超磁致伸缩驱动镜放大机构设计与仿真  

Design and Simulation of Amplification Mechanism of Giant Magnetostrictive Driving Mirror

作　　者：闫洪波[1] 牛禹 高鸿 郝宏波 YAN Hong-bo;NIU Yu;GAO Hong;HAO Hong-bo(College of Mechanical Engineering,Inner Mongolia University of Science&Technology,Inner Mongolia Baotou 014010,China;Baotou Research Institute of Rare Earths,Inner Mongolia Baotou 014030,China)

机构地区：[1]内蒙古科技大学机械工程学院,内蒙古包头014010 [2]包头稀土院,内蒙古包头014030

出　　处：《机械设计与制造》2021年第10期24-27,32,共5页Machinery Design & Manufacture

基　　金：科技部创新方法工作专项资助项目(2017M010660)。

摘　　要：为满足超磁致伸缩驱动镜对天文望远镜的输出位移需求,设计了一种基于杠杆式柔性铰链的二级微位移放大机构。通过对柔性铰链转动中心偏移量的分析,推导出放大机构放大率公式;使用ansys有限元软件对其进行静态位移输出特性分析并计算放大率;通过实验对理论分析、有限元仿真进行验证。结果表明三者的放大率基本吻合,相对误差不超过3%,位移放大率接近8倍;放大机构结构简单紧凑、设计合理、可以满足超磁致伸缩驱动镜的输出位移需求。In order to meet the output displacement requirements of the giant magnetostrictive drive mirror for astronomical telescope,a two-stage micro-displacement amplifying mechanism based on a lever-type flexible hinge was designed.Through the analysis of the deflection center of the flexible hinge and the amplification factor formula of the amplification mechanism is derived;The static displacement output characteristics are analyzed and calculated by using ansys finite element software;The theoretical analysis and finite element simulation are verified by experiments.The results show that the magnification of the three is basically consistent,the relative error is less than 3%and the displacement magnification is close to 8 times;The amplifying mechanism has a simple and compact structure and a reasonable design and can meet the output displacement requirement of the giant magnetostrictive driving mirror.

关 键 词：超磁致伸缩驱动镜 放大机构 中心偏移量 放大率 Ansys有限元仿真 

分 类 号：TH112[机械工程—机械设计及理论] TH16