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http://dx.doi.org/10.9766/KIMST.2021.24.1.070

A Study on Shock Test Design Method Using Linear Dynamic Model of Light Weight Vertical Shock Test Machine  

Kim, Junhyeok (The 1st Research and Development Institute, Agency for Defense Development)
Oh, Boo-Jin (The 1st Research and Development Institute, Agency for Defense Development)
Im, Damhyeok (The 1st Research and Development Institute, Agency for Defense Development)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.24, no.1, 2021 , pp. 70-78 More about this Journal
Abstract
Naval surface ships and submarines could be exposed to non-contact underwater explosion(UNDEX) environment. Equipment installed on the ships and submarines could be damaged by shock load generated by UNDEX environment. Therefore, shock survivability of equipment generally evaluated by shock tests. Ground based shock test machine such as Light weight shock test machine(LVSM) is developed to simulate shock load caused by UNDEX environment. In this study, linear dynamic model of LVSM is proposed and evaluated to improve shock test design procedure. Parameters of the model are decided by optimizing time domain response compared to zero payload experiment. Proposed model is verified by comparing simulation results and test results of maximum payload experiment. Finally, shock test design using the model is described for various test equipment weight.
Keywords
UNDEX; Shock Test; Shock Test Machine;
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