摘要
以旋转型行波超声电机定转子为研究对象,运用动态子结构法和有限元法对定转子进行了机电耦合分析,构建了机电耦合模型,并通过建立定转子机电耦合有限元模型,对压电陶瓷逆压电效应进行研究,得到电信号激励下各阶响应振型和幅频特性;探讨了定子弹性体厚度、齿深,压电陶瓷片厚度、分区方式以及定子弹性体与压电陶瓷片粘接位置对超声电机谐振频率和振幅的影响,为该类型电机的结构优化设计提供了依据。
Taking the rotor of the rotating traveling wave ultrasonic motor as the research object,the dynamic substructure method and the finite element method are used to analyze the electromechanical coupling of the stator and rotor,and the electromechanical coupling model is constructed.The finite element model of the stator and rotor is obtained.The inverse piezoelectric effect of piezoelectric ceramics is studied,and the response modes and amplitude-frequency characteristics of each order under the excitation of electrical signals are obtained.The effects of stator elastomer thickness,tooth depth,piezoelectric ceramic sheet thickness,partitioning mode and bonding position of stator elastic body and piezoelectric ceramic sheet on the resonant frequency and amplitude of ultrasonic motor are discussed,which provides a structural optimization design for this type of motor.
作者
韩雪
韩建超
蔡毅
李君
张加波
齐鑫哲
田昀
HAN Xue;HAN Jian-chao;CAI Yi;LI Jun;ZHANG Jia-bo;QI Xin-zhe;TIAN Yun(Chinese Academy of Space Technology,Beijing 100039,China;Department of Mechanical Engineering,North China Institute of Aerospace Engineering,Langfang Hebei 065000,China)
出处
《组合机床与自动化加工技术》
北大核心
2019年第5期55-58,67,共5页
Modular Machine Tool & Automatic Manufacturing Technique
基金
河北省研究生创新资助项目(CXZZSS2018159)
关键词
超声电机定转子
机电耦合
有限元
谐振频率
振幅
ultrasonic motor stator and rotor
electromechanical coupling
finite element
resonant frequency
amplitude
