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学者姓名：刘秀成
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摘要 ：
One-dimensional composite chain of viscoelastic spheres are potential candidates for novel impact buffers. Understanding the energy attenuation behavior of primary stress waves in the composite chain of viscoelastic spheres is the premise for high-performance impact buffers design. Although the current research included viscoelasticity into the motion equations of spheres, most of them were limited to homogeneous chains. Moreover, the models of discrete system could not give the explicit expressions of the key factors governing the energy attenuation of primary stress waves. The absence of explicit formulas for the key factors hindered efficient optimization design of impact buffers constructed by one-dimensional composite chain of viscoelastic spheres. In this study, empirical formulas for predicting the input amplitude, the attenuation coefficient of the contact force and the transmission coefficient at the interface were constructed. Multivariate nonlinear regression method and dimensional constraint were applied to ensure that all the empirical formulas only employ the impact velocity and the parameters of the used spheres as independent variables. Intermediate factor was introduced for individual key factor to evaluate the accuracy of the empirical formula. Though the groups of empirical formulas have degraded performance in the low range of the intermediate factors, their accuracy in quantitatively predicting the energy attenuation behavior of the stress waves in one-dimensional composite chain of viscoelastic spheres deserves satisfactory.
关键词 ：
Primary stress waves Primary stress waves Composite chain of viscoelastic spheres Composite chain of viscoelastic spheres Empirical formulas Empirical formulas Energy attenuation Energy attenuation
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| GB/T 7714 | Wang, Heying , Liu, Xiucheng , Ding, Juncai et al. Empirical formulas for predicting the energy attenuation behavior of primary stress waves in 1D composite chain of viscoelastic spheres [J]. | INTERNATIONAL JOURNAL OF IMPACT ENGINEERING , 2024 , 183 . |
| MLA | Wang, Heying et al. "Empirical formulas for predicting the energy attenuation behavior of primary stress waves in 1D composite chain of viscoelastic spheres" . | INTERNATIONAL JOURNAL OF IMPACT ENGINEERING 183 (2024) . |
| APA | Wang, Heying , Liu, Xiucheng , Ding, Juncai , Wu, Bin . Empirical formulas for predicting the energy attenuation behavior of primary stress waves in 1D composite chain of viscoelastic spheres . | INTERNATIONAL JOURNAL OF IMPACT ENGINEERING , 2024 , 183 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Ferromagnetic components are susceptible to various defects after prolonged service. The defects generated in these components are diverse and exhibit irregular orientation, which may impede comprehensive defect examination using a single magnetic testing method. This paper proposes a novel magnetic measurement sensor that integrates the principles of magnetic flux leakage (MFL) and magnetic field disturbance (MFD). The combined theory is analyzed and validated through the utilization of finite element method (FEM) simulations as well as experimental investigations. By comparing simulation results with experimental data, the composite nature of the signal acquired beneath a magnetic bridge is convincingly demonstrated. In comparison to conventional MFL and MFD methods, this innovative sensor exhibits superior defect detection performance for varying angles and widths, while also addressing some inherent limitations associated with MFL and MFD principles.
