inventorymanagement倉(cāng)儲(chǔ)管理-資料下載頁(yè)
2025-01-09 00:46本頁(yè)面
【正文】 order point, R Q LT Time LT Inventory level 0 Safety Stock Copyright 2022 John Wiley amp。 Sons, Inc. 1233 Reorder Point With Variable Demand R = dL + z?d L where d = average daily demand L = lead time ?d = the standard deviation of daily demand z = number of standard deviations corresponding to the service level probability z?d L = safety stock Copyright 2022 John Wiley amp。 Sons, Inc. 1234 Reorder Point for a Service Level Probability of meeting demand during lead time = service level Probability of a stockout R Safety stock dL Demand z?d L Copyright 2022 John Wiley amp。 Sons, Inc. 1235 Reorder Point for Variable Demand The carpet store wants a reorder point with a 95% service level and a 5% stockout probability d = 30 yards per day L = 10 days ?d = 5 yards per day For a 95% service level, z = R = dL + z ?d L = 30(10) + ()(5)( 10) = yards Safety stock = z ?d L = ()(5)( 10) = yards Copyright 2022 John Wiley amp。 Sons, Inc. 1236 Order Quantity for a Periodic Inventory System Q = d(tb + L) + z?d tb + L I where d = average demand rate tb = the fixed time between orders L = lead time ?d = standard deviation of demand z?d tb + L = safety stock I = inventory level Copyright 2022 John Wiley amp。 Sons, Inc. 1237 FixedPeriod Model with Variable Demand d = 6 bottles per day ?d = bottles tb = 60 days L = 5 days I = 8 bottles z = (for a 95% service level) Q = d(tb + L) + z?d tb + L I = (6)(60 + 5) + ()() 60 + 5 8 = bottles Copyright 2022 John Wiley amp。 Sons, Inc. 1238 Copyright 2022 John Wiley amp。 Sons, Inc. All rights reserved. Reproduction or translation of this work beyond that permitted in section 117 of the 1976 United States Copyright Act without express permission of the copyright owner is unlawful. Request for further information should be addressed to the Permission Department, John Wiley amp。 Sons, Inc. The purchaser may make backup copies for his/her own use only and not for distribution or resale. The Publisher assumes no responsibility for errors, omissions, or damages caused by the use of these programs or from the use of the information herein.
公司管理相關(guān)推薦
鄂ICP備17016276號(hào)-1