eoq模型（EOQ model）.docVIP

eoq模型（EOQ model） This article is contributed by chj2149301 Ppt documents may experience poor browsing on the WAP side. It is recommended that you first select TXT, or download the source file to the local view. The third chapter is economic order quantity (EOQ) Economic Order Quantity 2006, janery, Zhou, All, Rights, Reserved / 1 The third chapter is economic order quantity (EOQ) Inventory levels in fixed order quantities 2006, janery, Zhou, All, Rights, Reserved / 2 Assumptions about the EOQ model The demands are known, continuity and invariance of inventory unit cost is known and constant does not appear out of stock delivery cycle is zero only to a product of independent demand of the product and can not be replaced in the purchase price and the ordering cost does not vary with the quantity of each shipment is the same order so many assumptions. What is the most important? 2006, janery, Zhou, All, Rights, Reserved / 3 Variables involved in 3.1.2 analysis Release order Characteristics of inventory cycle 2006, janery, Zhou, All, Rights, Reserved / 4 Variables involved in 3.1.2 analysis Order quantity Average inventory level User requirements: D / year per unit time demand for bulk orders: Q / per order number, to determine the optimal order batch operation cycle: T between two consecutive replenishment time, such as 0.29 years: UC yuan / unit cost per unit of product price and ordering cost: RC yuan / single order and order independent of the number of holding costs: HC yuan / (a *) holding cost per year 2006, janery, Zhou, All, Rights, Reserved / 5 The derivation of 3.1.3 EOQ 1. to determine the total cost of an inventory cycle 2. to cycle inventory total cost divided by the inventory cycle, the total cost per unit time of 3. to obtain the economic order quantity Q0, make sure the total cost per unit time is minimized. 2006, janery, Zhou, All, Rights, Reserved / 6 1. Determine the total cost of an inventory cycle User requirements: D / Q / year order batch operati