高压物理学报2023，Vol.37Issue(6)：89-103,15.DOI:10.11858/gywlxb.20230693
针对电磁感应测速系统的有限元模拟
Finite Element Simulation for Magnet Velocity Induction System
摘要
Abstract
In shockwave experiments,the launch velocity of flyer is a crucial parameter for determining the physical quantities in sample under dynamic compression.Magnet velocity induction system is used to determine the velocity of flyer which can work under hypervelocity conditions.Based on finite element method,ANSYS Electromagnetics Suite module was used to establish a three-dimensional model and the launch process of flyer was simulated.The simulated results well reproduce the experimental signals.Comparing to the experimental results,the relative error of simulated amplitude of induced electromotive force(AIEMF)is 1.1%,lower than the system error of 2.0%.The relative error for flyer velocity determined by simulation is less than 0.4%,also lower than the measurement system error of 0.9%.The dependence of AIEMF with the thickness,radius,tilt angle,launch velocity of flyer and the diameter of pick-up coils is analyzed.The simulation result provides a reference for better signal acquisition in shockwave experiments.关键词
有限元方法/电磁感应测速系统/速度测量/三维模拟/感应电动势Key words
finite element method/magnetic velocity induction system/velocity measurement/three-dimensional model/amplitude of induced electromotive force分类
数理科学引用本文复制引用
吴潇,张乐,马小娟,张明建,刘福生..针对电磁感应测速系统的有限元模拟[J].高压物理学报,2023,37(6):89-103,15.基金项目
国家自然科学基金(41674008,11002120) （41674008,11002120）
四川省自然科学基金(2022NSFSC0340) （2022NSFSC0340）
西南交通大学专项(XJ2021KJZK055) （XJ2021KJZK055）
