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以实验室电磁激振器样机为基础,基于电磁场有限元理论,建立了电磁激振器样机的二维电磁场仿真模型,分析了电磁激振器工作时的冲锤受力现象和磁场分布规律,计算得到了磁力线分布、磁感强度分布和运行过程中冲锤受力变化规律等结果,研究了电磁激振器的磁储能和磁共能的能量变化规律,分析了样机模型的磁饱和特性.计算结果表明:电磁场有限元模型能较全面的反应电磁激振器的电磁场特性,为进一步设计研究电磁激振器提供一定的参考.
Based on the laboratory electromagnetic exciter prototype, based on the finite element theory of electromagnetic field, a two-dimensional electromagnetic field simulation model of the electromagnetic exciter prototype is established. The force of the hammer and the magnetic field distribution are analyzed. The distribution of magnetic flux, the distribution of magnetic induction intensity and the rule of the change of the hammer’s weight during operation are calculated. The variation of the magnetic energy storage and the magnetic energy of the electromagnetic exciter are studied. The magnetic saturation characteristics of the prototype The calculated results show that the electromagnetic field finite element model can comprehensively reflect the electromagnetic field characteristics of the electromagnetic exciter and provide some references for the further design and study of the electromagnetic exciter.