一种用于微力执行器的新型阿基米德平面弹簧柔性结构

2018 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO) Pub Date : 2018-08-01 DOI:10.1109/3M-NANO.2018.8552164

Chongkai Zhou, Yanling Tian, Fujun Wang, Mingxuan Yang, Dawei Zhang

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引用次数: 0

摘要

设计了一种结构紧凑、刚度低的阿基米德平面弹簧(APS)。利用材料力学的卡斯蒂利亚诺理论和线弹性理论对APS的刚度进行了理论分析。为了优化结构，采用了有限元分析(FEA)。推导的刚度公式的理论计算结果与有限元模拟结果吻合较好。同时，对系统的动态特性进行了仿真，结果表明系统性能稳定可靠。微力由一个电磁系统产生，该系统主要由线圈式电磁阀、永磁体和APS组成。实验结果表明，所设计的系统具有良好的特性，电流分辨率可达0.2 mA。此外，由电磁力与输入电流的曲线可以得到转换速率为3.53µN/mA。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A Novel Archimedes Planar Springs Flexure Structure for Microforce Actuator

An Archimedes planar spring (APS) with lower stiffness and compact structure is designed for a microforce actuator. The theoretical analysis of the APS stiffness is carried out using the Castigliano’s theory and linear elasticity theory of material mechanics. To optimize the structure, the Finite Element Analysis (FEA) is utilized. The theoretically calculated results using the derived stiffness formula agree well with the FEA simulation results. Meanwhile, the dynamic characteristics are simulated, which conforms the stable and reliable properties. The microforce is generated by an electromagnetic system, which is mainly composed of the coil solenoid, permanent magnet and APS. The designed system has a good characteristics with current resolution of 0.2 mA, basing on the experiments. In addition, the conversion rate can be obtained 3.53 µN/mA from the curve between electromagnetic force and the input current.

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2018 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)

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