Vargas-Chable Pedro, Tecpoyotl-Torres Margarita, Vera-Dimas Gerardo, Grimalsky Volodymyr, Mireles García José
Instituto de Investigación en Ciencias Básicas y Aplicadas-Centro de Investigación en Ingeniería y Ciencias Aplicadas (IICBA-CIICAp), Universidad Autónoma del Estado de Morelos, Cuernavaca 62209, Mexico.
Facultad de Ciencias Químicas e Ingeniería (FCQeI), Universidad Autónoma del Estado de Morelos, Cuernavaca 62209, Mexico.
Micromachines (Basel). 2022 Dec 10;13(12):2189. doi: 10.3390/mi13122189.
Microgrippers are devices that have found applications in various fields of research and industry. They are driven by various actuation methods. In this article, an electrothermal rotary actuator recently proposed in the literature is explored to obtain a novel microgripper design (Model 1). In addition, the use of the rotary actuator as part of the chevron actuated microgrippers (Model 2) is also discussed. The theoretical analysis of the rotary actuator is supported by an equivalent U-shaped-like microactuator. The small error values validate the approximation used. Numerical modeling is performed with ANSYS (Student version 2022, ANSYS, PA, USA). A comparison of theoretical and numerical results provides acceptable error values. The total inter-jaw displacement values obtained for models 1 and 2 are 12.28 μm and 21.2 μm, respectively, and the reaction force is 8.96 μN and 34.2 μN, respectively. The performance parameters of both microgrippers could make their use feasible for different nanoapplications. Model 2 can be used when higher force and displacement are required.
微夹钳是在科研和工业等各个领域都有应用的设备。它们由多种驱动方法驱动。在本文中，研究了文献中最近提出的一种电热旋转致动器，以获得一种新型微夹钳设计（模型1）。此外，还讨论了将旋转致动器用作人字形驱动微夹钳（模型2）的一部分。旋转致动器的理论分析由等效的U形微致动器支持。较小的误差值验证了所采用的近似方法。使用ANSYS（美国宾夕法尼亚州ANSYS公司2022学生版）进行数值建模。理论结果与数值结果的比较提供了可接受的误差值。模型1和模型2获得的夹爪间总位移值分别为12.28μm和21.2μm，反作用力分别为8.96μN和34.2μN。两种微夹钳的性能参数使其在不同的纳米应用中具有可行性。当需要更高的力和位移时，可以使用模型2。
