Planejamento econômico de gráficos de controle x com modelo de falha de Poisson

Abstract

Control charts or charts are one of the main tools of statistical quality control to monitor production processes and to improve their capacity by reducing variability. Control charts can be planned from an economic point of view, taking into account the sampling costs, the costs associated with investigating out-of-control signals and possibly correcting attributable causes, and the costs of arriving at the consumer from non-compliant units. All of these costs are affected by choosing the parameters of the control chart. Therefore, the objective of this work is to determine the three optimal parameters, sample size (n), sampling interval (h) and control limits (k) that minimize the expected cost of the production process monitoring system.