摘要
为检验一种面内行波旋转超声电机定子结构动力学设计的优化设计方法,探讨了一类利用圆环面内弯振模态超声电机定子的模态试验方法。首先,分析了该面内行波旋转超声电机的工作原理;然后,基于有限元分析软件建立了电机的有限元模型,分析了其工作模态的特点;最后,结合PSV-300-B型激光扫描多普勒测振仪的测量原理,提出了通过测量圆环轴向振型识别该类型超声电机工作模态的测试方法。试验结果表明,该方法能够有效地检测出该面内行波旋转超声电机的工作模态,为利用圆环面内弯振模态的一类超声电机的模态试验和进一步优化设计提供了参考。
To verify the stator dynamics design of rotary ultrasonic motor using in-plane travelling wave and provide methods for further optimizing,a modal testing method for this type of ultrasonic motor is discussed.Firstly,the operating principle of a rotary ultrasonic motor using in-plane travelling wave is presented.Secondly,based on FEA method,the modal analysis is conducted in order to identify the features of the ultrasonic motor.By measuring axial vibration mode of disc-shaped stator,working modes of this type of ultrasonic motor are identified using laser Doppler vibrometer PSV-300-B.Experimental results show that the modal testing method is effective to identify operating modes of ultrasonic motors using in-plane bending modes and provides a convenience way for motor design and verification.
出处
《振动．测试与诊断》
EI
CSCD
北大核心
2011年第5期596-599,664,共4页
Journal of Vibration,Measurement & Diagnosis
基金
国家自然科学基金资助项目(编号:50735002
90816003)
关键词
超声电机
面内行波
模态试验
激光多普勒测振
ultrasonic motor travelling wave mode testing laser Doppler vibrometer
