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学者姓名：刘秀成
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Abstract ：
Magnetostrictive sensors (MsS) are widely used to generate ultrasonic guided waves of SH0 mode for the purpose of detecting defects in plate-like structures. An MsS commonly employs a rectangular magnetostrictive strip and a sensor unit (including detection coil and magnet) to generate SH0 waves. However, the effect of coverage range of static magnetic field (Ls) and dynamic magnetic field (L-D) on the SH0 wave generation direction has not been fully explored. So far, the cases of L-S<>L-S are seldom discussed in the development of MsS for generating SH0 mode. In this study, the key factor governing the direction of SH0 mode generated by FeCo strip-based MsS was experimentally clarified. The transition phenomenon in the generation direction of SH0 wave was observed while the combination parameters crossing the control line of Ls approximate to L-D. The phenomenon could be interpreted by the alterations in the operation mechanism of Wiedemann effect and reversed Wiedemann effect. As a result, the generation direction of SH0 mode could be tuned along the static magnetic field (Ls<>L-D) or the direction of both static and dynamic magnetic fields (Ls approximate to L-D). The findings in this study is of benefit for guiding the design of MsS array with the tunable generation direction of SH0 mode.
Keyword ：
Magnetostrictive sensor Magnetostrictive sensor SH0 mode SH0 mode Ultrasonic guided wave Ultrasonic guided wave Propagation direction Propagation direction
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| GB/T 7714 | Wang, Huan , Zhang, Jianwei , Gao, Xiang et al. Key factors governing the direction of SH0 mode guided waves generated by FeCo strip-based magnetostrictive sensor [J]. | SENSORS AND ACTUATORS A-PHYSICAL , 2024 , 376 . |
| MLA | Wang, Huan et al. "Key factors governing the direction of SH0 mode guided waves generated by FeCo strip-based magnetostrictive sensor" . | SENSORS AND ACTUATORS A-PHYSICAL 376 (2024) . |
| APA | Wang, Huan , Zhang, Jianwei , Gao, Xiang , Wu, Bin , Liu, Yao , Liu, Xiucheng . Key factors governing the direction of SH0 mode guided waves generated by FeCo strip-based magnetostrictive sensor . | SENSORS AND ACTUATORS A-PHYSICAL , 2024 , 376 . |
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Abstract ：
Magnetic Barkhausen noise (MBN), sensitive to the microstructure of materials, can be applied in the surface decarburization depth detection of ferromagnetic specimens. However, the effects of core microstructures on the determination results of decarburization depth have not been explored. In this study, MBN was employed to evaluate the magnetic properties of the decarburized 60Si2Mn spring steels with martensitic and pearlitic core microstructures. Spring steel samples were austenitized at different times to generate different decarburization depths. Seven magnetic features were extracted from the MBN butterfly profiles. We used the variation coefficient, linear correlation coefficient, and normalized sensitivity to discuss the influence of the core microstructures on these seven features. The different core microstructures led to a large difference in the ability of MBN features to characterize the decarburization layer depth. However, three features of MBN butterfly profiles demonstrated an approximately linear dependency (linear correlation coefficient > 94%) on surface decarburization depth and monotonically increased with the increase in depth in both core microstructures of spring steels.
