Authors: Abhijeet Ganguly; Saroj Kumar Patel
Addresses: Department of Mechanical Engineering, National Institute of Technology, Rourkela, Odisha-769008, India ' Department of Mechanical Engineering, National Institute of Technology, Rourkela, Odisha-769008, India
Abstract: The basic purpose of the economic design of a control chart is to find the optimum values for control chart parameters to minimise the total cost of process control. This paper deals with the joint economic design of X-bar and R charts. In the present work, simulated annealing which is one of the global optimisation techniques has been employed for the joint economic design. The optimum cost values obtained are compared with that of the earlier designs based on conventional optimisation techniques and are observed to be less.
Keywords: joint economic design; statistical process control; SPC; simulated annealing; X-bar charts; R charts.
International Journal of Process Management and Benchmarking, 2014 Vol.4 No.3, pp.305 - 323
Received: 07 Nov 2013
Accepted: 04 Jan 2014
Published online: 24 Jul 2014 *