Abstract
In order to solve the problem of sealing reliability evaluation of extraterrestrial celestial body sample container, by analyze and compare the current commonly used reliability evaluation methods, the maximum entropy test method with the minimum number of sample size is selected to evaluate its reliability and the evaluation process is introduced in detail. The method to choose the container seal leakage rate as the characteristics of sealing performance, through test and calculation in the critical point to implement reliability evaluation. At the same time, in view of the specialty of the seal leakage rate of numerical its margin value calculation method is proposed. The results show that the maximum entropy test method can be used to evaluate the sealing reliability of extraterrestrial celestial body sample container with only a small number of tests, which is better than 0.9999 (confidence level is 0.90), and the evaluation results is check calculated by means of the reliability evaluation by variables method, the results are consistent and credible.
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