Coordination And Optimization Of Large Equipment Complete Service Under Cloud Manufacturing Mode

In the21st century, the collaboration of cloud applications and the Internet of things (IOT) has been identified as the key technology and development trend for remodelling global manufacturing enterprises. Cloud manufacturing is a cloud computing application in the manufacturing industry, regarded as new technology of promoting manufacturing industry competitiveness and innovation ability. It is the main trend of the large equipment manufacturing industry transformation and development in China. Operation management of large equipment complete services (LECS) in cloud manufacturing has complexity, distributivity, target, network, dynamic, and uncertainty, compared with the traditional manufacturing model. Among them, the distributivity and network form are the most typical features of the cloud manufacturing different from the traditional model. The distributivity makes resources be independence and autonomy, and prone to conflicts of interest. So some specifications, procedures and methods are required for behavior constraints and incentives. Network form is the basis of resource integration, sharing and collaboration, and it is the guarantee of manufacturing and service integration, and it is also embodiment of management modernization. Therefore, the collaborative and optimization of operation management under cloud manufacturing mode needs to combine traditional theory with modern technology, so as to implement management innovation. The collaborative management with centralized, high efficient and real-time will be realized by cloud manufacturing service platform. The coordination mechanism need to be formulated to coordinate various relations, balance autonomy, and eliminate conflict. Synergy is basic, and optimization is essential. With emphasis on the operation synergy, we must attach importance to the operation optimization. Resources allocation and planning control of the process of service must be optimization decisions, focused on synergies of multi-level multi-project multi-objective collaborative optimization. Therefore, the study of management innovation is of great significance and challenge, which is coordination and optimization of LECS under cloud manufacturing mode.Different from traditional and local research perspectives, the new problems of LECS operation coordination and optimization under cloud manufacturing mode were made a systematic and complete research. Integrating empirical study, model, algorithm and simulation, the theory and method system of operation coordination and optimization of LECS had been researched based on cloud manufacturing, collaborative management, game theory and lean production, which supports and implements the cloud manufacturing mode. The study includes four levels of system, control, organization and execution, paying attention to the coordination effect. Specific contents of research are as follows:1. Analysis of LECS coordination and optimization under cloud manufacturing mode:in order to provide macro guidance for further research, the concept of the LECS was defined, the necessity and feasibility of the LECS was discussed, and model of cloud manufacturing application of LECS was explored. Then features of the operation management and collaborative optimization requirements of LECS were analyzed, and the key problems of operation coordination and optimization need to be solved, were proposed.2. Synergy logic framework of LECS under cloud manufacturing mode:in system level, adopting TAEMS to decompose the task, cooperative relations, coordination mechanism, coordination problem and cooperative target were analyzed. The collaborative management idea was put forward with the order parameter of the five dimensions. The LECS collaboration logic was set up based on cloud manufacturing platform framework, and the logical relationship was analyzed together.3. Composite synergy mechanism of LECS based on the multidimensional order parameter:in control level, in order to achieve the corresponding goal together, the comprehensive coordination mechanisms were designed, based on the five dimensions of the order parameter in the collaborative management. The composite synergy mechanism system was established.4. Federal resources allocation collaborative optimization methods of LECS based on cooperative game:in organization level, the individual and overall rationality was analyzed, and the operation cost was proposed as the core of cooperative game. The cooperation game model of coordination was established combining individual interests with collective interests. The augmented Lagrangian relaxation method was adopted to explore the cooperative game equilibrium solutions. The effectiveness of the model and algorithm was verified through an example.5. Operation plan and control collaborative optimization method of LECS based on lean thinking:in execution level, blending lean thinking in operation planning and control process, the concrete structure and influencing factors of operation plan and control were analyzed, and the relationship among the three goals of quality-duration-cost was also analyzed. The coordination model of quality-duration-cost was established introducing Taguchi quality loss function based on the cost. The multi-level multi-projects multi-objective coordination optimization model of the plan and control was built. Connecting with the actual demand, the optimizing the model, simulation+the genetic algorithm was designed, and effectiveness is verified by case study.The innovations are as follows:1. Designed composite synergy mechanism system for the LECS to comprehensive coordination.Based on the order parameters of collaborative management which were five dimensions of organization collaboration, coordination, information coordination process, resource coordination, the compound synergy mechanism system was designed to achieve all-round coordination. It helps to eliminate conflict in the operation, reduce the internal friction, give full play to their effectiveness, and improve the overall synergy effect.2. Created a cooperation game model for the LECS federal resources to coordinate individual and collective interests.The cooperation game model which can realize individual and collective interests maximize was established with superior and resource contribution rate. It can both realize individual superior and overall core, and ensure the stability of cooperation. It provided a theoretical method for LECS under cloud manufacturing to achieve resource synergy goals.3. Set up a multi-level, multiple projects, multi-objects coordinated optimization model of the plan and control for LECS.Introducing Taguchi quality loss function, a collaborative model of three targets was proposed based on the relationship among quality, duration and cost. The multi-level, multiple project and multi-objective coordination optimization model of planning control was established. The model was processed and optimized to enhance operability and practicability. This laid a foundation for the LECS under the cloud manufacturing mode to realize collaborative optimization overall.In this paper, a set of theory method system of coordination and optimization was systematically established to support and implement LECS’cloud manufacturing mode. The research results show that the collaborative logic framework proposed is macro guidance significance; the composite synergy mechanism system designed realizes all-round cooperative target; the collaborative optimization model and algorithm established have validity and practicability through the instance verified. It systematically realized the collaborative management of resources choice and optimizing configuration, the plan and control in the process of service, and so on. It can ensure stability of manufacturing resource service seamless, green, environmental protection, and high quality. It achieves optimization effect of the system overall coordination. The efficiency and effectiveness of LECS project will be raised. The study also provides a theoretical basis and scientific method for large equipment enterprise from manufacturer to a service integrator transformation.