A test method of motion parameters of static explosion based on high-speed photography

DU Bojun; LIU Zeqing; WANG Yalin; XU Yong; LI Qianwu

doi:10.11883/bzycj-2018-0175

Volume 39 Issue 9

Sep. 2019

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DU Bojun, LIU Zeqing, WANG Yalin, XU Yong, LI Qianwu. A test method of motion parameters of static explosion based on high-speed photography[J]. Explosion And Shock Waves, 2019, 39(9): 094101. doi: 10.11883/bzycj-2018-0175

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DU Bojun, LIU Zeqing, WANG Yalin, XU Yong, LI Qianwu. A test method of motion parameters of static explosion based on high-speed photography[J]. Explosion And Shock Waves, 2019, 39(9): 094101. doi: 10.11883/bzycj-2018-0175

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A test method of motion parameters of static explosion based on high-speed photography

doi: 10.11883/bzycj-2018-0175

1.
College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, Hunan, China
2.
Unit 63850 of PLA, Baicheng 137001, Jilin, China
3.
Shijiazhuang Campus, Army Engineering University, Shijiazhuang 050003, Hebei, China

Received Date: 2018-05-24
Rev Recd Date: 2018-12-03
Publish Date: 2019-09-01

Abstract

Abstract

In order to increase the reliability to obtain fragments’ velocities and velocity attenuation coefficients in static explosion experiments, a vision-measurement method based on high-speed photography is proposed in this paper. We use high speed cameras to acquire images and visually solve the fragment trajectory. A kinematic model is then applied to fit fragments’ initial velocities and velocity attenuation coefficients. Experimental results show that the test method is valid which can considerably increase the accuracy of the data.
- high-speed photography,
- vision measurement,
- static explosion test,
- fragment,
- initial velocity,
- velocity attenuation coefficient

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References(15)

References

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