,Southwest Forestry University,Kunming 650224,Yunnan,China; 2.School of Electrical Engineering,Anhui Polytechnic University,Wuhu 241000,Anhui,China)
关键词:
 ; 木材; 声发射源定位; 奇异谱分析; 信号相关性; 最大值分析
Keywords:
 ; wood;  acoustic emission source location;  singular spectrum analysis;  signal correlation analysis;  maximum analysis
分类号:
S781.38
DOI:
10.3969/j.issn.1001-7461.2021.05.26
文献标志码:
A
摘要:
 针对木材声发射（acoustic emission,AE）信号的随机特性，提出了一种基于奇异谱和信号相关性分析的木材表面AE源直线定位算法。首先，依据ASTM标准通过折断铅芯的方式分别在樟子松和榉木试件表面产生AE源，并在顺纹理方向布置2个AE传感器，其中采样频率设置为500 kHz。然后，采用奇异谱分析（singular spectrum analysis，SSA）算法提高AE信号的信噪比，再分别基于信号相关性和最大值分析2种方法计算AE信号在木材表面顺纹理方向的传播速度。最后，依据AE信号传播时差和计算速度，基于时差定位原理设计AE源定位算法。并针对SSA处理前后的AE信号，采用不同定位算法进行比较试验。结果表明，直接对原始AE信号采用基于信号相关性和最大值分析方法确定信号传播速度时，樟子松试件2个不同位置AE源的定位误差分别为51.8%、55.7%和75.7%、46.6%；榉木试件2个不同位置AE源的定位误差分别为52.0%、44.8%和37.7%、45.5%。而对于经SSA处理后的AE信号，樟子松试件相应的定位误差分别为5.1%、33.2%和2.6%、31.7%；榉木试件相应的定位误差分别为3.1%、54.9%和5.1%、22.9%。因此，对原始AE信号进行SSA降噪处理后，再基于信号相关性分析方法确定信号传播速度，能够显著提高木材表面AE源的定位精度。
Abstract:
 A linear localization algorithm for AE sources on wood surfaces was proposed based on singular spectrum and signal correlation analysis for the random characteristics of wood acoustic emission (AE) signals.Firstly,AE sources were generated on the surfaces of Pinus sylvestris var.mongolica and Zelkova schneideriana specimens by breaking lead cores according to ASTM standards,and two AE sensors were arranged in the down-grain direction,where the sampling frequency was set to 500 kHz.Secondly,the singular spectrum analysis (SSA) algorithm was used to improve the signal-to-noise ratio of the AE signal,and then the propagation speed of the AE signal along the grain direction on the wood surface was calculated based on two methods of signal correlation and maximum value analysis.Finally,according to the time difference of AE signal propagation and calculation speed,the AE source positioning algorithm was designed based on the time difference positioning principle.For the AE signals before and after SSA processing,different positioning algorithms were used for comparative experiments.The test results showed that when the original AE signal was directly used to determine the signal propagation speed based on the signal correlation and maximum value analysis methods,the positioning errors of the AE source at two different positions of the P.sylvestris var.mongolica specimen were 51.8%,55.7% and 75.7%,46.6%,respectively.The corresponding positioning errors for the Z.schneideriana specimen were 3.1%,54.9% and 5.1%,22.9%,respectively.Therefore,the SSA noise reduction process of the original AE signal,followed by the determination of the signal propagation speed based on the signal correlation analysis method,can significantly improve the localization accuracy of the AE source on the wood surface.

相似文献/References:

[1]薛振华,赵广杰.不同处理方法对木材结晶性能的影响[J].西北林学院学报,2007,22(02):169.
　XUE Zhen-hua,ZHAO Guang-jie.Influence of Different Treatments of on Wood Crystal Properties[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2007,22(5):169.
[2]黄林,冯德君,杨庆.木材显微结构图片的计算机制作[J].西北林学院学报,2000,15(03):56.
