By imitating skateboarding movement, a novel stick–slip piezoelectric linear actuator was proposed in this study. A specific flexure driving foot mechanism (FDFM) was designed to realize the bionic driving function, and theoretical analysis was conducted to calculate the displacement amplification ratio of the FDFM which was further confirmed by finite element simulation. Being different from most of previous design that the slider moved and the driving mechanism was fixed, here the FDFM was integrated with the slider and they moved together along the guide rail. Being similar to that the train moved along the tracks, this kind of layout would facilitate the realization of larger working stroke of the actuator. By experiments, output characteristics of the designed actuator under various driving frequencies and voltages were tested. The results showed that by changing the waveform of driving voltage, both forward and reverse motions with good linearity and stability could be eas...

中文翻译：

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通过模仿滑板运动设计的新型压电线性致动器

通过模仿滑板运动，本研究提出了一种新型的粘滑压电线性致动器。设计了一种特殊的挠曲驱动脚机构（FDFM）来实现仿生驱动功能，并进行了理论分析以计算FDFM的位移放大率，并通过有限元模拟进一步证实了这一点。与大多数以前的设计不同，滑块移动并且驱动机构是固定的，此处FDFM与滑块集成在一起，并且它们沿着导轨一起移动。与火车沿铁轨行驶相似，这种布局将有助于实现执行器更大的工作行程。通过实验，测试了设计的执行器在各种驱动频率和电压下的输出特性。