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首页> 外文期刊>IEEE transactions on industrial informatics >A Comprehensive Dynamic Model for Magnetostrictive Actuators Considering Different Input Frequencies With Mechanical Loads
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A Comprehensive Dynamic Model for Magnetostrictive Actuators Considering Different Input Frequencies With Mechanical Loads

机译：考虑机械载荷的不同输入频率的磁致伸缩致动器的综合动力学模型

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摘要

Magnetostrictive actuators featuring high energy densities, large strokes, and fast responses are playing an increasingly important role in microano-positioning applications. However, such actuators with different input frequencies and mechanical loads exhibit complex dynamics and hysteretic behaviors, posing a great challenge on applications of the actuators. Therefore, it is important to develop a dynamic model that can characterize dynamic behaviors of the actuators, including current-magnetic flux nonlinear hysteresis, frequency responses, and loading effects, simultaneously. To this end, a comprehensive model, which thoroughly considers the electric, magnetic, and mechanical domain, as well as the interactions among them, is developed in this paper. To validate the developed model, the parameters of the model are identified where the hysteresis of the magnetostrictive actuator is described, as an illustration, by the asymmetric shifted Prandtl–Ishlinskii model. The experimental results demonstrate that the comprehensive model presents an excellent agreement with dynamic behaviors of the magnetostrictive actuator.
机译：具有高能量密度，大行程和快速响应的磁致伸缩执行器在微/纳米定位应用中扮演着越来越重要的角色。然而，这种具有不同输入频率和机械负载的致动器表现出复杂的动力学和磁滞行为，这对致动器的应用提出了巨大的挑战。因此，重要的是要开发一种动态模型，该模型可以同时描述执行器的动态行为，包括电流-磁通非线性滞后，频率响应和负载效应。为此，本文开发了一个综合模型，该模型全面考虑了电，磁和机械领域以及它们之间的相互作用。为了验证已开发的模型，可以通过非对称位移的Prandtl-Ishlinskii模型识别模型的参数，并在其中描述磁致伸缩执行器的磁滞，作为说明。实验结果表明，该综合模型与磁致伸缩执行器的动态行为具有很好的一致性。

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