IJPAM: Volume 41, No. 6 (2007)

AN EPQ INVENTORY MODEL WITH DETERIORATED
AND IMPERFECT PRODUCTS UNDER FUZZY SENSE

G.C. Mahata$^1$, Pankaj Dutta$^2$
$^1$Department of Mathematics
Sitananda College
Nandigram, Purba Medinipur, West Bengal, 721631, INDIA
e-mail: gourmahata@yahoo.com
$^2$Department of Mathematics
Indian Institute of Technology
Kharagpur, 721302, INDIA
e-mail: pankaj@maths.iitkgp.ernet.in


Abstract.In this paper, we investigate an economic production quantity (EPQ) inventory model with fuzzy demand rate and fuzzy deterioration rate. The effect of loss of production quantity due to old/faulty machines, manufacturing defect, etc. are taken into consideration. To derive the estimate of the fuzzy annual total cost, we use the concept of signed distance method. Numerical example is provided to illustrate the computational procedure. The effect of changes in different parameters on the decision variables is discussed.

Received: July 11, 2007

AMS Subject Classification: 62P20, 90A05

Key Words and Phrases: inventory, fuzzy demand rate, fuzzy deterioration rate, signed distance

Source: International Journal of Pure and Applied Mathematics
ISSN: 1311-8080
Year: 2007
Volume: 41
Issue: 6