空投产品入水可靠性的评估方法

针对空投某产品时试验多状态、小样本的特点,提出了基于回归折算的性能可靠性评估方法.通过分析投放过程的数学模型,给出入水参数关于投放条件的回归模型,并根据试验数据估计出回归系数.利用回归折算将分散在不同空投条件下的试验数据折算到某一条件下,基于折算后的试验数据得到了较客观的产品入水可靠性评估结果.

On water-entry reliability evaluation methods for airdropped products

In view of the characteristics of multi-states small samples in the trial of airdropped pro-ducts, an evaluating method of performance reliability by regression conversion was proposed. Through analyzing the mathematic model of airdropped process, the regression model of water-entry parameters with airdropped condition was established, and the regression coefficients was estimated by using the tested data. Regression conversion was used to convert data in different conditions to a certain type of airdropped condition. Some accurate reliability evaluation results were obtained by using the converted data. This method is valuable for solving the reliability evaluation in multi-airdropped conditions.