An economic design of combined double sampling and variable sampling interval (X)over-bar control chart

作者：Lee Pei Hsi; Torng Chau Chen^*; Liao Li Fang

来源：International Journal of Production Economics, 2012, 138(1): 102-106.

DOI：10.1016/j.ijpe.2012.03.006

• Double sampling (X)over-bar chart
• Variable sampling interval (X)over-bar chart
• Economic design
• Genetic algorithms

A combination of double sampling (X) over bar chart and variable sampling intervals (X) over bar chart (DSVSI) can successfully reduce the detection time of small mean shift. Before a DSVSI (X) over bar chart is used, its design parameters should be determined. This study constructs an economic design model of DSVSI (X) over bar chart for the determination of the design parameters. Then, the Genetic Algorithms (GA) are used to solve the optimal designs of DSVSI (X) over bar. chart. Finally, a numerical example is provided to illustrate the use of this model. A sensitivity analysis of the effects of model parameters on the optimal design of DSVSI (X) over bar chart is also performed.

• 出版日期2012-7