基于声发射定位算法的故障检测技术研究  

Fault Detection Monitoring with Acoustic Emission Location Method

作　　者：童国炜 徐华伟[1,2] 黄林轶 陈超英[1,2] 刘斌辉 蔡佳 TONG Guowei;XU Huawei;HUANG Linyi;CHEN Chaoying;LIU Binhui;CAI Jia(The 5th Electronic Research Institute,Ministry of Industry and Information Technology Guangzhou,511370,China;Key Laboratory of MIIT for Intelligent Products Testing and Reliability Guangzhou,511370,China)

机构地区：[1]工业和信息化部电子第五研究所,广州511370 [2]智能产品质量评价与可靠性保障技术工业和信息化部重点实验室,广州511370

出　　处：《振动．测试与诊断》2022年第5期997-1001,1039,共6页Journal of Vibration,Measurement & Diagnosis

基　　金：广东省省级促进经济高质量发展专项资助项目(MGG192500190)。

摘　　要：高精度的声发射源定位能够帮助工程人员快速定位故障或异常发生的位置,可用于对大型设备进行结构可靠性监测和检测。为了提高声发射源定位的精度,提出一种融合了Geiger定位方法、同伦算法及牛顿梯度方法的源定位算法。采用Geiger迭代定位方法实现对源定位信息的迭代更新,并将更新信息的求解转变为对不适定问题的求解。同伦算法和牛顿梯度方法的结合,避免了常规不适定问题求解方法中耗时的矩阵求逆,优化了求解过程。实验结果表明,所提方法优于常规定位算法,可实现对声发射源位置信息的高精度求解。The acoustic emission localization algorithm with high accuracy can help engineers quickly ascertain the fault or abnormality location,which can be used to monitor and detect the reliability of large scale equipment.In order to improve the localization accuracy,a novel localization algorithm is proposed,which fuses the excellent numerical performance of the Geiger method,homotopy algorithm and Newton's gradient method.The Geiger method is adopted to realize the iterative update of source location information,and an ill-posed problem is designed to update the source location information.The combination of homotopy algorithm and Newton's gradient method avoids the time-consuming matrix inversion in the conventional solution method.The final experimental results show that the proposed method in this paper is superior to the conventional localization algorithm,and can achieve a more precision solution of the acoustic emission source location information.

关 键 词：无损检测 声发射 源定位算法 Geiger定位 同伦 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置] TH70[自动化与计算机技术—控制科学与工程]