Graphite plays an important role in the pebble-bed high temperature gas-cooled reactors (HTR) as moderator, reflector as well as internal structural material. The HTR core consists of a large number of graphite bricks interconnected with keys. It is required that the structural integrity of the HTR core be maintained when subjected to the seismic load. Hence it is important from the viewpoint of seismic design to investigate the seismic responses of the graphite bricks. Considering the pebble-bed HTR has various graphite shapes, a generalized three-dimensional model with the associated computer code is developed to treat these interconnected graphite bricks with arbitrary shapes. In this model, each brick is treated as a rigid body with six degrees-of-freedom: three translational displacements and three rotations around the brick center of gravity. A nonlinear spring dashpot model is applied to present the collision between adjacent bricks and the interaction forces through the key systems. In the numerical tests, the code is verified by comparing predicted responses with exact solutions for two cases and good agreement is observed. The model is then used for the dynamic analysis of the side reflectors of the pebble-bed HTR core under a given seismic load. The calculated response behaviour of the side reflector column is summarized and discussed.
Skip Nav Destination
2013 21st International Conference on Nuclear Engineering
July 29–August 2, 2013
Chengdu, China
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-5579-9
PROCEEDINGS PAPER
A Three-Dimensional Rigid-Body Model for Seismic Analysis of the Pebble-Bed HTR Graphite Core Structure Available to Purchase
Chuan Zeng,
Chuan Zeng
Tsinghua University, Beijing, China
Search for other works by this author on:
Haitao Wang
Haitao Wang
Tsinghua University, Beijing, China
Search for other works by this author on:
Chuan Zeng
Tsinghua University, Beijing, China
Haitao Wang
Tsinghua University, Beijing, China
Paper No:
ICONE21-15896, V002T03A035; 9 pages
Published Online:
February 7, 2014
Citation
Zeng, C, & Wang, H. "A Three-Dimensional Rigid-Body Model for Seismic Analysis of the Pebble-Bed HTR Graphite Core Structure." Proceedings of the 2013 21st International Conference on Nuclear Engineering. Volume 2: Plant Systems, Construction, Structures and Components; Next Generation Reactors and Advanced Reactors. Chengdu, China. July 29–August 2, 2013. V002T03A035. ASME. https://doi.org/10.1115/ICONE21-15896
Download citation file:
11
Views
Related Proceedings Papers
Related Articles
Dynamic Seismic Analysis of Long Segmented Lifelines
J. Pressure Vessel Technol (February,1979)
An Approximate Method for the Dynamic Analysis of Elastic Linkages
J. Eng. Ind (May,1977)
Quasi-Static and Dynamic Analysis of Narrow-Faced Helical Gears With Profile and Lead Modifications
J. Mech. Des (December,1997)
Related Chapters
Iowa State University Research Reactor
Decommissioning Handbook
Numerical Simulation and Analysis about Harmonic Performance Used for Heat Transfer and Air-Conditioning Cooling Load of Energy-Saving Porous Brick and Hollow Brick Wall
Inaugural US-EU-China Thermophysics Conference-Renewable Energy 2009 (UECTC 2009 Proceedings)
ASME Piping Codes: B31.3 Process, B31.5 Refrigeration, B31.9 Building Services and ASME Standards for Piping: B31E Seismic Design, B31J Stress I-Factors, B31T Toughness Requirements
Companion Guide to the ASME Boiler and Pressure Vessel Codes, Volume 2, Fifth Edition