关键词 ：
Nondestructive testing Nondestructive testing Magnetic flux leakage Magnetic flux leakage Composite sensor Composite sensor Magnetic field disturbance Magnetic field disturbance
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| GB/T 7714 | Shen, Yang , Wang, Yujue , Wu, Bin et al. A novel sensor based on the composite mechanism of magnetic flux leakage and magnetic field disturbance for comprehensive inspection of defects with varying angles and widths [J]. | NDT & E INTERNATIONAL , 2024 , 145 . |
| MLA | Shen, Yang et al. "A novel sensor based on the composite mechanism of magnetic flux leakage and magnetic field disturbance for comprehensive inspection of defects with varying angles and widths" . | NDT & E INTERNATIONAL 145 (2024) . |
| APA | Shen, Yang , Wang, Yujue , Wu, Bin , Li, Peng , Han, Zhenhua , Zhang, Changhu et al. A novel sensor based on the composite mechanism of magnetic flux leakage and magnetic field disturbance for comprehensive inspection of defects with varying angles and widths . | NDT & E INTERNATIONAL , 2024 , 145 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Quantitative characterization of tensile stress in electroplated nickel coatings on the copper substrate with the thickness range of 2.809 mu m to 35.654 mu m in the elastic stage was experimentally performed with a magnetic incremental permeability (MIP) sensor in the study. Firstly, a differential mutual-inductance sensor based on the parallel excitation of bifilar co-directional coil was proposed. With the proposed sensor, multiple signals including high-frequency eddy current (HFEC), tangential magnetic field strength, and magnetic incremental permeability butterfly curve (MIPBC) could be measured synchronously and eight typical magnetic parameters were obtained from experimental signals. Then, four parameters including the peak height of MIPBC, amplitude at cross point of MIPBC, difference frequency of HFEC, and sum frequency component of HFEC were selected to quantitatively characterize tensile stress. Experimental results showed that the four parameters depended on tensile stress and showed a parabolic trend. The parameters of the parabolic equation varied with nickel coating thickness. Finally, a polynomial surface fitting method based on the combination of the factors of thickness and tensile stress were derived with the selected four parameters and the coefficient of determination R2 was higher than 0.9. The further comparison between theoretical results and predicted stress confirmed that the proposed MIP sensor could realize the quantitative detection of tensile stress in different nickel coatings.
关键词 ：
Thickness Thickness Tensile stress Tensile stress Magnetic incremental permeability Magnetic incremental permeability Electroplated nickel coating Electroplated nickel coating
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| GB/T 7714 | Wang, Nan , Li, Peng , Li, Tuyan et al. Quantitative characterization of tensile stress in electroplated nickel coatings with a magnetic incremental permeability sensor [J]. | SENSORS AND ACTUATORS A-PHYSICAL , 2024 , 368 . |
| MLA | Wang, Nan et al. "Quantitative characterization of tensile stress in electroplated nickel coatings with a magnetic incremental permeability sensor" . | SENSORS AND ACTUATORS A-PHYSICAL 368 (2024) . |
| APA | Wang, Nan , Li, Peng , Li, Tuyan , Wang, Yujue , He, Cunfu , Liu, Xiucheng . Quantitative characterization of tensile stress in electroplated nickel coatings with a magnetic incremental permeability sensor . | SENSORS AND ACTUATORS A-PHYSICAL , 2024 , 368 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Magnetostriction-based electromagnetic acoustic transducer (M-EMAT) is a promising tool for generating fundamental shear-horizontal (SH0) mode guided waves in plate. Though the M-EMAT possesses high-order harmonics excitation ability in nature, its conventional way can only generate a fundamental component of SH0 mode. The analytical modeling was performed in this study to releasing the ability of M-EMAT in generating odd harmonics of SH0 mode. First, the inaccurate conditions of magnetic fields for relative permeability calculation in the existing model are corrected in the proposed model. Second, the error of the existing model in predicting the spectrum of the SH0 mode generated in Nickel plate is estimated. Third, numerical solutions are provided by the improved model to examine the key factors governing the ability of M-EMAT in generating odd harmonics of SH0 mode. The conclusions demonstrated that the intensity ratio (H-S/H-D) of static and dynamic magnetic fields is adjusted below 1 and the ability of M-EMAT in generating odd harmonics of SH0 mode can be activated. The normalized amplitude of 3rd harmonics decays exponentially with the increase of H-S/H-D, which is independent of geometrical parameters of M-EMAT. The improved model can effectively optimize excitation parameters of M-EMAT and generate odd harmonics of SH0 mode in plate.
