Joint conomic design of (x)over-bar and R charts under Weibull shock models


Autoria(s): Rahim, M. A.; Costa, AFB
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/09/2000

Resumo

This paper deals with the joint economic design of (x) over bar and R charts when the occurrence times of assignable causes follow Weibull distributions with increasing failure rates. The variable quality characteristic is assumed to be normally distributed and the process is subject to two independent assignable causes (such as tool wear-out, overheating, or vibration). One cause changes the process mean and the other changes the process variance. However, the occurrence of one kind of assignable cause does not preclude the occurrence of the other. A cost model is developed and a non-uniform sampling interval scheme is adopted. A two-step search procedure is employed to determine the optimum design parameters. Finally, a sensitivity analysis of the model is conducted, and the cost savings associated with the use of non-uniform sampling intervals instead of constant sampling intervals are evaluated.

Formato

2871-2889

Identificador

http://dx.doi.org/10.1080/00207540050117341

International Journal of Production Research. London: Taylor & Francis Ltd, v. 38, n. 13, p. 2871-2889, 2000.

0020-7543

http://hdl.handle.net/11449/34676

10.1080/00207540050117341

WOS:000088929900002

Idioma(s)

eng

Publicador

Taylor & Francis Ltd

Relação

International Journal of Production Research

Direitos

closedAccess

Tipo

info:eu-repo/semantics/article