一种基于多级磁阻线圈电磁发射的微型霍普金森实验装置。

A miniature Hopkinson experiment device based on multistage reluctance coil electromagnetic launch.

作者信息

Huang Wenkai, Huan Shi, Xiao Ying

机构信息

School of Civil Engineering, Guangzhou University, Guangzhou 510006, China.

School of Mechanical and Electric Engineering, Guangzhou University, Guangzhou 510006, China.

出版信息

Rev Sci Instrum. 2017 Sep;88(9):094703. doi: 10.1063/1.5001844.

DOI:10.1063/1.5001844

PMID:28964208

Abstract

A set of seven-stage reluctance miniaturized Hopkinson bar electromagnetic launcher has been developed in this paper. With the characteristics of high precision, small size, and little noise pollution, the device complies with the requirements of miniaturized Hopkinson bar for high strain rate. The launcher is a seven-stage accelerating device up to 65.5 m/s. A high performance microcontroller is used to control accurately the discharge of capacitor sets, by means of which the outlet velocity of the projectile can be controlled within a certain velocity range.

摘要

本文研制了一套七级磁阻式小型化霍普金森杆电磁发射器。该装置具有高精度、小尺寸、低噪声污染的特点，符合小型化霍普金森杆对高应变率的要求。该发射器是一个七级加速装置，最高速度可达65.5米/秒。采用高性能微控制器精确控制电容器组的放电，借此可将弹丸的出口速度控制在一定速度范围内。