基于 VCM 和 GMA 的大冲程、高精度同轴集成宏微观复合致动器

IF 1.1 4区 工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC International Journal of Applied Electromagnetics and Mechanics Pub Date : 2024-06-28 DOI:10.3233/jae-230236
Caofeng Yu, Kun Yang, Jingjing Peng, Yijun Wei, Gang Shen, Baokun Li
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引用次数: 0

摘要

通过将音圈电机(VCM)与巨磁致伸缩致动器(GMA)相结合,提出了一种具有大行程和高精度的同轴集成式巨微复合致动器(MMCA)。根据音圈电机的驱动原理建立了大运动部分的磁路模型,根据 Jiles-Atherton 模型建立了微运动部分的多场耦合模型。采用有限元法分析了不同电流下宏观运动部分的位移、输出力、速度、加速度和时间之间的关系,微观运动部分的磁通密度、输出力和位移曲线,并分析了宏观运动部分和微观运动部分之间的相互影响。研制了 MMCA 的原型,并搭建了实验测试平台。结果表明,在开环定位时,MMCA 宏运动位移曲线能很好地贴合仿真曲线;当输入宏运动线圈的电流大小为 4 A 时,MMCA 的实验曲线与仿真曲线最为一致。闭环控制时,驱动器的运动曲线能很好地遵循设定的位移曲线,其中开发的样机最大行程为 50 mm,宏运动部分的定位误差小于 20 μm,微运动部分的最大行程为 40 μm,MMCA 的整体定位精度为 0.14 μm。研究成果为进一步优化和开发高精度、大行程的精密定位平台提供了新的思路和理论依据。
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Large-stroke and high-precision coaxial integrated macro-micro composite actuator based on VCM and GMA
A coaxially integrated macro-micro composite actuator (MMCA) with large stroke and high accuracy is proposed by combining a voice coil motor (VCM) with the giant magnetostrictive actuator (GMA). The magnetic circuit model of the macro-motion part is established based on the driving principle of VCM, and the multi-field coupling model of the micro-motion part is established based on the Jiles-Atherton model. The finite element method was used to analyze the relationship between displacement, output force, velocity, acceleration, and time of the macro-motion part under different currents, the magnetic flux density, output force, and displacement curves of the micro-motion part, and the mutual influence between the macro and micro motion parts were analyzed. The prototype of the MMCA was developed, and an experimental test platform was built. The results show that the MMCA macro-motion displacement curve can fit the simulation curve well during open-loop positioning, and when the current size of the input macro-motion coil is 4 A, the experimental curve of the MMCA is the most consistent with the simulation curve. When closed-loop control, the motion curve of the drive can well follow the set displacement curve, in which the maximum stroke of the prototype developed is 50 mm, the positioning error of the macro-motion part is less than 20 μm, the maximum stroke of the micro-motion part is 40 μm, and the overall positioning accuracy of the MMCA is 0.14 μm. The research results provide a new idea and theoretical basis for further optimization and development of precision positioning platform with high precision and large stroke.
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来源期刊
CiteScore
1.70
自引率
0.00%
发文量
100
审稿时长
4.6 months
期刊介绍: The aim of the International Journal of Applied Electromagnetics and Mechanics is to contribute to intersciences coupling applied electromagnetics, mechanics and materials. The journal also intends to stimulate the further development of current technology in industry. The main subjects covered by the journal are: Physics and mechanics of electromagnetic materials and devices Computational electromagnetics in materials and devices Applications of electromagnetic fields and materials The three interrelated key subjects – electromagnetics, mechanics and materials - include the following aspects: electromagnetic NDE, electromagnetic machines and devices, electromagnetic materials and structures, electromagnetic fluids, magnetoelastic effects and magnetosolid mechanics, magnetic levitations, electromagnetic propulsion, bioelectromagnetics, and inverse problems in electromagnetics. The editorial policy is to combine information and experience from both the latest high technology fields and as well as the well-established technologies within applied electromagnetics.
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