شماره ركورد كنفرانس :
3224
عنوان مقاله :
Economic and Economic Statistical Design of X−Control Charts Under a Bathtub-shaped Shock Model
پديدآورندگان :
Khadem Y Department of Statistics - Allameh Tabatabai University, Tehran , Pasha M. A Department of Statistics - Allameh Tabatabai University, Tehran , Moghadam M. B Department of Statistics - Allameh Tabatabai University, Tehran , Fani Sh Department of Statistics - Allameh Tabatabai University, Tehran
كليدواژه :
Economic Design , Economic Statistical Design , Process Failure Mechanism , Bathtub Failure Rate , Integrated Hazard over sampling interval
سال انتشار :
ارديبهشت 1395
عنوان كنفرانس :
دومين سمينار تخصصي نظريه قابليت اعتماد و كاربردهاي آن
چكيده لاتين :
The optimal design parameters of the economic and economic statistical designs
of control charts depend mainly on the reliability of the system that can be regarded
as the process failure mechanism, shock model of the system, lifetime distribution of
the process, or the assignable cause occurence time. In this paper, we presented a cost
model under a bathtub-shaped (U-shaped) failure rate lifetime distribution that starts
at optimum burn-in time at the beginning of a product cycle and then remarkably
decreases in the early stage toward an approximately constant hazard rate during the
useful life stage. Afterwards, the failure rate starts to increase with the onset of wear
out. The generalized cost model of Rahim and Banerjee (1993) is applied to achieve
the optimal design parameters under both uniform and nonuniform sampling schemes.
