筒状构件应力集中磁记忆检测补偿方法研究

doi:10.3901/JME.2022.24.049

机械工程学报 ›› 2022, Vol. 58 ›› Issue (24): 49-57.doi: 10.3901/JME.2022.24.049

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筒状构件应力集中磁记忆检测补偿方法研究

胡斌¹, 闫梁^1,2, 张砚耕^1,3, 范孟豹²

1. 中国特种设备检测研究院北京 100029;
2. 中国矿业大学机电工程学院徐州 221116;
3. 中国计量大学计量测试工程学院杭州 310018

收稿日期:2022-03-30 修回日期:2022-09-02 出版日期:2022-12-20 发布日期:2023-04-03
通讯作者: 范孟豹(通信作者),男,1981年出生,教授,博士研究生导师。主要研究方向为无损检测理论与应用。E-mail:wuzhi3495@cumt.edu.cn
作者简介:胡斌,男,1977年出生,博士,研究员。主要研究方向为智能检测监测。E-mail:hubin@csei.org.cn;闫梁,男,1997年出生。主要研究方向为电磁无损检测。E-mail:TS19050039A31LD@cumt.edu.cn;范孟豹(通信作者),男,1981年出生,教授,博士研究生导师。主要研究方向为无损检测理论与应用。E-mail:wuzhi3495@cumt.edu.cn
基金资助:
国家重点研发计划（2017YFF0210701）和江苏省高校优势学科资助项目。

Research on Magnetic Memory Detection and Compensation Method for Early Damage of Tubular Components

HU Bin¹, YAN Liang^1,2, ZHANG Yangeng^1,3, FAN Mengbao²

1. China Special Equipment Inspection & Research Institute, Beijing 100029;
2. School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou 221116;
3. School of Metrology and Testing Engineering, China Jiliang University, Hangzhou 310018

Received:2022-03-30 Revised:2022-09-02 Online:2022-12-20 Published:2023-04-03

摘要/Abstract

摘要： 筒状构件是一种常用的工程构件，一旦发生事故将会造成重大损失，应力集中是导致构件失效的重要原因。磁记忆检测方法是一种有效的应力集中检测方法。对筒状构件进行圆周扫查时，地磁场的作用变化影响磁记忆检测结果，容易造成应力集中区域的误判。建立铁磁质筒状构件外表面地磁场分布模型，探究地磁场在筒状构件外表面作用效果及补偿方法。试验结果显示，对铁磁质筒状构件进行圆周扫查时，法向分量与幅值约为地磁场的2倍。将磁信号法向分量减去2倍地磁场作为筒状构件磁记忆检测补偿方法，补偿后与直线扫查相关系数稳定在0.8以上，优于传统反向补偿法。提出的筒状构件补偿方法有效提高了应力集中区域定位精度。

关键词: 磁记忆检测, 筒状构件, 早期应力集中, 地磁场补偿

Abstract: The tubular member is a commonly used engineering member, which will cause heavy losses in the event of an accident. Stress concentration is an important cause of component failure. Magnetic memory testing method is an effective stress concentration testing method. Circumferential scanning magnetic memory detection is performed on cylindrical components, and changes in the action of the earth's magnetic field affect the detection results, which are likely to cause misjudgment of stress concentration areas. The geomagnetic field distribution model on the outer surface of the ferromagnetic cylindrical member is established, and the effect and compensation method of the geomagnetic field on the outer surface of the cylindrical member are explored. The experimental results show that the normal component and amplitude are about twice the geomagnetic field when the ferromagnetic cylindrical member is scanned circumferentially. The normal component of the magnetic signal minus 2 times the geomagnetic field is used as the magnetic memory detection compensation method for cylindrical components, and the correlation coefficient between the compensation and the linear scan is stable above 0.8, which is better than the traditional reverse compensation method. The proposed compensation method for cylindrical components effectively improves the positioning accuracy of stress concentration areas.

Key words: magnetic memory detection, fan tower barrel, early stress concentration, geomagnetic field compensation

中图分类号:

TM154

胡斌, 闫梁, 张砚耕, 范孟豹. 筒状构件应力集中磁记忆检测补偿方法研究[J]. 机械工程学报, 2022, 58(24): 49-57.

HU Bin, YAN Liang, ZHANG Yangeng, FAN Mengbao. Research on Magnetic Memory Detection and Compensation Method for Early Damage of Tubular Components[J]. Journal of Mechanical Engineering, 2022, 58(24): 49-57.

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筒状构件应力集中磁记忆检测补偿方法研究

Research on Magnetic Memory Detection and Compensation Method for Early Damage of Tubular Components

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