Because of the skin effect between the wire and the aluminum plate,the traditional electromagnetic ultrasonic transducer's load efficiency is low. In view of this situation,we design a novel electromagnetic ultrasonic loading device which have transformed the loading coil and the whole structure. Based on the finite element simulation software, the traditional and novel electromagnetic ultrasonic loader finite element analysis models were established separately. After simulating the excitation process,we can get the simulation results (the Lorenz force in aluminum plate,the alternating current density) of the two models.After analyzing and contrasting the simulation results, we get the conclusion:the novel electromagnetic ultrasonic design can effectively improve the loading efficiency.%针对传统的电磁超声换能器导线与铝板间由于集肤效应导致加载效率较低这种情况,设计了一种改造电磁超声加载线圈和整体结构的新型电磁超声加载装置.基于有限元仿真软件,分别建立传统与新型的电磁超声加载器的有限元分析模型,并对其激发过程进行仿真,将两模型所得仿真结果(铝板内洛伦兹力,交变电流密度)进行分析对比.得出结论:新型的电磁超声设计能够显著提高加载效率.
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