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一个自行行驶的线性压电微型执行器,灵感来自水生甲虫的运动模式

Xinjie Wang¹, Gen Wang¹

¹School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.

|October 26, 2024

概括

这项研究介绍了最小的双向自动行驶线性压电微型执行器 (SLPMA),灵感来自水生甲虫. 它通过叠加的曲振动来实现运动,提供了一种新的微型驱动解决方案.

科学领域:

仿生学和微型机器人学
材料科学与工程材料科学与工程

背景情况:

昆虫的运动为微型执行器设计提供了灵感.
水生甲虫的运动为自行驱动机制提供了一个模型.

研究的目的:

为了展示一个新的,紧的,双向的自行行驶的线性压电微型执行器 (SLPMA).
为了模仿水生甲虫的运动,用于微型驱动.

主要方法:

有限元分析 (FEA) 用于设计优化和尺寸确定 (15 mm × 12.8 mm × 5 mm).
数学建模以验证执行器的设计可行性.
原型制造和驾驶特征的实验测试.

主要成果:

通过叠加两个曲振动模式,SLPMA产生圆运动轨迹.
前进运动:最大无负荷速度为17.3mm/s,最大承载载荷为14.8mN.
向后运动:最大无负荷速度20.5mm/s,最大承载载荷15.9mN.

结论:

开发的SLPMA是目前已知的最小的自动推进型压电线性微型执行器.
该设计成功地将仿生原理转化为功能微型执行.
实验结果验证了执行器在微操作和推进应用中的性能.

关键词:

驾驶特征驾驶特征驾驶特征模拟有限元素的模拟.这是一种共振类型的共振.自行式压电线性微型执行器

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