A mini desktop impact test system using multistage electromagnetic launch
A mini desktop impact test system using multistage electromagnetic launch
复制标题
采用多级电磁发射的迷你桌面冲击测试系统
DOI：
10.1016/j.measurement.2013.11.029
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发表时间：
2014-03-01
期刊：
影响因子：
5.6
通讯作者：
Xie, Huimin
中科院分区：
文献类型：
--
作者：
Liu, Zhanwei;Chen, Ximin;Xie, Huimin
基于电磁发射的小型化霍普金森杆（SHB）系统已被开发出来。针对传统气动加载系统需要极高气压、测试重复性差、运行噪音大、装置体积大、重量大等缺点，研究了新颖、简单的多级电磁发射技术。详细介绍了一种简单实用的多级电磁发射装置及其工作原理。还介绍了一种简单的发射速度校准技术、消除电磁信号效应和消除条中磁性的方法。采用相同的多级电磁发射装置和主要部件，系统可以在冲击压缩和拉伸模式之间轻松切换，轻松进行小型试件测试。对铝合金冲击压缩和聚酰亚胺/SiO2薄膜冲击拉伸进行了成功的验证试验，验证了系统的可行性和可靠性。 (C) 2013 Elsevier Ltd. 保留所有权利。
A miniaturized Split Hopkinson Bar (SHB) system has been developed based on electromagnetic launch. The novel and simple multistage electromagnetic launch technique has been investigated for being against the drawback of traditional pneumatic loading system, such as the need for very-high air pressures, lack of test repeatability, high operation noise, large size, and large overall weight of the apparatus. The easy and practicable multistage electromagnetic launch device and its working principle are described in details. A simple launch speed calibration technique, methods of eliminating the electromagnetic signal effect and erasing magnetism in bars are also described. With the same multistage electromagnetic launch device and main components, the system could be switched between impact compression and tension modes for mini specimen testing easily. Successful validation tests on aluminum alloy for impact compression and polyimide/SiO2 film for impact tension were carried out for verifying the feasibility and reliability of the system. (C) 2013 Elsevier Ltd. All rights reserved.