关键词: 推进剂;机械感度;冲击强度;防爆试验;统计分析;蒙特卡罗法

Abstract: The current method of determining critical drop height has some defects as that the precision was bad and the confidence level was low.To resolve these problems, a formula of determining safety impact strength with high confidence and high reliability was given The formula could make full use of the current test data and the test data that accumulated before.By which,a more precise result could be got and the expenditure and time of test were reduced The contrasting analysis of Monte Carlo simulation showed that the formula could not only determining safety impact strength with small samples but also the confidence level of the result was very high An example was give at the end of this paper

Key words: Propellant mechanuical sensitivity;Impact strength;Explosion proof test;Statistical analysis;Monte Carlo method