A Fuzzy multi-objective class based storage location assignment

The required storage space and the material handing cost in a warehouse hinge on the storage implementation decision. Effects of storage area reduction on order picking and storage space cost are incorporated. Moreover merchandises which are in the same shape and can be stored beside each other easily or goods that don't cause any danger like causing a fire if be in touch with each other, can be stored in one class together. In this paper we first present a multi-objective class based storage model in which two objectives are considered; one is the sum of storage space cost and handing cost and the other is the quantitative objective "efficiency of storing products in one class". The demand rates and the second objective are evaluated with linguistic values. We will use fuzzy dynamic approach to solve the proposed model considering an illustrative example to clarify it

Warehouse storage planning; class based storage; storage space; multi-objective decision making; Fuzzy optimization; Dynamic programming