标题:
叠堆式压电陶瓷基本特性实验研究Experimental Study of the Main Characteristics of Stacked Type Piezoelectric Materials
作者:
麻玉川, 合烨, 陈小安
关键字:
叠堆式压电陶瓷(PZT), 作动器, 静态特性, 动态特性, 迟滞PZT; Actuator; Static Characteristics; Dynamic Characteristics; Hysteresis
期刊名称:
《Mechanical Engineering and Technology》, Vol.1 No.3, 2012-09-28
摘要:
本文针对应用于高速电主轴振动主动控制的叠堆式压电陶瓷(PZT)作动器进行实验测试和分析。主要测试了其基本特性，包括自由状态下的输出位移，不同压力下的输出位移，蠕变特性，PZT的迟滞特性；为主动控制系统提供基础数据。实验结果显示输出特性和外加负载的关系：合适压力下叠堆式压电陶瓷作动器输出位移最大，随着负载压力的增大位移输出迟滞度有一定程度的减小，但是过大的压力会导致输出位移的减小，其在恒定压力下的线性度优于弹性预压力下的线性度；其动态性能满足控制系统的要求。为后续研究提供了科学依据。
In this paper, the stacked piezoelectric actuator which is used in the main spindle vibration suspension were tested and analyzed. The static displacement with variety pressure, creep characteristics. Hysteresis characteristics of PZT were tested to provide data for the active vibration control system. The results show that this kind of materials will output the largest displacement with a proper force exerted on it. The hysteresis phenomena will be relieved while the force gains. However, its displacement will be reduced at the same time. The linearity of PZT under static pressure is better than it under elastic preload. These outcomes provide a scientific grounding for the follow up study.