Research On The System Theory And Support Technology Of Plant Predictive Maintenance

Plant maintenance is not only a critical factor in the success of manufacturing enterprises, but also of great significance in the sustainable development of the society. Upgrading the level of plant maintenance will not only help enterprises achieve their business objectives, but will promote the harmonious development of production, environment and the society.Because of the importance of plant maintenance, under the sponsor of Hunan provincial key scientific and technological project and the China Sinopec key scientific and technological project, and aiming at the challenges of maintenance strategies, maintenance management mechanisms, maintenance supporting tools and the allocation of maintenance resources under the condition of the advanced manufacturing environment and the new criterion of value judgment of plant maintenance (emphasizing safety, environment protection and human values), the present dissertation proposes an extended predictive maintenance pattern as a solution, and makes an in-depth investigation of the system theory , key supporting technology and business implementation strategy of predictive maintenance pattern. The main contributions of this dissertation are summarized as follows:(1) The system theory of predictive maintenance pattern has been established. The basic concept of predictive maintenance pattern based on the paradigm concept of science and technology is given and the essential connotation of predictive maintenance pattern is summarized. The compositional elements of predictive maintenance pattern have been identified. The structure and framework of the compositional elements of predictive maintenance pattern and their mutual relations are analyzed. The evolution mechanisms of predictive maintenance pattern are investigated and the implementation strategies of predictive maintenance pattern are explored. The establishment of system theory will provide a theoretical support and guidance to the extension and implementation of predictive maintenance pattern.(2)Aiming at the "predictive" issue of the maintenance condition, the author investigates the predictive technology of units condition, introduces the idea of updating into the grey predictive method, develops a metabolic filling grey predictive method based on the on-line monitoring of units , and integrates it to a group monitoring system of big units. Aiming at the deficiencies of general multi-step predictive method based on support vector machine, the author considers to constantly...