实验室声发射三维定位软件
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摘要
简要介绍了地震动力学实验室新一代声发射定位软件的主要功能、定位算法的实现方案以及定位效果的评测结果。新软件配有多种通用数据库接口,具有与设备无关的处理能力。它除了可以进行三维定位之外,还可以进行面定位与线定位。定位时,可以给定样品的波速,也可以把波速当未知数求解。定位算法的主要改进有两个方面:1)以稳健的走时绝对偏差最小作为定位目标函数;2)方程组求解优化过程采用了模拟退火法直接搜索目标函数的全局最小值。新软件显著提高了定位的精度,同时提供了一个方便快捷的数据处理平台。
New software for acoustic emission location has been developed and the main functions,methods for location are introduced briefly.The tested location result with the software is presented also.The multi common Data Base interfaces are built in the software,so it is device-independent.Besides the three-dimension location,it can be employed for surface or linear location.In locating,the velocity of sample material will be an appointed constant or an unknown variable.There are two improvements in the algorithm.The first is that the least absolute deviation based on robust estimation is taken as objective function for location.The second is a simulated annealing method that is applied to search the global minimum of objective function in optimization procedure.The location accuracy of acoustic emission focus is much better with the software and it is a flexible tool for data processing.
New software for acoustic emission location has been developed and the main functions,methods for location are introduced briefly.The tested location result with the software is presented also.The multi common Data Base interfaces are built in the software,so it is device-independent.Besides the three-dimension location,it can be employed for surface or linear location.In locating,the velocity of sample material will be an appointed constant or an unknown variable.There are two improvements in the algorithm.The first is that the least absolute deviation based on robust estimation is taken as objective function for location.The second is a simulated annealing method that is applied to search the global minimum of objective function in optimization procedure.The location accuracy of acoustic emission focus is much better with the software and it is a flexible tool for data processing.
引文
扈小燕,刘培洵,刘力强,等.2005.实验室声发射实验数据服务系统的构建[J].地震地质,27(4):653—660.HU Xiao-yan,LIU Pei-xun,LIULi-qiang,et al.2005.Data service system for acoustic emission experiment in labo-ratory[J].Seismology and Geology,27(4):653—660(in Chinese).
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雷兴林,马瑾,南濑勤一郎,等.1991.三轴压缩下粗晶花岗闪长岩声发射三维分布及其分形特征[J].地震地质,13(2):97—114.LEI Xing-lin,MAJin,Kusunose K,et al.1991.Spatial distribution and fractal structure of AE focuses of Inada graniteunder triaxial compression[J].Seismology and Geology,13(2):107—114.
刘力强,马瑾,吴秀泉.1986.雁列式断层变形与失稳过程的实验研究[J].地震学报,8(4):393—403.LIU Li-qiang,MA Jin,WU Xiu-quan.1986.An experimental study on the process of deformation and instability foren-echelon faults[J].Acta Seismologica Sinica,8(4):393—403(in Chinese).
刘力强,雷兴林.2003.超高速并行网络声发射观测系统[J].地震地质,25(3):477—479,420.LIULi-qiang,LEI Xing-lin.2003.An acoustic emission acquiring system with ultra-high speed parallel net[J].Seis-mology and Geology,25(3):477—479,420(in Chinese).
沈功田,刘时风.2002.声发射源定位技术[J].无损检测,24(3):114—117,125.SHEN Gong-tian,LIU Shi-feng.2002.Acoustic emission source location[J].Nondestructive Testing,24(3):114—117,125(in Chinese).
沈功田,戴光,刘时风,等.2003.中国声发射检测技术进展:学会成立25周年纪念[J].无损检测,25(6):302—307.SHEN Gong-tian,DAI Guang,LIUShi-feng,et al.2003.Acoustic emission testing progress in China:celebration forthe25th anniversary of Chinese Society for NDT[J].Nondestructive Testing,25(6):302—307(in Chinese).