　Huang Lin,Fen Dejun,Yang Qing.Development of Wood Microstructure Picture by Computer[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2000,15(5):56.
[3]钟云志,钟义山.木材导温系数模型的研究[J].西北林学院学报,2003,18(02):84.
　The Model Research of Wood Thermal Diffusivity[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2003,18(5):84.
[4]刘镇波,刘一星,沈隽,等.乐器共鸣板用木材的声学特性研究进展[J].西北林学院学报,2006,21(03):124.
　LIU Zhenbo,LIU Yixing,SHEN Juan,et al.Advances in Study and Research on Acoustic Property of Wood for Soundboard of Musical Instrument[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2006,21(5):124.
[5]王迪海,赵忠,张彦. 黄土高原刺槐细根与土壤水分特征[J].西北林学院学报,2012,27(01):1.
　WANG Di-hai,ZHAO Zhong,ZHANG Yan. The Fine Root of Robinia pseudoacacia and Soil Moisture in the Loess Plateau[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2012,27(5):1.
[6]耿生莲. 不同土壤水分下黑果枸杞生理特点分析[J].西北林学院学报,2012,27(01):6.
　GENG Sheng lian. Physio Characteristics of Lycium ruthenicum under Different Soil Water Conditions[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2012,27(5):6.
[7]乌凤章. 辽南地区越橘根系分布特征[J].西北林学院学报,2012,27(01):11.
　WU Feng zhang. Characteristics of Root System of Blueberry in South of Liaoning Province[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2012,27(5):11.
[8]张学星,周筑,陈强,等. 17种云南乡土树种对不同程度水涝胁迫的忍耐性调查[J].西北林学院学报,2012,27(01):15.
　ZHANG Xue xing,ZHOU Zhu,CHEN Qiang,et al. Waterlogging Tolerance of 17 Native Tree Species in Yunnan[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2012,27(5):15.
[9]钱瑭璜,雷江丽,庄雪影. 3种草本蕨类植物耐旱性研究[J].西北林学院学报,2012,27(01):22.
　QIAN Tang-huang,LEI Jiang-li,ZHUANG Xue-ying. Anti-drought Stress Capacity of 3 Herbal Ferns[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2012,27(5):22.
[10]彭邵锋,王瑞,陈永忠,等. 油茶无性系果实生长期光合特性研究[J].西北林学院学报,2012,27(01):28.
　PENG Shao-feng,WANG Rui,CHEN Yong-zhong,et al. Photosynthetic Characteristics in Fruit-growing Stage of Camellia oleifera Clones[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2012,27(5):28.
[11]韦鹏练,廖克波,符韵林,等. 山白兰木材干燥特性研究[J].西北林学院学报,2012,27(01):229.
　WEI Peng-lian,LIAO Ke-bo,FU Yun-lin,et al. A Study of Drying Characteristics of Paramichelia baillonii[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2012,27(5):229.
[12]李敏华,谭必明,黄志同,等. 古家具木材无损鉴定方法研究[J].西北林学院学报,2012,27(06):165.
　LI Min-hua,TAN Bi-ming,HUANG Zhi-tong,et al. A Study on Wood Non-destructive Identification Method of Ancient Furniture[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2012,27(5):165.
