Characteristics of Angular Displacement Actuators Based on Magnetostrictive Plates under the Action of Prestressing

2023 International Russian Smart Industry Conference (SmartIndustryCon) Pub Date : 2023-03-27 DOI:10.1109/SmartIndustryCon57312.2023.10110789

P. Grakhov, A. Fedin, V. Yasoveev

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Abstract

This publication presents the results of studies of the static characteristics of actuators for displacements (by means of an example of angular displacements) with a bending type of deformation of the active element – a magnetostrictive bilayer plate with one active layer of 49K2F alloy under the total action of prestresses caused by external forces, moments of internal forces that are induced and arise during a temperature change of a plate made of materials with different values of the temperature coefficients of linear expansion. The article shows the influence of ratios of magnitudes and signs of preliminary moments on the nature of the distribution of elastic stresses across the thickness of the active layers. Relationships have been refined to eliminate zones of an undesirable sign in the distribution of elastic stresses. The prospects of using the action of preliminary moments to achieve greater stability of characteristics with changes in the temperature of the magnetostrictive plate are shown.

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预应力作用下磁致伸缩板角位移作动器特性研究

本出版物介绍了位移致动器静态特性的研究结果(通过角位移的一个例子)，具有主动元件的弯曲型变形-磁致伸缩双层板，其中一层49K2F合金的主动层在外力引起的预应力的总作用下。由具有不同线性膨胀温度系数的材料制成的板在温度变化时产生的内力力矩。本文显示了震级比和初始矩的符号对弹性应力沿活动层厚度分布性质的影响。关系已得到改进，以消除弹性应力分布中不希望出现的符号区域。展望了利用初始矩的作用使磁致伸缩板的特性随温度变化而更稳定的前景。

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2023 International Russian Smart Industry Conference (SmartIndustryCon)

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