基于变频转子叶片的两度自由度驱动原理,用于线性和旋转运动
Xiaotao Li1, Shengjiang Wang1, Xiangyou Peng1
1School of Mechanical and Aerospace Engineering, Nanling Campus, Jilin University, Changchun 130025, China.
Sensors (Basel, Switzerland)
|October 14, 2023
概括
本研究介绍了一种频率可变的线性和旋转运动 (FVLRM) 执行器. 它通过调整工业应用的压电振荡器频率来实现高执行能力.
科学领域:
- 机械工程 机械工程
- 材料科学 材料科学 材料科学
- 机器人技术 机器人技术 机器人技术
背景情况:
- 传统的压电驱动器具有固定的内在频率,限制了它们的驱动能力.
- 变频调动对于提高性能至关重要,特别是在低频范围附近.
研究的目的:
- 提出和验证一种新的变频线性和旋转运动 (FVLRM) 原则,用于两度自由驾驶.
- 为了使执行器能够以可调节的频率工作,以改善工业应用.
主要方法:
- 开发了可变频率压电振荡器 (FVPO),通过改变质量块参数来调整基本频率和振动模式.
- 利用模拟来识别FVPO的变频原理,并进行实验来验证FVLRM原理.
- 测试了一种原型执行器,可调节质量块位置和操作频率.
主要成果:
- 通过模拟和实验,成功验证了FVLRM原则.
- 最大线性运动为3.52mm/s,旋转运动为286.9mrad/s,在第二阶内在频率 (42Hz和43Hz) 实现,质块最远.
- 执行器以低于60Hz的频率工作,提供可调节的自然频率,并提供大工作冲程 (140毫米线性,360度旋转).
结论:
- 拟议的FVLRM原则有效地实现了可变频率的压电驱动.
- 这项技术为需要精确的线性和旋转运动的工业应用提供了增强的执行能力和更大的工作冲程.
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