Author:
Liu Mingxuan,Fan Xinyang,Song Danrong,Zheng Bin,Zhang Meng
Abstract
AbstractFloating nuclear power plant (FNPP) is a movable nuclear power plant built on the floating platform, which can provide clean and stable power for remote coastal areas, and are currently a hot research topic in the field of nuclear power. The steel containment is located in the reactor compartment of the FNPP and it is an important safety guarantee structure. Fatigue and fracture have been an important issue for ship and offshore structures for a long time. Fatigue failure of containment will have serious consequences.In order to research the fatigue life analysis method of steel containment of the first FNPP in China, the paper adopts miner linear cumulative damage theory and spectral analysis method, based on the American Society of Mechanical Engineers (ASME) standards and relevant standards of China Classification Society (CCS), and uses AQWA to analyze Wave load of FNPP. The hydrodynamic calculation results are imported into finite element model to analyze the structural response of each point of containment, and calibrate the transfer function data of each key point by using the linear system theory and regular wave periodic evaluation method. The fatigue analysis of each point is carried out according to the transfer function and the wave dispersion diagram drawn by the forty years monitoring sea conditions of the working sea area of the FNPP. The result shows that the fatigue life of steel containment is superior and meets the service requirements.
Publisher
Springer Nature Singapore
Reference13 articles.
1. Thangam Babu P.V., Reddy, D.V.: Existing methodologies in the design and analysis of offshore floating nuclear power plants. Nucl. Eng. Des. 48(1), 167–205 (1978)
2. Arctic’s first offshore floating nuclear power plant on the verge of completion. Ship Eng. 39(04), 9 (2017)
3. Guo, X., Kong, F., Zhu, C., Zhu, G.: Study on safety guidelines in the design of floating nuclear power plants. Nucl. Power Eng. (2021)
4. Liu, Y., Ren, H., Feng, G., et al.: Simplified calculation method for spectral fatigue analysis of hull structure. Ocean Eng. 243, 110204 (2022)
5. Lin, I.: Study on fatigue strength of large container ships based on design wave method. Ship Eng. 37(S2), 31–34 (2015)