A production lot-size model with Fuzzy-Ramp type demand and fuzzy deterioration rate under permissible delay in payments
by Antara Kundu, Tripti Chakrabarti
International Journal of Mathematics in Operational Research (IJMOR), Vol. 3, No. 5, 2011

Abstract: A production lot-size inventory model is developed with finite production rate, fuzzy deterioration and demand rate under permissible delay in payments. Here it is assumed that the initial demand rate of ramp-type demand and the deterioration rate are uncertain in fuzzy sense i.e., imprecise in nature. The initial demand rate and deterioration rate are taken as triangular fuzzy number. Using α-cut for defuzzification, the total variable cost per unit time is derived. The multi-objective model is solved using Global Criteria Method and is illustrated with a numerical example. Sensitivity analysis has been made for different values of α.

Online publication date: Thu, 12-Feb-2015

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