关键词 ：
analytical model analytical model odd harmonics odd harmonics SH0 mode guided waves SH0 mode guided waves Magnetostriction-based EMAT Magnetostriction-based EMAT
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| GB/T 7714 | Liu, Yao , Wu, Bin , Zhang, Jianwei et al. Excitation of Odd Harmonics of SH0 Mode Ultrasonic Guided Waves Using Magnetostriction-Based EMAT: Theoretical Modeling [J]. | RESEARCH IN NONDESTRUCTIVE EVALUATION , 2024 , 35 (3) : 119-144 . |
| MLA | Liu, Yao et al. "Excitation of Odd Harmonics of SH0 Mode Ultrasonic Guided Waves Using Magnetostriction-Based EMAT: Theoretical Modeling" . | RESEARCH IN NONDESTRUCTIVE EVALUATION 35 . 3 (2024) : 119-144 . |
| APA | Liu, Yao , Wu, Bin , Zhang, Jianwei , He, Cunfu , Liu, Xiucheng , Gao, Xiang . Excitation of Odd Harmonics of SH0 Mode Ultrasonic Guided Waves Using Magnetostriction-Based EMAT: Theoretical Modeling . | RESEARCH IN NONDESTRUCTIVE EVALUATION , 2024 , 35 (3) , 119-144 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
The correlation between multiple patterns of micromagnetic signatures and the mechanical properties (yield strength (Rp) and tensile strength (Rm) of high-strength steel (referred to as DP590 steel in Chinese standards) was investigated in this study. Feedforward neural network (FF-NN) models with carefully selected magnetic features as input nodes were established for quantitative prediction of yield strength and tensile strength. The accuracy FF-NN models highly relied on the quality of calibration specimens and the way of selecting magnetic features. The variations of the measured target properties were used to evaluate the quality of the calibration specimens. The specimens with similar yield strength (or tensile strength) were merged to share the same target properties in the model training process. The results demonstrated that merging proper target properties (label) could improve the performance of the models in quantitative prediction of yield strength and tensile strength in DP590 steels. In addition, the performances of FF-NN models combined with the algorithms of ReliefF and ReliefF + clustering were evaluated. The comparison results proved that the FF-NN models employing input nodes selection strategy of ReliefF + clustering realized the advantages of smaller dimensions of input nodes, less training time consumption at the cost of slight accuracy reduction.
关键词 ：
FF-NN model FF-NN model micro-magnetic testing micro-magnetic testing ReliefF plus Clustering ReliefF plus Clustering tensile strength tensile strength yield strength yield strength
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| GB/T 7714 | Wang, Xianxian , He, Cunfu , Li, Peng et al. Micromagnetic and quantitative prediction of yield strength and tensile strength in DP590 steels based on ReliefF plus Clustering feature selection method [J]. | MEASUREMENT SCIENCE AND TECHNOLOGY , 2024 , 35 (1) . |
| MLA | Wang, Xianxian et al. "Micromagnetic and quantitative prediction of yield strength and tensile strength in DP590 steels based on ReliefF plus Clustering feature selection method" . | MEASUREMENT SCIENCE AND TECHNOLOGY 35 . 1 (2024) . |
| APA | Wang, Xianxian , He, Cunfu , Li, Peng , Liu, Xiucheng , Xing, Zhixiang , Zhang, Yangyang et al. Micromagnetic and quantitative prediction of yield strength and tensile strength in DP590 steels based on ReliefF plus Clustering feature selection method . | MEASUREMENT SCIENCE AND TECHNOLOGY , 2024 , 35 (1) . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
本发明公开了一种非铁磁性材料表面裂纹的三维成像方法，属于无损检测技术领域。其工作步骤为：将待测试件表面涂覆或者浸泡于磁纳米粒子溶液一段时间后，使磁粒子渗入并填充材料表面的裂纹中。之后，将填充磁粒子后的试样置于磁粒子成像系统中，精确测量材料内部的磁粒子三维分布，由此反映出裂纹三维形貌，从而提取出裂纹深度、宽度等信息。所述的表面裂纹三维成像方法具有高空间分辨率、大检测范围及内部结构敏感的优点，可以实现各类航空航天器件等非铁磁材料表面裂纹的无损检测。
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| GB/T 7714 | 吴斌 , 逄旭东 , 李鹏 et al. 一种非铁磁性材料表面裂纹的三维成像方法 : CN202310230980.3[P]. | 2023-03-12 . |
| MLA | 吴斌 et al. "一种非铁磁性材料表面裂纹的三维成像方法" : CN202310230980.3. | 2023-03-12 . |
| APA | 吴斌 , 逄旭东 , 李鹏 , 梁彭福 , 刘秀成 , 王钰珏 . 一种非铁磁性材料表面裂纹的三维成像方法 : CN202310230980.3. | 2023-03-12 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
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.
