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http://dx.doi.org/10.9766/KIMST.2017.20.2.217

Test and Evaluation for Time Delay Function of Point Detonating Fuze by Underwater Sound Analysis  

Na, Taeheum (The 8th Research and Development Institute, Agency for Defense Development)
Jang, Yohan (The 8th Research and Development Institute, Agency for Defense Development)
Jeong, Jihoon (The 8th Research and Development Institute, Agency for Defense Development)
Kim, Kwanju (Department of Mechanical and System Design Engineering, Hongik University)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.20, no.2, 2017 , pp. 217-224 More about this Journal
Abstract
This study proposes an evaluation method for time delay function(TDF) of Point Detonation(PD) fuse using underwater explosion and water entry phenomena. Until now, nothing but the naked eyes of an observer or video images have been used to determine whether the TDF of PD fuze is operated or not. The observer has verified the performance of TDF by analysing the shape of the plume formed by underwater explosion. However, it is very difficult to evaluate the TDF of PD fuse by these conventional methods. In order to overcome this issue, we propose a method using underwater sound signal emitted from the underwater explosion of high explosive charge. The result shows that the measured sound signal is in accord with the physical phenomena of water entry of warhead as well as underwater explosion. Also, from the hypothesis test of bubble period, difference on underwater sound analysis between dud event and delay one is proved.
Keywords
Underwater Sound; Point Detonating Fuze; Underwater Explosion; Water Entry;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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