Keyword ：
magnetic Barkhausen noise magnetic Barkhausen noise surface decarburization depth surface decarburization depth spring steel spring steel core microstructure core microstructure
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| GB/T 7714 | Li, Peng , Wang, Xianxian , Ding, Dongdong et al. Surface Decarburization Depth Detection in Rods of 60Si2Mn Steel with Magnetic Barkhausen Noise Technique [J]. | SENSORS , 2023 , 23 (1) . |
| MLA | Li, Peng et al. "Surface Decarburization Depth Detection in Rods of 60Si2Mn Steel with Magnetic Barkhausen Noise Technique" . | SENSORS 23 . 1 (2023) . |
| APA | Li, Peng , Wang, Xianxian , Ding, Dongdong , Gao, Zhaoxiang , Fang, Wen , Zhang, Chaolei et al. Surface Decarburization Depth Detection in Rods of 60Si2Mn Steel with Magnetic Barkhausen Noise Technique . | SENSORS , 2023 , 23 (1) . |
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Abstract ：
The combination of multifunctional micromagnetic testing and neural network-based prediction models is a promising way of nondestructive and quantitative measurement of steel surface hardness. Current studies mainly focused on improving the prediction accuracy of intelligent models, but the unavoidable and random uncertainties related to instruments were seldom explored. The robustness of the prediction model considering the repeatability of instruments was seldom discussed. In this work, a self-developed multifunctional micromagnetic instrument was employed to perform the repeatability test with Cr12MoV steel. The repeatability of the instrument in measuring multiple magnetic features under both static and dynamic conditions was evaluated. The magnetic features for establishing the prediction model were selected based on the consideration of both the repeatability of the instrument and the ability of magnetic features in surface hardness evaluation. To improve the robustness of the model in surface hardness prediction, a modelling strategy considering the repeatability of the instrument was proposed. Through removing partial magnetic features with higher mean impact values from input nodes, robust evaluation of surface hardness in Cr12MoV steel was realized with the multifunctional micromagnetic instrument.
Keyword ：
quantitative prediction quantitative prediction repeatability repeatability robustness robustness micromagnetic testing micromagnetic testing surface harness surface harness
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| GB/T 7714 | Xing, Zhixiang , Wang, Xianxian , Ning, Mengshuai et al. Micromagnetic and Robust Evaluation of Surface Hardness in Cr12MoV Steel Considering Repeatability of the Instrument [J]. | SENSORS , 2023 , 23 (3) . |
| MLA | Xing, Zhixiang et al. "Micromagnetic and Robust Evaluation of Surface Hardness in Cr12MoV Steel Considering Repeatability of the Instrument" . | SENSORS 23 . 3 (2023) . |
| APA | Xing, Zhixiang , Wang, Xianxian , Ning, Mengshuai , He, Cunfu , Liu, Xiucheng . Micromagnetic and Robust Evaluation of Surface Hardness in Cr12MoV Steel Considering Repeatability of the Instrument . | SENSORS , 2023 , 23 (3) . |
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Abstract ：
尖轨缺陷是道岔系统的重要安全隐患之一。研究利用平板式磁致伸缩传感器在轨底激发30、70和100 kHz的类水平剪切波,对尖轨轨头和轨底缺陷进行监测。首先,研究了环境温度对尖轨中特征结构反射回波波包能量的影响规律,观察到波包能量随温度近似线性增长。提出利用特征信号和基准信号能量比值的方法,有效补偿温度对监测结果的影响。其次,开展了尖轨轨头和轨底缺陷体积增大过程中的导波监测实验,利用了缺陷及其后端反射波包能量“先扬后抑”的特性,增强了导波对缺陷的识别能力。以30 kHz和70 kHz导波为例,它们可分别识别出长20.0 mm、宽2.0 mm、深7.1 mm的轨底缺陷和长38.6 mm、宽2.0 mm、深10.1 mm的轨头缺陷。上述研究表明,磁致伸缩导波技术可以实现道岔尖轨缺陷的有效监测,具有重要的工程应用前景。
