[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5516/NET.09.2011.016

A STUDY ON MODAL CHARACTERISTICS OF FLOW SKIRT USING EFFECTIVE YOUNG'S MODULUS

Jhung, Myung-Jo (Korea Institute of Nuclear Safety)
Kim, Yong-Beum (Korea Institute of Nuclear Safety)

Publication Information

Nuclear Engineering and Technology / v.44, no.5, 2012 , pp. 501-506 More about this Journal

Abstract

Many innovative design features are employed in the reactor vessel internals of SMART, a small integral-type pressurized water reactor, one of which is the flow skirt, which uniformly distributes flow and horizontally restrains the lower part of the core support barrel. This new design requires a comprehensive investigation of vibration characteristics. Therefore, in this study, modal characteristics of flow skirts are investigated with finite element analysis. Specifically, we investigate how the presence of holes, the presence of three rings attached to the flow skirt, and the thickness of the lowest shell effect vibration characteristics. In addition, the fluid effect is addressed, since the flow skirt is submerged in the fluid.

Keywords

Small and Medium Sized Reactor; Flow Skirt; Effective Young's Modulus; Natural Frequency; Mode Shape;

Citations & Related Records

Times Cited By KSCI : 2 (Citation Analysis)
Times Cited By Web Of Science : 0 (Related Records In Web of Science)

Reference
Cited By KSCI

1	IAEA, Innovative Small and Medium Sized Reactors: Design Features, Safety Approaches, and R&D Trends, IAEA-TECDOC-1451, International Atomic Energy Agency, Vienna (2005).
2	Kim, K.M., Lee, B.I., Cho, H.H., Park, J.S., Chung, Y-J., "Numerical study on thermo-hydrodynamics in the reactor internals of SMART," Nuclear Engineering and Design, Vol.241, Issue 7, pp.2536-2543 (2011). DOI
3	ANSYS, Inc., Theory Reference for ANSYS and ANSYS Workbench Release 12.0, Canonsburg, PA (2009).
4	Grimes, R.G., Lewis, J.G., Simon, H.D., "A Shifted Block Lanczos Algorithm for Solving Sparse Symmetric Generalized Eigenproblems," SIAM Journal on Matrix Analysis and Applications, Vol.15, No.1, pp.228-272 (1994). DOI ScienceOn
5	Jhung, M.J., Yu, S.O., "Study on modal characteristics of perforated shell using effective Young's modulus," Nuclear Engineering and Design, Vol.241, pp.2026-2033 (2011). DOI
6	Jhung, M.J., Choi, Y.H., Ryu, Y.H., "Free vibration analysis of circular plate with eccentric hole submerged in fluid," Nuclear Engineering and Technology, Vol.41, No.3, pp.355-364 (2009). DOI
7	Jhung, M.J., Kim, W.T., Ryu, Y.H., "Dynamic characteristics of cylindrical shells considering fluid-structure interaction," Nuclear Engineering and Technology, Vol.41, No.10, pp.1333-1345 (2009). DOI