Research On The Inventory Control For Spare Parts Of Armarium In N Company

With the development of series of products in N company,armarium has be saled across the country and abroad,the main high-grade digital armarium,such as CT,showed a rapid growth trend.These armariums of N company needs to provide timely maintenance services to ensure its availability,both preventive maintenance and emergency maintenance services are dependent on inventory system support of key spare parts.Because of the randomness of armarium failure,variety of maintenance service types and forecast errors of spare parts demand and so on,led to shortage or sluggish stock in N company,the funds of stock are used seriously,low level of service and other problems.Based on this,the spare parts inventory control has become a difficult and key problem of N company in customer service management.This paper focuses on how to control inventory level of key spare parts according to the fault features,so that the spare parts can not only meet the appropriate service level,but also can reduce the inventory cost to a reasonable range.Finally,the turnover of spare parts will be improved,customer service level will be improved also in N company.In order to achieve the above goal,this paper discusses as the following ideas:(1)To know and summarizes the current of domestic and foreign research and to develop status of inventory control,to introduce the related concepts of spare parts inventory management theory and its applicability.(2)To introduce the status of inventory management of N company and analysis the problems of spare parts in inventory management process,to find out the root cause of that the spare parts service level is low,and the amount of spare parts inventory is large.(3)To draw the history fault graph through collecting life data of spare parts and analyzing failure characteristics.Using the Weibull distribution to fit historical failure curve,determine the key parameters of Weibull distribution.Selection of(t,Q,r)as the key strategy of spare parts inventory control method,to calculate every cost of spare parts inventory,according to the theory of spare parts inventory and the method of linearizing spare parts demand curve,determine the key parameters of this type of inventory strategy,forming a model of spare parts inventory control system.(4)Through validating the spare parts inventory data,evaluated the implementation effect of inventory control between the original methods and new methods,validated the new inventory control method.In this paper,we use the method of simple discussion,and finally get the inventory control model which is suitable for the key spare parts.Based on the practical and simple principles,we hope that this model can be used in practice.