基于Halbach永磁体阵列的无人机电磁弹射器双边型涡流制动  

Double-Sided Eddy Current Brake of Electromagnetic Launcher for Unmanned Aerial Vehicle Based on Halbach Permanent Magnet Array

作　　者：宋蕾[1] 吴峻[1] 杨宇[1] 

机构地区：[1]国防科技大学机电工程与自动化学院,湖南长沙410073

出　　处：《电机与控制应用》2016年第7期21-26,56,共7页Electric machines & control application

摘　　要：为了提升无人机电磁弹射器的机动性,末段用于制动弹射台的轨道长度必须受到限制,而制动性能又不受影响,提出了一种基于Halbach永磁体阵列的双边型涡流制动装置。利用二维电磁场分析模型,建立了涡流制动力解析式,确立了永磁体及其相关部件的尺寸;针对Halbach阵列的不同组合排列方式,通过仿真对比,确定了旋转30°Halbach阵列组合方式提供的制动力最大。To enhance the maneuverability of electromagnetic launcher （EML） for unmanned aerial vehicle （UAV）, the end orbit for braking the launching platform should be limited without degrading performance. It proposed a double-sided eddy current brake based on Halbaeh permanent magnet array. On the basis of analytical two- dimensional field solutions, the braking force was predicted. The sizes of permanent magnet and other components were given. A comparative simulation was designed. The results showed that 30°rotary Halbach arrangement was considered to be the best one among three different Halbach arrangements.

关 键 词：电磁弹射器 永磁直线电机 Halbach永磁体阵列 双边型涡流制动 

分 类 号：TM351[电气工程—电机] TM359