Key Technologies Of Maintenance Status Management For Long Lifecycle Manufacturing Equipment

The product configuration was changed by different kinds of maintenance activities in maintenance stage of product lifecyle, the equipment maintenance status is technical information to describe the evolvement of product configuration in maintenance stage, and therefor the maintenance status management for long lifecycle manufacturing equipement is foundation technique for Product Lifecycle Management and equipment maintenance management. This dissertation studied the description model of equipement maintenance status, researched the evolvement mechanism of equipment maintenance status and data management for equipment maintenance status, and then combined with the maintenance practice of the carbonated blowing equipment in Hangzhou Wahaha Incorporation to apply the research achievements that the dissertation obtains. The main content of dissertation is as follows:In chapter 1, the research background of dissertation was introduced; the defination of equipment maintenance status was put forward as well as its complexity and essentiality. The current development situation of related realm including the Product Lifecycle Management, product Configuration Management, MRO technologies, BOM for maintenance, equipment maintenance strategy and maintenance periods, reproducing and long-distance maintainance are reviewed and analyzed. The existent shortages of maintenance status management for long lifecycle manufacturing equipment are presented, and the dissertation's main content and framework are given.In chapter 2, the technology system of maintenance status manangement for long lifecycle manufacturing equipment was put forward. Firstly the reseach field and reseach object of this dissertation was limited. Secondly the target of the technology system of maintenance status manangement for long lifecycle manufacturing equipment was analysed. Thirdly three key technologies of the technology system of maintenance status manangement for long lifecycle manufacturing equipment were put forward. Fourthly three foundation technologies of the technology system of maintenance status manangement for long lifecyle manufacturing equipment were given. Finally the technology system of maintenance status manangement for long lifecycle manufacturing equipment including target layer, method layer and technology layer was given.In chapter 3, the description model of maintenance status for long lifecycle manufacturing equipment was put forward. Firstly the equipment maintenance status was disassembled to two parts of static composition and dynamic composition. Secondly the static composition including maintenance status items and control elements of equipment maintenance status was discussed. Thirdly the dynamic composition including maintenance manner of maintenance status items, maintenance event of maintenance status items and maintenance document of maintenance status items was discussed. Finally the description model of maintenance status was defined based on six tuple.In chapter 4, the modeling of the evolvement process of maintenance status for long lifecycle manufacturing equipment was put forward. Firstly the dynamic character of the equipment maintenance process was analysed, then the definantion of transfer model of equipment maintenance status was brought forward. Secondly the three kinds of maintenance event and three kinds of maintenance mode for maintenance status items were put forward. Thirdly the tranfer model of equipment maintenance status was build based on finite automaton in each maintenance mode, the tranfer model of equipment maintenance status was embodied to evolvement table of maintenance status of maintenance status item. At last, the integrity equipment maintenance status including evolvement history of equipment maintenance status was defined perfectly based on seven tuple.In chapter 5, the data management of maintenance status for long lifecycle manufacturing equipment was analyzed. Firstly the definition of the data model for equipment maintenance was put forward as well as four modeling principle. Secondly a series of management attributes for equipment maintenance status in the part master record for maintenance were discussed; the relation among part master record for maintenance was managed based on BOM for maintenance status; Thirdly some management attributes for equipment maintenance status in document master record were discussed, the part master record for maintenance, document master record and maintenance document were composed to object chain in data model for equipment maintenance. Fourthly the integration between data model for equipment maintenance and equipment maintenance process was analysed. At last the specification and data exchange between data model for equipment maintenance and management system for equipment maintenance were discussed.In chapter 6, the research achievements are put into practice combined with the maintenance practice of the carbonated blowing equipment in HangZhou Wahaha Incorporation. Firstly the characteristic of SIDEL SBO14 carbonated blowing equipment was analyzed, then the manner of maintenance management for SIDEL SBO14 carbonated blowing equipment was analyzed. Secondly the management attributes of equipment maintenance status on management module of equipment maintenance status in equipment maintenance management system for HangZhou Wahaha Incorporation were discussed. Finally equipment maintenance status management was verified through the maintemance status management for the stretching blowing mould and dry sterilization set for bottle flan.In chapter 7, the achievements and innovations of this dissertation are summarized, and the prospect for future work is given.