Research And Application Of Simulation Technology In Storage Layout

The warehouse is foundation of the logistics system's design, it's the place where the cargos spend most time and money in it, supply and consume are linked together by warehouse which is responsible for the buffering and balance. The reasonability of the stock system impacts the efficiency and cost of the logistics system directly.Two methods are used in design of stock system usually: one is analytics, another is computer simulation. Many uncertain factors with stochastic properties and complicated relationships exists in the stock system, so it is hard to model and analyze the stock system using the analytic methods. Computer simulation is known as an efficient method for dealing with stochastic variables in the stock system.The main purpose of this paper is researching the usage of simulation method in the storage system design and helping decision-maker designing their storage system by programming .The main jobs done in this paper are as follows:(1) The related questions involved in the design of storage system, Such as safety-stock ,EOQ, random number and so on. We introduce mainly the meaning of safety-stock and EOQ theory the methods of creating some kinds of random number and how to program for these number.(2) Computer simulation used in dimensions decision of warehouse, firstly, i introduce the analytic methods used in dimensions decision of warehouse. For the shortcoming of analytic methods ,we can get the optimal dimensions of warehouse by computer simulation: we simulate the running process of warehouse by modeling the storage system, calculate the cost of warehouse in this process, so that we can design the most economic dimensions of warehouse considering the order policy and serve level of consumers who have cargos in warehouse.(3) Computer simulation used in inventory policy. The research base on the analyse for the control policy of inventory system. Considering the factor of time-limited consumer, we research optimal inventory policy of the stochastic inventory system by events-attemper methods, model the inventory system and complete the arithmetic of simulation.In this paper, the whole structure of the storage system simulation software is designed and some key function modules are developed. At the end of this paper we analyse a example, we can know how the different inventory policies influence the cost of cargos by analysing results of simulation, and then ,we talk about the prospect of this research after summarizing the full text and bring forward the key points of research in the future.