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http://dx.doi.org/10.1016/j.net.2020.12.016

Impact test of a centrifugal pump used in nuclear power plant under aircraft crash scenario  

Huang, Tao (State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, China Nuclear Power Engineering Co., Ltd)
Chen, Mengmeng (Department of Disaster Mitigation for Structures, Tongji University)
Li, Zhongcheng (China Nuclear Power Engineering Co., Ltd)
Dong, Zhanfa (State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, China Nuclear Power Engineering Co., Ltd)
Zhang, Tiejian (China Nuclear Power Engineering Co., Ltd)
Zhou, Zhiguang (Department of Disaster Mitigation for Structures, Tongji University)
Publication Information
Nuclear Engineering and Technology / v.53, no.6, 2021 , pp. 1858-1868 More about this Journal
Abstract
Resisting an accidental impact of large commercial aircrafts is an important aspect of advanced nuclear power plant (NPP) design. Especially after the 9·11 event, some regulations were enacted, which required the design of NPPs should consider the accidental impact of large commercial aircrafts. Normal working of equipment is important for stopping reactor under an impact when an NPP is in operation. However, there is a lack of reliable analysis and research on the impact test of nuclear prototype equipment. Therefore, in order to study the response of the equipment under high acceleration impact, a centrifugal pump is selected as the research object to perform the impact test. A horizontal half-sinusoidal pulse wave was applied to the working pump. The test results show that the horizontal response of the motor and flange is greater compared to other parts, as well as the vertical response of the coupling. The stress response of the pump body support and motor support is high, hence these parts should be considered in the design of the pump. Finally, combined with the damage and stress evaluation results of the pump under different amplitudes, the ultimate impact acceleration that the pump can withstand is given.
Keywords
Nuclear equipment; Aircraft crash; Centrifugal pump; Impact test;
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