نام فارسی : یک مدل ریاضی بر پایه EPQ برای تقاضای تصادفی در یک سیستم تولید ناقص
نام انگلیسی A mathematical model on EPQ for stochastic demand in an imperfect :
production system
زبان : انگلیسی
سال: 2013
مجله :Journal of Manufacturing Systems
چکیده:
In the paper, we develop an EPQ (economic production quantity) inventory model to determine the optimal buffer inventory for stochastic demand in the market during preventive maintenance or repair of
a manufacturing facility with an EPQ (economic production quantity) model in an imperfect production
system. Preventive maintenance, an essential element of the just-in-time structure, may cause shortage
which is reduced by buffer inventory. The products are sold with the free minimal repair warranty (FRW)
policy. The production system may undergo “out-of-control” state from “in-control” state, after a certain
time that follows a probability density function. The defective (non-conforming) items in “in-control” or
“out-of-control” state are reworked at a cost just after the regular production time. Finally, an expected
cost function regarding the inventory cost, unit production cost, preventive maintenance cost and shortage cost is minimized analytically. We develop another case where the buffer inventory as well as the
production rate are decision variables and the expected unit cost considering the above cost functions is
optimized also. The numerical examples are provided to illustrate the behaviour and application of the
model. Sensitivity analysis of the model with respect to key parameters of the system is carried out.
یک مدل ریاضی بر پایه EPQ برای تقاضای تصادفی در یک سیستم تولید ناقص
