基于多点优化法进行可靠性数据折算

为了将非成败型试验数据折算为成败型数据,在分析现有方法局限性的基础上提出多点优化法。该方法于原始置信分布上选取多个折算控制点,并取这些位置点上的误差平方和作为目标函数,进而利用优化算法求解获得折算后的成败型数据和置信分布。该方法没有现有方法的局限性,是一种普遍适用的折算方法。算例表明,该方法较其他现有方法,如二阶矩法,点估计下限法,两点法以及近似优化两点法等,在应用范围、折算精度和计算量方面具有明显的优势,是一种简单而行之有效的折算方法。

Conversion of reliability data based on multi-point optimization method

In order to convert non-binomial data to binomial data, multi-points optimization method is presented in this paper basing on the limitation analysis of the conversion methods. Multi-points optimization method used already, which selected several points as the control points in original confidence distribution. By this method, the sum of the square errors at these points was chose as the objective function. Using optimization algorithm, the equivalent binomial data of the original test data could be got. Th...