摘要
利用自行研制的浮动式压电振动机构,运用有限元分析软件ANSYS对机构振动模态进行了有限元分析发现,不同的工作频率其振动模态不同。当工作频率为934Hz时,机构出现向前的滑移动或倒移动;工作频率为670Hz时,在2个驱动足的底部形成"局部椭圆运动",机构向前移动;工作频率为1176Hz时,机构为向前滑移动或跳移动;工作频率为327Hz时,机构出现侧移动或原地扭动;工作频率为498Hz时,机构原地转动。这些理论上的分析对实际过程中的应用起到了一定的指导作用。
ANSYS was used to analysis the vibration mode of the mechanism by the floating piezoelectric vibration device which was developed by us. Analysis showed different working frequency with different vibration mode. when the working frequency was 934 Hz,the mechanism was sliding forward or backward;when the working frequency was 670 Hz,the mechanism was moving forward because of the ＂local elliptical motion＂ of both the bottom of the drive-feet,when the working frequency was 1 176 Hz,the mechanism was sliding forward or jumping;when the working frequency was 327 Hz,the mechanism was moving to the side or twisting in situ;when the working frequency was 498 Hz,the mechanism was rotating in situ. These theoretic analyses would more or less guide the following practical application.
出处
《压电与声光》
CSCD
北大核心
2009年第6期924-926,共3页
Piezoelectrics & Acoustooptics
基金
博士后科学基金资助项目(2005037704)
关键词
压电
行走机构
振动模态
局部椭圆运动
piezoelectricity walkofing vibration mode local elliptical motion
