This paper studies the development method of integration between design and analysis. Development is based on the current design platform of nuclear power plant of SNERDI - PDS. Because of complexity and iterations, the calculation and analysis work often takes a lot of manpower and drags down the entire design progress. To improve efficient and accuracy, the integration between design and analysis became the trend of technology development. Some design systems, such as Ansys Workbanch, ProE, Catia and so on, can be integrated modeling and analysis in a unified platform. However, these systems can be only applied to product design, but not in nuclear power design. At present, CAP series NPP mainly uses PDS as the layout design platform of all disciplines. This paper describes the bidirectional data sharing between design and analysis, effectively expand the scope of data utilization, and enhance the efficiency of the analysis.

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