Keyword ：
超声导波 超声导波 缺陷 缺陷 能量 能量 道岔尖轨 道岔尖轨 磁致伸缩 磁致伸缩 缺陷监测 缺陷监测
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| GB/T 7714 | 栗霞飞 , 吴斌 , 刘尧 et al. 基于磁致伸缩超声导波的道岔尖轨缺陷监测实验研究 [J]. | 北京工业大学学报 , 2023 , (08) : 1-9 . |
| MLA | 栗霞飞 et al. "基于磁致伸缩超声导波的道岔尖轨缺陷监测实验研究" . | 北京工业大学学报 08 (2023) : 1-9 . |
| APA | 栗霞飞 , 吴斌 , 刘尧 , 刘秀成 , 李佳明 , 林书毅 et al. 基于磁致伸缩超声导波的道岔尖轨缺陷监测实验研究 . | 北京工业大学学报 , 2023 , (08) , 1-9 . |
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Abstract ：
硬斑测试是高端钢板产品质量评价的关键内容。本文基于增量涡流检测原理，研制了国产化的钢板硬斑磁检测仪器，并对仪器功能和性能进行了实验测试。首先，研制了增量涡流检测传感器，开发了基于交流电桥测试和相位旋转解调方法的增量涡流检测电路，集成了专用仪器；其次，利用仪器在Cr12MoV钢板和X70管线钢中开展了多组检测试验，结果表明：传感器的横向分辨率可达10 mm,增量涡流信号解调波形峰峰值U_p随表面硬度增加近似线性下降。在高出基准34.8%的硬斑区域内，U_p值下降约75%。利用U_p这一敏感参数对X70管线钢进行扫查成像，可准确识别出宽约10 mm的硬斑。上述研究结果为高端钢板硬斑的在线无损检测提供了方法和仪器支撑。
Keyword ：
扫查仪器 扫查仪器 钢板硬斑 钢板硬斑 无损检测 无损检测 增量涡流 增量涡流
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| GB/T 7714 | 邢智翔 , 何存富 , 刘秀成 et al. 钢板硬斑的增量涡流扫查成像方法与仪器 [J]. | 仪器仪表学报 , 2023 , 44 (02) : 184-191 . |
| MLA | 邢智翔 et al. "钢板硬斑的增量涡流扫查成像方法与仪器" . | 仪器仪表学报 44 . 02 (2023) : 184-191 . |
| APA | 邢智翔 , 何存富 , 刘秀成 , 张建卫 . 钢板硬斑的增量涡流扫查成像方法与仪器 . | 仪器仪表学报 , 2023 , 44 (02) , 184-191 . |
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Abstract ：
汽车B柱加强板软硬部过渡特性评价的常规方法是通过破坏性取样对局部硬度进行检测，无法直接面向零部件进行便捷、快速的无损测试，且耗时、耗费成本。为克服传统方法的不足，研究利用磁巴克豪森噪声检测方法实现过渡特性的无损评价。利用自主研发的多功能微磁检测仪器开展标定试验，提出过渡区域起止位置及长度范围的估算方法，并建立过渡区域的表面硬度定量预测模型。研究结果表明，磁巴克豪森噪声、切向磁场强度信号的大部分特征参量可以有效评估软、硬部过渡范围，参量x_1、x_5和x_(17)对起始点的估计误差范围处于±14 mm，长度估算的相对误差小于10%。利用单一参量x_(17)建立的线性表征模型对硬度的预测RMSE值为12.38 HV10，融合多项磁参量建立的BP神经网络模型的预测精度更高，RMSE值小于6 HV10。提出一种汽车关键部件软硬部过渡特性的微磁评估方法，研究磁巴克豪森噪声特征参量与硬度的关系，实现汽车B柱软硬区表面硬度和软硬部过渡范围的定量表征，具有重要的工程应用前景。
Keyword ：
BP神经网络 BP神经网络 B柱加强板 B柱加强板 磁巴克豪森噪声 磁巴克豪森噪声 表面硬度 表面硬度 过渡特性 过渡特性
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| GB/T 7714 | 董海江 , 郑婷婷 , 于进涛 et al. 汽车B柱加强板软硬部过渡特性的磁巴克豪森噪声检测方法 [J]. | 机械工程学报 , 2023 , 59 (04) : 10-17 . |
| MLA | 董海江 et al. "汽车B柱加强板软硬部过渡特性的磁巴克豪森噪声检测方法" . | 机械工程学报 59 . 04 (2023) : 10-17 . |
| APA | 董海江 , 郑婷婷 , 于进涛 , 付正家 , 刘秀成 , 邢智翔 et al. 汽车B柱加强板软硬部过渡特性的磁巴克豪森噪声检测方法 . | 机械工程学报 , 2023 , 59 (04) , 10-17 . |
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Abstract ：
探讨了紫铜基板表面电镀镍膜拉应变的磁巴克豪森噪声测试和表征方法。首先，构建了能够同步测量电镀镍膜拉伸过程中应变和磁巴克豪森噪声信号的试验装置，获得了不同厚度镍膜中表面切向磁场强度信号，以及不同应变条件下的磁巴克豪森噪声，并从两种信号中筛选出对镍膜厚度、应变敏感的特征磁参量；最后，通过方程拟合分析了特征磁参量对镍膜厚度、拉应变的定量表征能力。结果表明，随着镍膜厚度增加，切向磁场强度的基波幅值(A_1)呈现良好线性下降趋势；磁巴克豪森噪声特征参量(M_(max)或M_(mean))和拉应变的依赖关系服从指数型衰减函数关系。通过组合两种信号的特征参量，可以实现镍膜厚度和拉应变的定量检测。
Keyword ：
定量表征 定量表征 电镀镍膜 电镀镍膜 厚度 厚度 磁巴克豪森噪声 磁巴克豪森噪声 拉应变 拉应变
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| GB/T 7714 | 韩新阳 , 康静伟 , 王楠 et al. 电镀镍膜应变的磁巴克豪森噪声试验表征 [J]. | 无损检测 , 2023 , 45 (07) : 1-6,84 . |
| MLA | 韩新阳 et al. "电镀镍膜应变的磁巴克豪森噪声试验表征" . | 无损检测 45 . 07 (2023) : 1-6,84 . |
| APA | 韩新阳 , 康静伟 , 王楠 , 刘秀成 , 何存富 . 电镀镍膜应变的磁巴克豪森噪声试验表征 . | 无损检测 , 2023 , 45 (07) , 1-6,84 . |
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Abstract ：
