Displacement amplifier for piezoelectric actuator based on honeycomb link mechanism
Displacement amplifier for piezoelectric actuator based on honeycomb link mechanism
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DOI：
10.1016/j.sna.2009.10.024
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发表时间：
2010-01-01
影响因子：
4.6
通讯作者：
Sanada, Shin
中科院分区：
文献类型：
--
作者：
Muraoka, Mikio;Sanada, Shin
本文提出了一种紧凑型阵列式压电驱动器机械放大器的设计方案。该放大器模拟具有蝴蝶结类型可重入单元的特定蜂窝的平面内变形。当多层压电致动器导致放大器的单元在纵向上伸长时，该单元导致横向方向上的扩展，并且放大取决于其几何形状。为了便于放大器的制造，提出了一种具有两个孔和一个狭缝的周期性图案的板，其中单元的所有壁和角落分别被刚性铰链和弹性铰链取代。利用单轴驱动器和XY工作台的样机，验证了基于蜂窝连杆机构的放大压电驱动器的紧凑性。更重要的是。讨论了用于放大驱动器设计的理论公式。(C)2009爱思唯尔B.V.保留所有权利。
This study proposes a compact and array-type design of a mechanical amplifier for piezoelectric actuators. The amplifier emulates in-plane deformation of a specific honeycomb having bow-tie-type reentrant cells. When a multilayer piezoelectric actuator causes the elongation of a cell of the amplifier in the longitudinal direction, the cell causes expansion in the transverse direction with amplification depending on its geometry. For ease of fabrication of the amplifier, a plate having periodic patterns of two holes and a slit is proposed, in which all walls and corners of the cell are replaced with rigid links and elastic hinges, respectively. Compactness of an amplified piezoelectric actuator based on the honeycomb link mechanism is demonstrated by using prototypes of uniaxial actuators and XY stages. Furthermore. theoretical formulas are discussed, which are used in the design of the amplified actuators. (C) 2009 Elsevier B.V. All rights reserved.