Open Access
FUZZY INVENTORY MODEL FOR DETERIORATING ITEMS IN A SUPPLY CHAIN SYSTEM WITH TIME DEPENDENT DEMAND RATE
Author(s) -
Srabani Shee,
Tripti Chakrabarti
Publication year - 2020
Publication title -
international journal of engineering applied science and technology
Language(s) - English
Resource type - Journals
ISSN - 2455-2143
DOI - 10.33564/ijeast.2020.v05i01.099
Subject(s) - supply chain , fuzzy logic , operations research , computer science , economics , operations management , business , econometrics , mathematics , artificial intelligence , marketing
An inventory model for a single deteriorating item under fuzzy environment has been presented in this paper. Here demand rate is considered to be constant for some time period, post which the same is a linear function of time. This situation is common during the time of a new product launch in the market. As the product becomes popular, its demand increases with time although it remains constant during the initial days. Cycle time is considered to be constant in most of the models. However, practically it has been observed that it is difficult to pro-actively predict the cycle time. Because of this problem, cycle time has been considered as uncertain and has been further described as Symmetric Triangular Fuzzy number. The Signed Distance method has been used for defuzzification of the total cost function. For illustration of the process for finding the total optimal cost and the cycle time, numerical examples have been considered. The effects of changing parameter values on the optimal solution of the system have been demonstrated through Sensitivity Analysis.