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| Seismic Analysis of Assembled Model of Control Rod Drive Mechanism and Reactor Head Package |
| Received:November 22, 2018 Revised:February 25, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2019.02.013 |
| KeyWord:control rod drive mechanism reactor head package seismic analysis |
| Author | Institution |
| LU Zhi-cheng |
1. State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, Shenzhen , China; 2. China Nuclear Power Design Co., Ltd, Shenzhen , China |
| SHANG Er-tao |
3. Shanghai Branch, China Nuclear Power Design Co., Ltd, Shanghai , China |
| WU Shi-jian |
1. State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, Shenzhen , China; 2. China Nuclear Power Design Co., Ltd, Shenzhen , China |
| NIE Zhao-yu |
1. State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, Shenzhen , China; 2. China Nuclear Power Design Co., Ltd, Shenzhen , China |
| CHEN Yong-chao |
1. State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, Shenzhen , China; 2. China Nuclear Power Design Co., Ltd, Shenzhen , China |
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| Abstract: |
| Objective To obtain the dynamic response of control rod drive mechanism (CRDM) and reactor head package (RHP) under earthquake conditions. Methods The assembled finite element model for CRDM and RHP was established. Three-dimensional nonlinear seismic analysis was performed with software ANSYS. Beam, link, and spring elements in software ANSYS were used for modeling components of CRDM and RHP, and the collision effects among seismic support plates and between seismic ring and seismic support plates were considered. Furthermore, the beam model of cable frame and cable-bridge was also assembled in the model instead of simplifying to quality point, which can reduce the error of seismic analysis caused by untruthful mass distribution. Results The seismic analysis and calculation of assembled model were conducted by the direct in-tegral calculus method with software ANSYS, and the section loads of CRDM and RHP which was required in stress analysis were extracted. Conclusion The seismic plate collision between the load of each section is simulated accurately and the load of each section is obtained. It can provide input for stress analysis of equipment. |
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