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Stock control method based on optimum replenishment period of spare part

A technology of inventory control and spare parts, applied in the field of warehouse management, can solve problems such as shortage of spare parts, chaotic management, backlog of spare parts, etc.

Active Publication Date: 2015-06-24
GUANGZHOU METRO GRP CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

At present, many enterprises in our country have problems in the spare parts management of highly automated equipment such as subway trains: inventory occupies a large amount of enterprise resources, the inventory structure is unreasonable, some spare parts are seriously backlogged, and some spare parts are often out of stock, and the variety of spare parts leads to management confusion.

Method used

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  • Stock control method based on optimum replenishment period of spare part
  • Stock control method based on optimum replenishment period of spare part
  • Stock control method based on optimum replenishment period of spare part

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Establish an inventory control process and build an inventory control model, including:

[0021] Step 1) Calculate the total cost W in the replenishment cycle;

[0022] Among them, the total cost W in the replenishment cycle is calculated, specifically:

[0023] According to the input formula Calculate the total cost W in the replenishment cycle, where T is the replenishment cycle of spare parts, t is the replenishment cycle between two orders, Ri is the average consumption rate of spare parts, P is the price of spare parts per unit, h is the storage cost of spare parts per unit time, H is other storage costs in the replenishment cycle, E is the storage safety stock, S is the cost of a single purchase, n is the number of purchases in a replenishment cycle, and Q is the batch size of each purchase.

[0024] Step 2) Calculate...

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Abstract

The invention provides a stock control method based on an optimum replenishment period of a spare part, and aims at lowering the cost of spare part stock of a company. By means of the influence of a replenishment period of the spare part on the stock level, a complete stock control module based on the optimum replenishment period of the spare part is provided, and the stock of the spare part of the company is optimized. By means of the history requirement characteristic of the spare part and costs such as spare part purchasing and storing, a spare part optimum replenishment time and the safety stock of the spare part storing of the spare part in one replenishment period are judged, and the replenishment sending time and the replenishment batch of the spare part are judged by combining the requirement predicted value of the spare part.

Description

technical field [0001] The invention belongs to the field of warehouse management, and in particular relates to an inventory control method based on the optimal replenishment cycle of spare parts. Background technique [0002] The common methods of spare parts inventory control mainly include inventory control based on spare parts demand forecast, inventory control based on spare parts replenishment cycle, inventory control based on spare parts shortage and loss, etc. Cui Nanfang et al. conducted research from the perspective of parts life function, and gave a high-value slow-moving spare parts inventory control model based on parts life function. Koopman, Kimball studied the corresponding inventory control strategy when the demand rate is a linear function. Ritchie solves the problem that the demand rate fitting function is complex and difficult to solve by using a simple straight line segment fitting solution method. At the same time, Ritchie also studies the inventory co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/08G06Q50/28
Inventor 丁建隆何霖龙静杨玲芝李兆新卢勇高金东
Owner GUANGZHOU METRO GRP CO LTD
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