Authors: Amirhossein Amiri; Mahboubeh Mohebbi
Addresses: Industrial Engineering Department, Shahed University, Tehran, Iran ' Industrial Engineering Department, Faculty of Engineering, Payame Noor University, Tehran, Iran
Abstract: In this paper, the EWMA-3 control chart for monitoring simple linear profile is economic-statistically designed. Average run length criterion of the EWMA-3 control chart is computed by using a Markov chain approach. In the proposed model, the Lorenzen and Vance cost function is applied and the parameters of non-conforming production cost are computed based on the Taguchi cost function. The proposed model is solved by a genetic algorithm. Finally, a sensitivity analysis is done on the parameters of the proposed model.
Keywords: economic design; statistical design; simple linear profiles; EWMA-3 control charts; Markov chain; average run length; ARL; exponentially-weighted moving average; control chart design; Taguchi methods; cost function; genetic algorithms; profile monitoring.
International Journal of Quality Engineering and Technology, 2014 Vol.4 No.4, pp.290 - 314
Available online: 19 Jan 2015 *Full-text access for editors Access for subscribers Purchase this article Comment on this article