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http://dx.doi.org/10.3795/KSME-A.2012.36.9.1009

Theoretical Seismic Analysis of Butterfly Valve for Nuclear Power Plant  

Han, Sang-Uk (Dept. of Mechanical Engineering, Dong-A Univ.)
Ahn, Jun-Tae (Dept. of Mechanical Engineering, Dong-A Univ.)
Lee, Kyung-Chul (DukWon Valve Co., LTD.)
Han, Seung-Ho (Dept. of Mechanical Engineering, Dong-A Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.36, no.9, 2012 , pp. 1009-1015 More about this Journal
Abstract
Valves are one of the most important components of a pipeline system in a nuclear power plant, and it is important to ensure their structural safety under seismic loads. A crucial aspect of structural safety verification is the seismic qualification, and therefore, an optimal shape design and experimental seismic qualification is necessary in case the configuration of the valve parts needs to be modified and their performance needs to be improved. Recently, intensive numerical analyses have been performed before the experimental verification in order to determine the appropriate design variables that satisfy the performance requirements under seismic loads. In this study, static and dynamic numerical structural analyses of a 200A butterfly valve for a nuclear power plant were performed according to the KEPIC MFA. The result of static analysis considering an equivalent static load under SSE condition gave an applied stress of 135 MPa. In addition, the result of dynamic analysis gave an applied stress of 183 MPa, where the CQC method using response spectrums was taken into account. These values are under the allowable strength of the materials used for manufacturing the butterfly valve, and therefore, its structural safety satisfies the requirements of KEPIC MFA.
Keywords
Butterfly Valve; Nuclear Power Plant; Seismic Analysis; Static Seismic Analysis; Dynamic Seismic Analysis;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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1 Lee, W. H., Cho, J. R., Roh, M. D. and Ryu, J. H.,2011, "Seismic Analysis of Nuclear Power Equipment Related to Design," Trans. of the KSME(A), Vol. 35, No.3, pp. 317-323.   과학기술학회마을   DOI   ScienceOn
2 Kim, S. J., Lee, Y. S., Ryu, C. H., Yang, K. H. and Jung, S. H., 2001, "Seismic Analysis of Rack Structure with Fluid-Structure Interaction," Proceedings of 2001 Fall Annual Meeting of the KSME, Vol. A, pp 465-470.   과학기술학회마을
3 Kim, C. S. and Lee, S. H., 2010, "The Economic Effects of Nuclear Power Generation Using CGE Model," Korean Energy Economic Review, Vol. 9, No. 2, pp. 129-152
4 Lee, J. K., Kim, J. Y. and Rhee, H. N., 2002, "Seismic Qualification of the Air Cleaning Units for Nuclear Power Plant Ulchin 5&6,"Proceeding of 2002 Spring annual Meeting of the KSME, Vol. 26, No. 1, pp. 1376-1383.   과학기술학회마을
5 Hwang, K. M. and Jang, J. B., 2005, "Seismic Qualification of a Control Valve for Nuclear Power Plant," Conference of KSCE, pp. 1819-1822.
6 KEPIC MFA, 2005, Korea Electric Power Industry Code.
7 Kim, H. T. and Lee, Y. S., 2011, "Seismic and Structure Analysis of a Temporary Rack Construction in a Nuclear Power Plant," Trans. of the KSME(A), Vol. 35, No. 10, pp. 1265-1271.   과학기술학회마을
8 ANSYS Workbench, Release 12.0, 2009, www.ansys.com.
9 KEPIC END, 2005, Korea Electric Power Industry Code.
10 Chung, C. S., 2000, "Seismic Evaluation for Strainer in the Primary Cooling System," Journal of the Computational Structural Engineering Institute of Korea, Vol. 13, No. 3, pp. 295-304.   과학기술학회마을
11 Lee, J. K., Kim, J. Y. and Chung, P. J., 2001, "Seismic Qualification of the Air Cleaning Units for Nuclear Power Plant Ulchin 5&6," Trans. of the KSME(A), Vol. 26, No.7, pp. 1376-1383   과학기술학회마을   DOI   ScienceOn