Design and driving characteristics of a novel ‘pusher’ type piezoelectric actuator
Design and driving characteristics of a novel ‘pusher’ type piezoelectric actuator
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DOI：
10.1088/0964-1726/25/1/015005
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发表时间：
2015
影响因子：
4.1
通讯作者：
Shupeng Wang;Zhihui Zhang;L. Ren;Hongwei Zhao;Yunhong Liang;Bing Zhu
中科院分区：
文献类型：
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作者：
Shupeng Wang;Zhihui Zhang;L. Ren;Hongwei Zhao;Yunhong Liang;Bing Zhu
这项研究提出了一种基于夹紧块的新型“推杆”型压电致动器，其中固体动子可以高分辨率驱动，设计行程为 4 毫米。介绍了执行器的工作原理，描述了其关键部件“定子”的设计过程。通过有限元仿真分析了装置结构的合理性。制作了执行器样机并对其主要性能进行了测试。所提出的执行器的驱动特性产生了以下实验结果。运动分辨率为31.5 nm，最大速度为248 μm s−1，最大负载能力为123.5 N，验证了其能够满足高分辨率和大负载能力的精密定位需求。还发现当驱动电压和工作频率改变时，执行器可以实现不同的步进速度。
This study proposes a novel ‘pusher’ type piezoelectric actuator based on clamping blocks, where a solid mover can be driven at a high resolution and with a designed stroke of 4 mm. The working principle of the actuator is presented and the design process of its key component ‘stator’ is described. Via finite element simulation, the rationality of the structure of the device was analyzed. The prototype actuator was manufactured and its main performance was tested. The driving characteristics of the proposed actuator produced the following experimental results. The movement resolution was 31.5 nm, the maximum speed was 248 μm s−1 and the maximum loading capacity was 123.5 N, verifying that it could meet the needs of precise positioning with a high resolution and a large load capacity. The actuator was also found to achieve various step speeds when the driving voltage and working frequency were changed.