ABSTRACT

In the present paper, the model in Abdul-Kader et al is modified by incorporating the capability index C_pm to assure the capability of production process and to obtain the process mean, economic specification limits, and quality investment level with minimization of the expected total cost per item. Three modified models are presented and discussed, where Model I firstly determines the optimal process mean and economic specification limits, and then by applying this optimal mean and specification limits, the optimal quality investment level is subsequently obtained, Model II firstly determines the optimal process mean and quality investment level and then, by applying this optimal mean and quality investment level, the economic specification limits are obtained afterwards, and Model III simultaneously determines the optimal process mean, economic specification limits and the optimal quality investment level. Solution procedure for each modified model is provided and a numerical example is given for illustration. Based on the results of sensitivity analysis, Model II is generally superior to the other two modified models under consideration of cost.

摘要

在本文中，通过合并能力指数C _pm修改了Abdul-Kader等人的模型 确保生产过程的能力并获得过程均值，经济规格限制和质量投资水平，同时将每个项目的预期总成本降至最低。提出并讨论了三种改进的模型，其中模型I首先确定最佳过程均值和经济规格极限，然后通过应用该最佳平均值和规格极限，获得最佳质量投资水平，模型II首先确定最佳过程均值。和质量投资水平，然后应用此最佳均值和质量投资水平，随后获得经济规格限制，模型III同时确定最佳过程平均值，经济规格限制和最佳质量投资水平。提供了每种修改后的模型的求解过程，并给出了一个数值示例进行说明。根据敏感性分析的结果，考虑到成本，模型II通常优于其他两个修改的模型。