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Research on Classification of Spare Parts Inventory on Considering Equipment Criticality

Author: ZhangZhiYan
Tutor: LiRongPing；FengZhenJiang
School: Hebei University of Science and Technology
Course: Industrial Engineering
Keywords: Spare parts inventory management ABC classification Analytic Hierarchy Process Fuzzy Comprehensive Evaluation
CLC: F272
Type: Master's thesis
Year: 2010
Downloads: 84
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Abstract

With China’s accession to the WTO. economic globalization trend has become increasingly evident. The enterprises have to face not only competition between domestic enterprises, but also to accept the challenge of international business. Spare parts is material to maintain manufacturing enterprises’ simple reproduction and reliable guarantee to ensure equipment uptime and smooth production. So, spare parts management role in the enterprise management is very clear. Its economic efficiency of enterprises have a crucial impact. and is a professional. highly technical and involve a wide range of complexity of management. Spare parts management directly affect the normal production and operation activities. Reasonable classification of spare parts in inventory is a premise and focus of enterprise spare parts inventory management. Currently, the company’s ABC classification method widely used to prioritize the species inventory. focus. both in general, but this approach ignores differences in the characteristics between inventory material and evaluation methods prone to subjectivity. the initial value dependence. and so easy to fall into local minimum problems. So how to make a simple and practical spare parts inventory classification method according to their own characteristics and considering equipment criticality is of great significance for the protection of the normal production activities and enhancing the competitiveness of enterprises.Existing spare parts inventory management theory as a guide and based on the research and application results of spare parts inventory classification. spare parts inventory classification model considering the equipment criticality was proposed by qualitative and quantitative methods.First, starting from the basic theory of spare parts inventory management, the definition. function and classification of inventory management were descripted. the concept of spare parts and spare parts inventory management were introduced and main contents of spare parts inventory management were analyzed. And several common Spare parts classification method were discussed. Base on this, focus on analyzing classification criteria and inventory management principles and their implementation and maintenance of ABC classification.Then. according to key factors of influencing the equipment which spare parts belongs to and spare parts criticality. spare parts criticality evaluation index system considering the equipment criticality was constructed. Multi-level fuzzy evaluation method was proposed based on AHP and fuzzy comprehensive evaluation method. Based on the results, spare parts classification criteria were proposed.Finally, spare parts inventory classification method considering the equipment criticality was applied to spare parts inventory management practices of No.1 Steel-making Plant of Chengde Iron and Steel Group Co. and the implementation results of the classification was discuss and the effectiveness and feasibility were demonstratea.

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