压电气动执行器的设计与测试

Xia Liu, Tongyu Wang, Hu Wang, Jun Hou, Jinlong Liu, Xiao-chao Tian
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引用次数: 0

摘要

为了提高微机械气动压力的精密驱动和控制精度,设计并测试了一种以圆形双片压电振荡器为驱动源的新型压电气动执行器。首先,对系统内气体进行了理论和仿真分析,得到了气动执行器输出推力和速度随频率的变化曲线。据此,构建了样机,并在607.677Hz的谐振频率下进行了测试。试验结果表明,气动执行器的最佳加载压力为0.04MPa,最大推力为87.14,是OMPa压力的1.81倍。最大输出速度为26.15mm/s,是OMPa压力的1.29倍。加载适当压力后,气动执行器的输出速度、输出推力和输出步长均增大,驱动电压和频率在一定范围内呈线性增加关系。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Design and testing of piezoelectric pneumatic actuators
The present study reports the design and testing of a novel piezoelectric pneumatic actuator with a circular double-chip piezoelectric oscillator as the driving source to improve the precision driving and control accuracy of micromechanical pneumatic pressure. First, the theoretical and simulation analyses of the gas in the system were conducted, and the variation curves of the output thrust and speed of the pneumatic actuator with frequency were generated. Accordingly, a prototype was constructed and tested at a resonance frequency of 607.677Hz. The testing results revealed that the optimum loading pressure of the pneumatic actuator was 0.04MPa, and the maximum thrust force was87.14,which is 1.81 times the pressure of OMPa. The maximum output speed was 26.15mm/s, which is 1.29times the pressure of OMPa. After loading the appropriate pressure, the output speed, output thrust and output step of the pneumatic actuator increased, and the drive voltage and frequency exhibited a linearly increasing relationship within a certain range.
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