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Material demand scheme design method and system for equipment manufacturing industry

A technology of material requirements and scheme design, applied in manufacturing computing systems, logistics, computing, etc., can solve problems such as difficult to control the production cost of production resources and products, and difficult to solve coordination problems

Active Publication Date: 2018-09-28
WUHAN UNIV OF TECH
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  • Claims
  • Application Information

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Problems solved by technology

Therefore, the problem of cooperation between production arrangement and resource procurement will become difficult to solve, and the problem of supply of production resources will further make it difficult for enterprises to control the production cost of products.

Method used

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  • Material demand scheme design method and system for equipment manufacturing industry
  • Material demand scheme design method and system for equipment manufacturing industry
  • Material demand scheme design method and system for equipment manufacturing industry

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Embodiment Construction

[0066] The present invention will be further described below in conjunction with specific examples and accompanying drawings.

[0067] 1. Description of material procurement problems

[0068] Initialize the enterprise material demand data set Mn and the material property data set Mps. Obtain the demand time point set T={T from the material demand data set Mn i |i=1,2,...,n}, the demand quantity of each material at each demand time point Mq={Mq ij |i=1,2,···,n; j=1,2,···,h}; obtain the material set M from the material attribute set Mp={M i |i=1,2,···,h}, the purchase price of each material Mp={M Pi |i=1,2,···,h}, the inventory management cost of each material per unit time unit quantity Rm={Rm i |i=1,2,...,h}. In consideration of the production cost of the enterprise and the satisfaction of production, it is necessary to purchase all kinds of materials required within the time period of material demand. In order to achieve centralized procurement, it is necessary to combi...

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Abstract

The invention provides a material demand scheme design method for equipment manufacturing industry. The method comprises the steps of determining material demand time points according to a material demand data set and clustering a time point set: clustering the material demand time point set by utilizing an improved K_Means algorithm, and clustering the demand time points suitable to combine material demands for centralized purchase into a category; according to material demand information and material types, determining initial purchase schemes, and establishing optimization constraints of the purchase schemes; selecting the purchase schemes meeting the requirements to form a purchase scheme set; obtaining the fitness of the schemes; according to the fitness of the purchase schemes, optimizing the purchase scheme set by utilizing a GWO optimization algorithm; performing variation on the optimized purchase scheme set, checking the varied purchase schemes by utilizing the optimization constraints, calculating the fitness of new purchase schemes, and performing comparison and replacement with the fitness of the initial purchase schemes; and ending the process until satisfied purchaseschemes are obtained. The data support is provided for purchase of production resources, so that the production cost is reduced.

Description

technical field [0001] The invention belongs to the field of equipment manufacturing materials, and in particular relates to a method and system for designing material demand schemes in the equipment manufacturing industry. Background technique [0002] The equipment manufacturing industry is an advanced manufacturing industry that provides production technology and equipment for the national economy and national defense construction. It mainly produces well mining and open pit mining equipment for mineral resources, large thermal power, hydropower, nuclear power complete sets of equipment and other large and complex technical equipment. These products have high technical content, complicated production process and long production time. In the current market environment, in order to meet the individual needs of customers, companies generally design and produce products according to orders. Because different customers have different requirements for products, for enterprises...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q10/08G06Q50/04G06K9/62
CPCG06Q10/04G06Q10/06315G06Q10/087G06Q50/04G06F18/23213Y02P90/30
Inventor 郭顺生陈志鹏王磊宋东林
Owner WUHAN UNIV OF TECH
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