【摘要】 应用有限元方法,建立行波型超声波电机的定子结构的有限元模型,分析定子齿高、齿宽与槽宽比等不同结构参数对定子固有频率和定子振动的影响.结果表明,定子环从"无齿"到"有齿"变化,固有频率下降较快;随着齿高的增加,固有频率变化趋缓,却有助于增大振幅、提高电机转速;齿宽和槽宽比在设计时,宜取大于1.在自行研制的实验平台上,对所设计制作的行波型超声波电机样机的定子频率进行实验测定,发现有限元分析与实验测试结果相符合.更多还原

【Abstract】 In this paper,the stator natural frequency of traveling wave ultrasonic motor is studied theoretically and experimentally.The stator structure of traveling wave ultrasonic motor is introduced.Finite Element Analysis method is used to build the stator prototype.From the stator perspective,the effect of different structural parameters on stator natural frequency and vibration is analyzed.Finally some comparative experiments on prototype motor are conducted on the experimental platform.Experimental results show good agreement with the finite element analysis.更多还原