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为优化超磁致伸缩激振器的工作特性,对激振器的磁路结构进行研究和设计,得到了相应的结构参数。结合麦克斯韦电磁学理论建立激振器磁路的有限元模型与动态数学模型,分析导磁体和等效质量对激振器磁路结构和输出特性的影响,得出该激振器相应的设计方案。应用数据分析表明,用此激振器搭建的振动时效平台能够满足时效工件对激振源的要求。
In order to optimize the working characteristics of the giant magnetostrictive exciter, the magnetic circuit structure of the exciter is studied and designed, and the corresponding structural parameters are obtained. Based on Maxwell’s electromagnetism theory, the finite element model and dynamic mathematical model of exciter magnetic circuit were established. The influence of the magnetism and equivalent mass on the magnetic circuit structure and output characteristic of the exciter was analyzed. The corresponding design of the exciter . The application data analysis shows that the vibration aging platform constructed with this exciter can meet the requirements of the aging workpiece on the excitation source.