非对称欠动微型夹持器的设计、分析和实验研究

IF 2.4 3区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Journal of Intelligent Material Systems and Structures Pub Date : 2024-04-30 DOI:10.1177/1045389x241246827
Zhigang Wu, Yu Wang, Min Chen, Bingxiao Ding
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引用次数: 0

摘要

在本文中,我们介绍了一种新型非对称欠动微型机械手,它可以通过单个压电致动器同时对目标执行扭转和抓取操作。为提高动态性能,设计了两种改进的混合放大机构,并与三种不同的挠性铰链集成。基于伪刚体方法和拉格朗日方程,推导出了微型夹持器的运动学和动力学模型,包括输入刚度、位移放大率和固有频率。通过有限元模拟研究对所提出的模型进行了评估。实验结果表明,我们设计的微型夹具在夹持可靠性和动态响应方面具有良好的性能。
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Design, analysis, and experimental investigations of an asymmetrical under-actuated micro-gripper
In this paper, we present a new asymmetrical under-actuated micro-gripper which can perform twisting and gripping operation to the target simultaneously actuated by a single piezoelectric actuator. Two improved hybrid amplification mechanisms were designed integrated with three different flexure hinges to enhance dynamic performances. Kinematics and dynamics models of the micro-gripper including input stiffness, displacement amplification ratio, and natural frequency based on pseudo-rigid-body method and Lagrange’s equations were derived. Proposed models were evaluated by finite element simulation studies. Experimental results shown that our designed micro-gripper possesses good performance in terms of clamping reliability and dynamic response.
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来源期刊
Journal of Intelligent Material Systems and Structures
Journal of Intelligent Material Systems and Structures 工程技术-材料科学:综合
CiteScore
5.40
自引率
11.10%
发文量
126
审稿时长
4.7 months
期刊介绍: The Journal of Intelligent Materials Systems and Structures is an international peer-reviewed journal that publishes the highest quality original research reporting the results of experimental or theoretical work on any aspect of intelligent materials systems and/or structures research also called smart structure, smart materials, active materials, adaptive structures and adaptive materials.
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