A switch rail is an important part of the high-speed railway system, but it is highly susceptible to defects during service, which threat traffic safety. A switch rail has an asymmetric variable cross-section structure, which makes it challenging to detect its defects with ultrasonic testing. In this study, the finite element model of switch rails and the ultrasonic SH guided wave detection of groove defects were explored. The three-dimensional finite element model of switch rails with the same sizes used under working conditions was established. Furthermore, the influences of grid division method, switch mechanism setting method, and root end variable cross-section grid type on guided wave propagation in the model were analyzed in detail. The switch rail model was exper-imentally validated. The ultrasonic SH guided wave detection of the defects at the rail head and rail bottom was successfully realized and the echo signals from other special structures of switch rail were also obtained. The finite element model calibrated with experimental results could be used to simulate guided wave detection at any location with any defect. The calibrated model could optimize the switch rail guided wave detection scheme and guide signal identification. The study provides an important basis for the inspection and monitoring of switch rails.
Keyword ：
Ultrasonic SH guided wave Ultrasonic SH guided wave 3D finite element method 3D finite element method Defect detection Defect detection Grid Grid Switch rail Switch rail
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| GB/T 7714 | Li, Xiafei , Wu, Bin , Gao, Xiang et al. Ultrasonic SH guided wave detection of the defects of switch rails with 3D finite element method [J]. | MEASUREMENT , 2023 , 220 . |
| MLA | Li, Xiafei et al. "Ultrasonic SH guided wave detection of the defects of switch rails with 3D finite element method" . | MEASUREMENT 220 (2023) . |
| APA | Li, Xiafei , Wu, Bin , Gao, Xiang , Liu, Yao , Wang, Huan , Liu, Xiucheng . Ultrasonic SH guided wave detection of the defects of switch rails with 3D finite element method . | MEASUREMENT , 2023 , 220 . |
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Abstract ：
The elasto-magnetic method is a promising pathway for cable force monitoring in cable-stayed bridges. Under the action of an externally applied pulsed magnetic field, both the variation in the main flux recorded by the induction coil and the localized surface magnetic field measured by the packaged magnetic sensor are typical signals for observing the elasto-magnetic effect in tensioned cables. However, the performances of the parameters extracted from the two types of elasto-magnetic signals are never strictly compared in the experiment. Meanwhile, comprehensive indicators for evaluating the ability of elasto-magnetic parameters on cable force characterization are seldom discussed. As a result, it is difficult to compare the performances of elasto-magnetic devices developed by different teams, and the pathway of seeking new parameters for cable force monitoring is obstructed. In this study, elasto-magnetic calibration experiments were performed on a cable of seven-wire steel strands to simultaneously measure the variation in the main flux and the localized surface magnetic field. Comprehensive indicators considering sensitivity, hysteresis error, and cable force resolution are proposed to examine the performances of classic elasto-magnetic parameters and new candidate ones. Through comparative study, two new parameters demonstrated outstanding ability for cable force measurement, and they are the minimum amplitude of the induced voltage and the area under the curve between two points of 3 dB height of the voltage measured by a Hall sensor. The latter is recommended for high-performance cable force monitoring from the perspective of simplicity in sensor configuration.