关键词 ：
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) . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
本发明公开了一种基于多通道微磁传感器的钢板均匀性评价方法，传感器主要由U型电磁铁、多通道磁信号检测组件、封装外壳和滚轴构成。滚轴相对待测钢板滚动，以保持传感器与钢板间的提离距离保持恒定。传感器基于微磁原理，各通道的磁信号检测组件可同步检测钢板表面的3类微磁信号(切向磁场、巴克豪森噪声和增量磁导率)，利用微磁信号特征参量沿扫查路径的分布成像结果，基于变异系数、四分位距、图像均匀度和分形维数等四种统计特征参数，对钢板表面磁特性、微观组织及残余应力均匀性进行无损评价。
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| GB/T 7714 | 吴斌 , 龚麒升 , 刘秀成 . 一种基于多通道微磁传感器的钢板均匀性评价方法 : CN202310351005.8[P]. | 2023-04-04 . |
| MLA | 吴斌 et al. "一种基于多通道微磁传感器的钢板均匀性评价方法" : CN202310351005.8. | 2023-04-04 . |
| APA | 吴斌 , 龚麒升 , 刘秀成 . 一种基于多通道微磁传感器的钢板均匀性评价方法 : CN202310351005.8. | 2023-04-04 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
本发明公布了一种磁弹信号特征参数对索力的定量表征能力综合评价方法。首先，基于磁弹信号特征参数对索力F和温度T的归一化灵敏度，计算灵敏度的当量系数S；其次，计算所有温度条件下加载和卸载过程中线性拟合确定系数的平均值La；再次，计算所有温度条件下拟合曲线的滞回误差的平均值Ha；然后，计算索力增量分辨能力平均值Da；最后，利用评价指标M对磁弹信号特征参数进行综合评价。磁弹特征参数的综合评价指标M值越大，其对索力的表征能力越好。该方法有助于磁弹索力表征新参数的发现和提取，以提升脉冲磁弹法对斜拉桥索索力的检测能力。本发明提取了四个新特征参数，用于实现斜拉桥索力的定量表征。
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| GB/T 7714 | 吴斌 , 闫双胜 , 刘秀成 et al. 一种磁弹信号特征参数对索力的定量表征能力综合评价方法 : CN202310438110.5[P]. | 2023-04-23 . |
| MLA | 吴斌 et al. "一种磁弹信号特征参数对索力的定量表征能力综合评价方法" : CN202310438110.5. | 2023-04-23 . |
| APA | 吴斌 , 闫双胜 , 刘秀成 , 王钰珏 , 李鹏 . 一种磁弹信号特征参数对索力的定量表征能力综合评价方法 : CN202310438110.5. | 2023-04-23 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
本发明公开了一种金属长导丝式温度和应力检测双功能传感器，利用局部多处折弯的回绕型金属长导丝既作为超声导波的传播载体，又作为电涡流激励和接收元件。在金属丝中传播的超声导波遇到局部折弯反射体时将产生模态转换和反射，同一模态超声导波在相邻两个折弯反射体产生的反射信号的传播时间差和两个折弯反射体之间金属丝的平均温度相关。通过在回绕型金属长导丝中设置多个折弯反射体实现多个位置点的温度测量。本发明内容提供的双功能传感器，可以应用于高温变载服役条件下金属结构表面的温度分布测量及应力检测。
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| GB/T 7714 | 吴斌 , 张新梦 , 刘秀成 . 一种金属长导丝式温度和应力检测双功能传感器 : CN202310350998.7[P]. | 2023-04-04 . |
| MLA | 吴斌 et al. "一种金属长导丝式温度和应力检测双功能传感器" : CN202310350998.7. | 2023-04-04 . |
| APA | 吴斌 , 张新梦 , 刘秀成 . 一种金属长导丝式温度和应力检测双功能传感器 : CN202310350998.7. | 2023-04-04 . |
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