[13]刁海林,罗建举,蔡道雄. 红锥木材蠕变特性研究[J].西北林学院学报,2013,28(02):173.[doi:10.3969/j.issn.1001-7461.2013.02.34]
　DIAO Hai-lin,LUO Jian-ju,CAI Dao-xiong. Creep Characteristics of Castanopsis hystrix Wood[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2013,28(5):173.[doi:10.3969/j.issn.1001-7461.2013.02.34]
[14]刘辛燕,薛静,何淑娟,等. 纳米MnO2改性木材对甲醛的光催化降解研究[J].西北林学院学报,2014,29(03):194.[doi:doi:10.3969/j.issn.1001-7461.2014.03.39]
　LIU Xin-yan,XUE Jing,HE Shu-juan,et al. Photocatalytic Degradation of Formaldehyde by Nano-MnO2 Modified Wood[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2014,29(5):194.[doi:doi:10.3969/j.issn.1001-7461.2014.03.39]
[15]刁海林,罗建举,蔡道雄. 水浸时效对红锥木材蠕变特性的影响[J].西北林学院学报,2015,30(02):217.[doi:doi:10.3969/j.issn.1001-7461.2015.02.38]
　DIAO Hai-lin,LUO Jian-ju,CAI Dao-xiong. The Influence of Water Immersion Aging on Creep Characteristics of Castanopsis hystrix Wood[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2015,30(5):217.[doi:doi:10.3969/j.issn.1001-7461.2015.02.38]
[16]于帅帅,申丽娟,李杨,等. 云南松表面声发射信号采集与特征分析[J].西北林学院学报,2017,32(2):247.[doi:10.3969/j.issn.1001-7461.2017.02.42]
　YU Shuai-shuai,SHEN Li-juan,LI Yang,et al. Acquisition and Characteristic Analysis of the Surface of Pinus yunnanensis Acoustic Emission Signal[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2017,32(5):247.[doi:10.3969/j.issn.1001-7461.2017.02.42]
[17]王茜,薛童,胡逢海,等. 毛白杨压缩变形回复工艺与应用的研究[J].西北林学院学报,2018,33(1):247.[doi:10.3969/j.issn.1001-7461.2018.01.40]
　WANG Qian,XUE Tong,HU Feng-hai,et al. A Study on the Technique and Application of Compressive Deformation Recovery of Poplar Timber[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2018,33(5):247.[doi:10.3969/j.issn.1001-7461.2018.01.40]
[18]雷福娟,陈桂丹,黄腾华,等. 楠木及其相似树种木材构造的比较分析[J].西北林学院学报,2018,33(2):180.[doi:10.3969/j.issn.1001-7461.2018.02.29]
　LEI Fu-juan,CHEN Gui-dan,HUANG Teng-hua,et al. Comparison of the Wood Structure of Phoebe sp.and Its Similar Species[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2018,33(5):180.[doi:10.3969/j.issn.1001-7461.2018.02.29]
[19]陈思禹,薛振华*,刘金炜,等. 碱处理对木材松弛性能的影响[J].西北林学院学报,2018,33(2):193.[doi:10.3969/j.issn.1001-7461.2018.02.31]
　CHEN Si-yu,XUE Zhen-hua*,LIU Jin-wei,et al. Effect of Alkali Treatment on Relaxation Properties of Wood[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2018,33(5):193.[doi:10.3969/j.issn.1001-7461.2018.02.31]
[20]吴华平,饶瑾,杨秀树,等. 甲基丙烯酸羟乙酯/甲基丙烯酸甲酯交联聚合物在木材中原位构建及对其尺寸稳定性影响[J].西北林学院学报,2018,33(4):193.[doi:10.3969/j.issn.1001-7461.2018.04.31]
　WU Hua-ping,RAO Jin,YANG Xiu-shu,et al. Dimensional Stability Improvement of Wood Via in situ Construction of Polyhydroxyethyl Methylacrylate and Polymethyl Methylacrylate Networks[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2018,33(5):193.[doi:10.3969/j.issn.1001-7461.2018.04.31]

备注/Memo

备注/Memo:
 收稿日期：2020-09-21修回日期：2021-03-12
基金项目：国家自然科学基金（31760182，31100424）；云南省教育厅科学研究基金（2020Y0376）；云南省教育厅资助性项目（2017ZZX215）。
作者简介：丁锐。研究方向：木材无损检测。E-mail:327201725@qq.com
*通信作者：李明，教授，博士生导师。研究方向：智能控制与优化，木材声发射特性。E-mail:swfu_lm@swfu.edu.cn
更新日期/Last Update: