基于力磁耦合效应的金属磁记忆仿真研究
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Simulation Research on Metal Magnetic Memory Based on Force Magnetic Coupling Effect
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    摘要:

    为研究铁磁材料早期损伤和金属磁记忆信号之间的相互关系,结合力磁耦合模型与磁偶极子模型分析了铁磁材料磁导率变化与外加载荷之间的关系,并采用 ANSYS Workbench有限元仿真软件中的静力学与静磁学模块对45号钢试件进行了地磁场下的力磁耦合仿真,得到了不同拉伸应力下试件漏磁场强度的变化规律及法向分量〖WTBX〗B(y)〖WTBZ〗梯度值〖WTBX〗K〖WTBZ〗的分布规律;研究表明:应力集中区的磁记忆信号随应力呈规律性增加,为金属磁记忆检测技术在铁磁材料应力集中区的检测提供了参考依据。

    Abstract:

    To study the relationship between early damage of ferromagnetic materials and metal magnetic memory signals,the relation between the permeability of ferromagnetic material and applied load is analyzed by combining the force magnetic coupling model with the magnetic dipole model.The static magnetic and static magnetic modules of ANSYS Workbench finite element simulation software are used to simulate the force magnetic coupling of 45 steel specimens under the magnetic field.The variation law of leakage magnetic field strength and the distribution law of vertical component B (y) gradient value K are obtained under different tensile stress.The results show that the magnetic memory signal increases with the stress in the stress concentration zone.And the results provide a reference basis for the metal magnetic memory testing technology in the detection of the stress concentration area of ferromagnetic materials.

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钱康, 尹爱军.基于力磁耦合效应的金属磁记忆仿真研究[J].重庆工商大学学报(自然科学版),2018,35(1):1-6
QIAN Kang, YIN Aijun. Simulation Research on Metal Magnetic Memory Based on Force Magnetic Coupling Effect[J]. Journal of Chongqing Technology and Business University(Natural Science Edition),2018,35(1):1-6

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  • 在线发布日期: 2018-01-21
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