High-speed tear as a new type of weaponry in the field of counter-terrorism,law and order,and personal protection and other public security has a broad application prospect,however,transient assessment for high-speed jet equipment is still insufficient.Therefore,this paper sets up a transient acquisition system of high-speed jet,which is mainly composed of high-speed camera system and dynamic force acquisition system,based on which,the transient velocity and impact force of high-speed jet at close range are investigated,and the experimental results show that,the high-speed jet at the mouth of the launching device is a cylindrical cluster transfer,the trajectory diameter is not uniform,the exit velocity can be up to 98 m/s,and the transient impact force lasts for 4 ms,the peak impact force reaches 464 N at the launch port,and this study lays a foundation for the efficiency evaluation of high-speed jet equipment.
维普
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