Giant Magnetostrictive Drive Deflection Amplifier

Zhang Chong; Zhou Chungui; Fan Junjian

doi:10.16578/j.issn.1004.2539.2018.01.032

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Giant Magnetostrictive Drive Deflection Amplifier

更新时间：2022-10-20

- Giant Magnetostrictive Drive Deflection Amplifier
- Vol. 42, Issue 1, Pages: 155-158(2018)
- 作者机构：
  
  1. 中北大学机电工程学院
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2018.01.032
  CLC：
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[1]张冲,周春桂,范君健.超磁致伸缩驱动偏转放大机构[J].机械传动,2018,42(01):155-158+162.

Zhang Chong, Zhou Chungui, Fan Junjian. Giant Magnetostrictive Drive Deflection Amplifier. [J]. 42(1):155-158(2018)
[1]张冲,周春桂,范君健.超磁致伸缩驱动偏转放大机构[J].机械传动,2018,42(01):155-158+162. DOI： 10.16578/j.issn.1004.2539.2018.01.032.

Zhang Chong, Zhou Chungui, Fan Junjian. Giant Magnetostrictive Drive Deflection Amplifier. [J]. 42(1):155-158(2018) DOI： 10.16578/j.issn.1004.2539.2018.01.032.

摘要

偏转弹通过控制弹头相对于弹体偏转一定角度改变弹箭的气动特性和弹道特性,实现对弹箭落点的控制。基于该背景设计了一种柔性铰链放大机构,放大超磁致伸缩驱动器（GMA）的输出位移。首先对放大机构可输出的最大位移进行推导和计算。然后在给定位移下,计算得出输入作用力和输出位移存在线性关系,通过有限元软件仿真验证了线性关系的存在,并与计算结果对比,得出结构内部反力的存在造成额外位移损失。最后结合GMA输出力可控原理,推导出放大机构输出位移和GMA输出力、总磁化强度间的关系。

Abstract

The deflector by controlling the warhead relative to the missile deflection of a certain angle to change the aerodynamic characteristics and trajectory characteristics of the projectile to achieve the control of the shooting point. Based on this background,a flexible hinge amplifier is designed to amplify the output displacement of the Giant Magnetostrictive Actuator（GMA）. First of all,the maximum output displacement of the amplification mechanism is deduced and calculated. Then,under the given displacement,it is calculated that there is a linear relationship between the input force and the output displacement. The existence of the linear relation is verified by the simulation of the finite element software,compared with the calculated results,it is concluded that the existence of internal reaction force causes additional displacement loss. Finally,combined with the control principle of GMA output force,the relationship between output displacement and GMA output force and total magnetization is deduced.

关键词

偏转弹头柔性铰链位移损失超磁致伸缩驱动器

Keywords

Deflected warheadFlexible hingeDisplacement lossGiant magnetostrictive actuator

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