新型摩擦变化式压电惯性驱动器  

Novel Piezoelectric Inertial Actuator Based on Changing Frictional Force

作　　者：温建明[1] 马继杰[1] 曾平[1] 张忠华[1] 阚君武[1] 程光明[1] 

机构地区：[1]浙江师范大学精密机械研究所,浙江金华321004

出　　处：《压电与声光》2012年第2期214-217,共4页Piezoelectrics & Acoustooptics

基　　金：国家自然科学基金资助项目(51175478;51075371);浙江省公益性技术应用研究计划基金资助项目(2011C23040);浙江省自然科学基金资助项目(Y1110529)

摘　　要：由于目前压电惯性驱动器普遍采用非对称性信号激励,驱动信号发生与控制系统复杂,该文提出采用对称电信号激励压电元件产生往复相同的惯性冲击力,通过控制机构和支撑面之间的摩擦力,使驱动器定向运动,形成有规律的新型压电惯性驱动器的研究方案。分析了驱动器的工作原理及结构特点,建立了驱动器的动力学模型,设计研制了基于V型导轨的摩擦变化式压电惯性驱动器样机并进行了仿真分析与试验测试,结果表明,提出的新型驱动器具有输出性能稳定,负载特性好,重复定位精度较高等特点。It is difficult to generate and control the driving signal of the existing inertial piezoelectric actuator because it is driven by the asymmetrical signal,so a newly inertial piezoelectric actuator is proposed based on controlling the change of the frictional force between the main body and the supporting surface.The working principle of the actuator is analyzed and the dynamic model is derived,a prototype inertial piezoelectric actuator based on V-type guide is fabricated.Relative experimental tests and simulation analysis are carried out.The experimental results show good agreement with simulation analysis.It can be also seen from the experimental results that the developed actuator features stable output performance,well load characteristics,high repetitive positioning accuracy and suitable for micro-driving application.

关 键 词：压电 惯性驱动 驱动器 摩擦 

分 类 号：TP242[自动化与计算机技术—检测技术与自动化装置]