王凌.2001.智能优化算法及其应用[M].北京:清华大学出版社.17—35.WANG Ling.2001.Intelligent Optimization Algorithms with Applications[M].Tsinghua University Press,Beijing.17—35(in Chinese).
王文峰.2006.基于LINGO的最小一乘线性回归的参数估计[J].贵州财经学院学报,(3):106—108.WANG Wen-feng.2006.A LINGO-based coefficient estimation of linear least absolute deviations regression[J].Journal of Guizhou College of Finance and Economics,(3):106—108(in Chinese).
赵仲和.2005.地震自动定位的综合解决方案[J].地震地磁观测与研究,26(1):50—56.ZHAO Zhong-he.2005.A comprehensive solution for automated earthquake location[J].Seismological and Geomag-netic Observation and Research,26(1):50—56(in Chinese).
雷兴林,马瑾.1990.实验室岩石声发射三维定位及标本波速场联合反演理论及方法[A].见:全国第二届构造物理学术讨论会文集.北京:地震出版社.186—195.LEI Xing-lin,MA Jin.1990.Simultaneous inversion of3-dimensional location of acoustic emission and velocity struc-ture of rock sample in laboratory:Theory and method[A].In:The Proceedings of the2ndSymposium on Tec-tonophysics in China.Seismological Press,Beijing.186—195(in Chinese).
雷兴林,马瑾,南濑勤一郎,等.1991.三轴压缩下粗晶花岗闪长岩声发射三维分布及其分形特征[J].地震地质,13(2):97—114.LEI Xing-lin,MAJin,Kusunose K,et al.1991.Spatial distribution and fractal structure of AE focuses of Inada graniteunder triaxial compression[J].Seismology and Geology,13(2):107—114.
刘力强,马瑾,吴秀泉.1986.雁列式断层变形与失稳过程的实验研究[J].地震学报,8(4):393—403.LIU Li-qiang,MA Jin,WU Xiu-quan.1986.An experimental study on the process of deformation and instability foren-echelon faults[J].Acta Seismologica Sinica,8(4):393—403(in Chinese).
刘力强,雷兴林.2003.超高速并行网络声发射观测系统[J].地震地质,25(3):477—479,420.LIULi-qiang,LEI Xing-lin.2003.An acoustic emission acquiring system with ultra-high speed parallel net[J].Seis-mology and Geology,25(3):477—479,420(in Chinese).
沈功田,刘时风.2002.声发射源定位技术[J].无损检测,24(3):114—117,125.SHEN Gong-tian,LIU Shi-feng.2002.Acoustic emission source location[J].Nondestructive Testing,24(3):114—117,125(in Chinese).
沈功田,戴光,刘时风,等.2003.中国声发射检测技术进展:学会成立25周年纪念[J].无损检测,25(6):302—307.SHEN Gong-tian,DAI Guang,LIUShi-feng,et al.2003.Acoustic emission testing progress in China:celebration forthe25th anniversary of Chinese Society for NDT[J].Nondestructive Testing,25(6):302—307(in Chinese).
王凌.2001.智能优化算法及其应用[M].北京:清华大学出版社.17—35.WANG Ling.2001.Intelligent Optimization Algorithms with Applications[M].Tsinghua University Press,Beijing.17—35(in Chinese).
王文峰.2006.基于LINGO的最小一乘线性回归的参数估计[J].贵州财经学院学报,(3):106—108.WANG Wen-feng.2006.A LINGO-based coefficient estimation of linear least absolute deviations regression[J].Journal of Guizhou College of Finance and Economics,(3):106—108(in Chinese).
赵仲和.2005.地震自动定位的综合解决方案[J].地震地磁观测与研究,26(1):50—56.ZHAO Zhong-he.2005.A comprehensive solution for automated earthquake location[J].Seismological and Geomag-netic Observation and Research,26(1):50—56(in Chinese).
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