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A miniature Hopkinson experiment device based on multistage reluctance coil electromagnetic launch
Wenkai Huang1, Shi Huan1, Ying Xiao2
1School of Civil Engineering, Guangzhou University, Guangzhou 510006, China.
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.
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