| Summary: | 碩士 === 國防大學理工學院 === 兵器系統工程碩士班 === 101 === This study is based on experimental methods using temperature and visual imaging techniques to construct M557 delay composition performance experimental measurement equipment. The ignition point, burning rate and output, are investigated to build a M557 fuze reference database. The Taguchi method L_4 〖(2〗^3) level orthogonal 4 is employed to adjust the variation in set conditions. The NASA-Lewis Code (CET86) database format combustion thermodynamic theory of balanced analog computing is used to evaluate the influence of released combustion energy from 4 different proportional delay composition formulations.
The M557 fuze is composed of Zirconium, Trioxide, Chromium trioxide and glue (Zr+MoO_3+Cr_2 O_3+Viton). This fuze has a high burning rate delay composition. Electronic scales are used to fix the experimental delay weight composition. The experimental ignition device components and temperature measurement system are filled into a quartz tube with the auto-transformer and timer. An electric wire is energized to ignite the device. The rapidly burning temperature is measured with the K Type fine style exposed-type thermocouple. This transient high-temperature curve retrieves the records using a high-speed data acquisition system (MultiPro120). Visual imaging technology using high speed camera captures the rapid burning process. Additionally, we placed copper plate in the bottom of quartz tube. The inverse heat transfer theory estimates the rapidly burning pulse heat flux of the M557 delay composition. Comparing the measured and simulated temperatures, the results show that the heat flux estimation method is feasible. Experiments verify the feasibility and practicality of the measurement method, and establish reference of the M557 fuze. The results also provide design application of pyrotechnics field.
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