Nonlinear dynamic characteristics of two-dimensional micro-positioning workbench based on giant magnetostrictive actuators

IF 1.1 4区 工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC International Journal of Applied Electromagnetics and Mechanics Pub Date : 2023-05-22 DOI:10.3233/jae-220283
Caofeng Yu, Kun Yang, Zhihao Xiao, Yinjie Wei, Xuefeng Tao, Ganyong Wu
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Abstract

Studying the nonlinear dynamic characteristics of multi-field coupling of the giant magnetostrictive actuator (GMA) is one of the main ways to improve its output performance. Because of the problem that its multi-field coupling nonlinear dynamic characteristics are difficult to accurately describe, the multi-field coupled nonlinear dynamic model of GMA and two-dimensional micro-positioning workbench is established according to the Jiles–Atherton hysteresis model, magnetostrictive model, hysteresis nonlinear magnetic equation and the structural dynamics principle of GMA, respectively. The influence of equivalent damping coefficient, equivalent stiffness, and equivalent mass on the dynamic characteristics of each model is analyzed, and finally, the constructed model and the obtained law are experimentally verified. The results show that the displacement curve calculated by the model is consistent with the experimentally measured displacement curve, the influence of the equivalent damping coefficient, equivalent stiffness, and equivalent mass on the dynamic characteristics of the model measured by the experiment is consistent with the simulation analysis results, and the maximum error of the output displacement is 1.779 um, which verifies the correctness of the model. The research results provide a theoretical basis for improving the dynamic characteristics of GMA and improving the output performance of two-dimensional micro-positioning workbenches.
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基于超磁致伸缩作动器的二维微定位工作台的非线性动态特性
研究超磁致伸缩作动器多场耦合的非线性动态特性是提高其输出性能的主要途径之一。针对GMA多场耦合非线性动态特性难以准确描述的问题,分别根据Jiles-Atherton磁滞模型、磁致伸缩模型、磁滞非线性磁方程和GMA的结构动力学原理,建立了GMA和二维微定位工作台的多场耦合非线性动力学模型。分析了等效阻尼系数、等效刚度和等效质量对各模型动态特性的影响,最后对所建立的模型和得到的规律进行了实验验证。结果表明,模型计算得到的位移曲线与实验实测位移曲线吻合,等效阻尼系数、等效刚度和等效质量对实验实测模型动态特性的影响与仿真分析结果吻合,输出位移最大误差为1.779 um,验证了模型的正确性。研究结果为改善GMA的动态特性,提高二维微定位工作台的输出性能提供了理论依据。
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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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