ASRP자료를 이용한 155MM 추진장약 KM4A2 저장수명 추정 연구 = A Study on the Estimation of Shelf-life for 155mm propelling charge KM4A2 using ASRP`s data

다국어 초록 (Multilingual Abstract)

Purpose: The purpose of this study is to provide a statistical method from the data of ASRP’s results and to apply to the reliability assessment of 155mm propelling charge, KM4A2. Methods: The accumulated data through ASRP for 155mm propelling charge were analyzed using regression analysis and MINITAB reliability analysis. The analysis methods used for this study were applied to statistical data types such as continuous data, binominal data. Results: The results of this study are as follows; The failure of 155mm propelling charge is mainly due to the broken charge bag, the decline of stabilizer content. The shelf-life(B5) regarding broken charge bag is 21.1years. The stabilizer content decrease with 0.0227%/year and safety storage period of propellant is 34.6years. Conclusion: The shelf-life of 155mm propelling charge determined by charge bag is estimated 21.1years.

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