微隔振平台的压电致动器设计  

Design of the piezoceramic active member for micro-vibration isolation plate

作　　者：陶帅[1] 白鸿柏[1] 侯军芳[1] 李中伟 

机构地区：[1]军械工程学院自行火炮教研室,河北石家庄050003 [2]武汉士官学院金属工艺教研室,湖北武汉430075

出　　处：《兵器材料科学与工程》2008年第5期47-49,共3页Ordnance Material Science and Engineering

基　　金：国家自然科学基金资助项目(59905016)

摘　　要：为实现微隔振平台的自适应控制,选择具有驱动和传感功能的压电陶瓷材料,在对单片压电陶瓷进行分析的基础上建立压电堆动态模型,设计了一种驱动器。该致动器不仅具有驱动与传感功能,而且具有简单、易加工等特点。通过试验研究,对压电致动器的预压进行标定,并选择合适的预压弹簧,完成对致动器的成品化。结果表明:该压电致动器的位移量大、重复性好,适用于微隔振平台的控制。A new type of intelligent piezoelectric＇ material with the functions of sensation and ac, tuation was chosen to design an actuator for the self-adaptive control of micro-vibration isolation plate.Based on the analysis of one chip of piezoceramic, a model of piezoelectric stack was built and a piezoelectric actuator was designed. The actuator not only had the ability of driving and sensing, but also simple and easy to manufacture.Through the experimental research on the piezoelectric stack, the pre-pressure was demarcated and a proper pre-pressured spring was chosen. The result shows that the actuator has large range and perfect repeatability,and is applicable to the control of micro-vibration isolation plate.

关 键 词：微隔振平台 自适也控制 压电陶瓷 致动器 动态建模 

分 类 号：TP217.3[自动化与计算机技术—检测技术与自动化装置] TB12[自动化与计算机技术—控制科学与工程]