基于巴克豪森效应的钢轨表面应力研究
Application of Barkhausen Effect to Research the Surface Stress of Rail
摘 要
基于巴克豪森噪声(MBN)检测原理, 研究了60 kg/m钢轨的巴克豪森信号与压应力的变化关系。介绍了MBN检测系统的设计与实行方案和在应力检测方面的应用。在材料的弹性范围内, MBN平均值、均方根和振铃数都随着压应力的增大而减小, 其变化率依次递增。MBN峰值时间随着压应力的增大而增大。MBN信号与温度呈线性关系, 可用来检测不同温度下的钢轨应力值。
压应力
钢轨
峰值时间
Magnetic Barkhausen noise
Compressive stress
Rail
Peak time
Abstract
The relationships between Barkhausen signals in the 60 kg/m rail and the compressive stress are developed in terms of Barkhausen noise(MBN). The paper reports the design and implementation of MBN systems and its application for stress measurement.In the range of elastic limit, MBN average, RMS, counts decreases with the increase of compressive stress. The rate of changes gradually increases. The peak time of Barkhausen signal increases with the increase of compressive stress. MBN signals show the linear relationship with temperatures, and it can be used to detect stress value of rail at different temperatures.
中图分类号 TG115.28
所属栏目 2010年远东无损检测论坛论文精选
基金项目 国家自然科学基金资助项目(50907032); 江苏省科技厅项目资助项目(BE2009162, BZ2009051); 博士点基金项目资助项目(20093218120019)
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备注王 平(1977-), 男, 博士, 副教授, 研究方向为测试计量技术与仪器、虚拟仪器、无线通信与射频传输技术等。
引用该论文: WANG Ping,YANG Ya-Rong,TIAN Gui-Yun,YAO En-Tao,WANG Hai-Tao. Application of Barkhausen Effect to Research the Surface Stress of Rail[J]. Nondestructive Testing, 2010, 32(10): 757～761
王 平,杨雅荣,田贵云,姚恩涛,王海涛. 基于巴克豪森效应的钢轨表面应力研究[J]. 无损检测, 2010, 32(10): 757～761
被引情况:
【1】闫小明,王平,田贵云,贾晓媛, "室外温度变化对巴克豪森检测的影响",无损检测 33, 14-20(2011)
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参考文献
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【9】田浩, 于石生, 赵小莹.利用巴克豪森效应测定钢轨纵向应力[J].材料科学与工艺, 2004, 12(2): 196-198.
【2】John W Wilson, Gui Yun Tian, Vaidhianathasamy Moorthy, et al. Magneto-acoustic emission and magnetic Barkhausen emission for case depth measurement in En36 gear steel[J]. IEEE Transactions on Magnetics, 2009, 45(1): 177-183.
【3】余玉武.对照Barkhausen效应研究硅钢磁声发射源机制[D].武汉: 武汉大学, 1990.
【4】John Wilson, Gui Yun Tian. Pulsed magneto-acoustic emission sensor array for stress measurement and material characterisation[C]. School of Computing and Engineering Researchers Conference, University of Huddersfield, 2006.
【5】Stewart D M, Stevens K J, Kaiser A B. Magnetic Barkhausen noise analysis of stress in steel[J]. Current Applied Physics, 2004(4): 308-311.
【6】刘明珠, 杨从晶, 于助, 等.巴克豪森噪声在应力及疲劳损伤检测上的应用[J].哈尔滨理工大学学报, 2001, 6(1): 73-76.
【7】Lo C C H, Jakubovics J P, Scruby C B. Monitoring the microstructure of pearlitic steels by magnetoacoustic emission[J]. Journal of Applied Physics, 1997, 81(8): 4069-4071.
【8】于石生, 田浩.基于巴克豪森效应的无缝钢轨纵向应力测试[J].无损检测, 2002, 24(3): 93-95.
【9】田浩, 于石生, 赵小莹.利用巴克豪森效应测定钢轨纵向应力[J].材料科学与工艺, 2004, 12(2): 196-198.
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