Keyword ：
performance evaluation performance evaluation cable force measurement cable force measurement comprehensive indicators comprehensive indicators elasto-magnetic effect elasto-magnetic effect
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| GB/T 7714 | Yan, Shuangsheng , Wang, Yujue , Li, Peng et al. Comprehensive Indicators for Evaluating and Seeking Elasto-Magnetic Parameters for High-Performance Cable Force Monitoring [J]. | SENSORS , 2022 , 22 (20) . |
| MLA | Yan, Shuangsheng et al. "Comprehensive Indicators for Evaluating and Seeking Elasto-Magnetic Parameters for High-Performance Cable Force Monitoring" . | SENSORS 22 . 20 (2022) . |
| APA | Yan, Shuangsheng , Wang, Yujue , Li, Peng , Gao, Zhichao , Wu, Bin , Liu, Xiucheng . Comprehensive Indicators for Evaluating and Seeking Elasto-Magnetic Parameters for High-Performance Cable Force Monitoring . | SENSORS , 2022 , 22 (20) . |
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Abstract ：
In the study, the three-dimensional (3D) morphology of defects in thin steel strips with a thickness of 0.8 mm was determined with the imaging method of magnetic field distortion (MFD). First, MFD imaging of through-wall defects and wall-thinning defects in the samples collected from inline products was performed in our laboratory. The actual profiles of the defects were measured with a digital microscope. Second, MFD imaging results were compared with the actual shapes of the defects in order to develop a proper 3D reconstruction method of complex defects. Finally, the analysis results demonstrated that the high reconstruction accuracy of opening contours of complex defects could be realized with the carefully selected threshold value of MFD-induced voltage amplitude. The good linear dependency of MFD-induced voltage amplitude on the depth of complex wall-thinning defects was confirmed. Therefore, MFD imaging method is a promising method for accurately reconstructing 3D shape of complex wall-thinning defects in thin steel strips.
Keyword ：
magnetic field distortion magnetic field distortion 3D reconstruction 3D reconstruction complex defect complex defect thin steel strip thin steel strip
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| GB/T 7714 | Li, Hengtao , Liu, Xiucheng , Zhang, Jiaying et al. Three-Dimensional Reconstruction of Complex Defects in Thin Steel Strips with the Imaging Method of Magnetic Field Distortion [J]. | RESEARCH IN NONDESTRUCTIVE EVALUATION , 2022 , 32 (6) : 310-322 . |
| MLA | Li, Hengtao et al. "Three-Dimensional Reconstruction of Complex Defects in Thin Steel Strips with the Imaging Method of Magnetic Field Distortion" . | RESEARCH IN NONDESTRUCTIVE EVALUATION 32 . 6 (2022) : 310-322 . |
| APA | Li, Hengtao , Liu, Xiucheng , Zhang, Jiaying , Wang, Chang , Wu, Bin , He, Cunfu . Three-Dimensional Reconstruction of Complex Defects in Thin Steel Strips with the Imaging Method of Magnetic Field Distortion . | RESEARCH IN NONDESTRUCTIVE EVALUATION , 2022 , 32 (6) , 310-322 . |
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