磁化状态对力磁耦合关系的影响分析
发布时间：2018-07-25 14:41
【摘要】：从宏观和微观两方面分析了磁化状态对力磁耦合关系的影响。从微观角度,在不同的磁化状态下,分析了铁磁构件磁畴结构在外加应力作用下的变化规律;从宏观角度,基于接近原理解释了外加应力是使初始磁化状态不断向无滞后磁化状态靠近的过程,而靠近的方向由无滞后磁化强度与初始磁化强度的差值决定,如果差值大于零,则磁化强度随应力的增大而增大,如果差值小于零,则反之,但无滞后磁化强度又随应力的变化时刻发生变化。为了验证理论分析结果,对三种不同初始磁化状态下的Q235钢进行静载拉伸试验,试验结果与理论分析具有一致性。
[Abstract]:The effect of magnetization state on the magnetomechanical coupling relationship is analyzed from the macro and micro aspects. From the microscopic point of view, under different magnetization states, the variation of magnetic domain structure of ferromagnetic components under the action of applied stress is analyzed. Based on the principle of proximity, it is explained that the applied stress is the process of making the initial magnetization state approach to the unhysteresis magnetization state, and the approach direction is determined by the difference between the hysteresis magnetization intensity and the initial magnetization, if the difference is greater than zero. The magnetization increases with the increase of stress. If the difference is less than zero, the magnetization without hysteresis changes with the change of stress. In order to verify the theoretical analysis results, the static tensile tests of Q235 steel under three different initial magnetization states were carried out. The experimental results are consistent with the theoretical analysis.
【作者单位】： 南昌航空大学无损检测技术教育部重点实验室;
【基金】：国家自然科学基金资助项目(51261023)
【分类号】：TG115.284
，
本文编号：2144140
[Abstract]:The effect of magnetization state on the magnetomechanical coupling relationship is analyzed from the macro and micro aspects. From the microscopic point of view, under different magnetization states, the variation of magnetic domain structure of ferromagnetic components under the action of applied stress is analyzed. Based on the principle of proximity, it is explained that the applied stress is the process of making the initial magnetization state approach to the unhysteresis magnetization state, and the approach direction is determined by the difference between the hysteresis magnetization intensity and the initial magnetization, if the difference is greater than zero. The magnetization increases with the increase of stress. If the difference is less than zero, the magnetization without hysteresis changes with the change of stress. In order to verify the theoretical analysis results, the static tensile tests of Q235 steel under three different initial magnetization states were carried out. The experimental results are consistent with the theoretical analysis.
【作者单位】： 南昌航空大学无损检测技术教育部重点实验室;
【基金】：国家自然科学基金资助项目(51261023)
【分类号】：TG115.284
，
本文编号：2144140
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