2 research outputs found
Integrated Supply Chain for a Single Vendor and Multiple Buyers and Products with Crashing Lead Time
In
this study, an integrated inventory model was developed among one vendor, multi
buyers, and multi products. The total inventory cost to be minimized in this
model is a combination of the vendor’s and the buyers’ total inventory costs.
The total vendor inventory costs consist of setup costs and holding costs and
the total inventory cost of the buyer consists of ordering costs, holding
costs, stockout costs, and crashing lead time costs where the crashing lead
time cost is approximated with an exponential function. Three decision
variables will be calculated: the number of buyer orders, the lead time of each
buyer, and the frequency of vendor shipments to all buyers in one production
cycle. In this study, the optimal solution of each decision variable has been
developed and applied to a case to show the use of models for finding optimal
solutions. The sensitivity has also been performed to show the effects of some
factors on the decision variables
The Supply Chain Integrated Inventory Model for Single Product, Multi-Buyer and Multi-Vendor
This paper presents an extended integrated inventory model with multi vendors that produce one item product and supply it to multi buyers. It is assumed that vendor production rates are not equal and the demands of buyers assumed to be normally distributed and independent. The model formulation was made for each buyer and vendor. Then, each cost component from the buyer and vendor is combined to form the total inventory costs. This model uses the service level as constraint. The final mathematical model consists of formulations of the total inventory costs and with certain service level