Fluid effect on the modal characteristics of a square tank

Tanks are used extensively in many engineering areas for spent fuel pool structures at nuclear power plants or for water storage tanks in bulk carriers. To ensure the structural integrity of such tanks when under dynamic loads, modal characteristics such as natural frequencies, participation factors...

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Main Authors: Myung Jo Jhung, Sung-Sik Kang
Format: Article
Language:English
Published: Elsevier 2019-07-01
Series:Nuclear Engineering and Technology
Online Access:http://www.sciencedirect.com/science/article/pii/S1738573318309082
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spelling doaj-a2341fee3269471da0f0f1d6d158bdad2020-11-25T01:57:01ZengElsevierNuclear Engineering and Technology1738-57332019-07-0151411171131Fluid effect on the modal characteristics of a square tankMyung Jo Jhung0Sung-Sik Kang1Corresponding author.; Department of Nuclear Safety Research, Korea Institute of Nuclear Safety, 62 Gwahak-ro, Yuseong-gu, Daejeon, 34142, Republic of KoreaDepartment of Nuclear Safety Research, Korea Institute of Nuclear Safety, 62 Gwahak-ro, Yuseong-gu, Daejeon, 34142, Republic of KoreaTanks are used extensively in many engineering areas for spent fuel pool structures at nuclear power plants or for water storage tanks in bulk carriers. To ensure the structural integrity of such tanks when under dynamic loads, modal characteristics such as natural frequencies, participation factors and mode shapes should be known. Investigated in this study are the modal characteristics of a square tank by the finite element method. This approach can be used with subsequent dynamic analyses such as a response spectrum analysis or a harmonic analysis. Finite element models are prepared to determine the natural frequencies and mode shapes, which are easy to find the modal characteristics of a fluid-filled square tank. The effects of the fluid contained in the tank and the boundary conditions at top and bottom ends on the modal characteristics are assessed by several finite element analyses. Keywords: Square tank, Modal analysis, Natural frequency, Mode shape, Finite element analysishttp://www.sciencedirect.com/science/article/pii/S1738573318309082
collection DOAJ
language English
format Article
sources DOAJ
author Myung Jo Jhung
Sung-Sik Kang
spellingShingle Myung Jo Jhung
Sung-Sik Kang
Fluid effect on the modal characteristics of a square tank
Nuclear Engineering and Technology
author_facet Myung Jo Jhung
Sung-Sik Kang
author_sort Myung Jo Jhung
title Fluid effect on the modal characteristics of a square tank
title_short Fluid effect on the modal characteristics of a square tank
title_full Fluid effect on the modal characteristics of a square tank
title_fullStr Fluid effect on the modal characteristics of a square tank
title_full_unstemmed Fluid effect on the modal characteristics of a square tank
title_sort fluid effect on the modal characteristics of a square tank
publisher Elsevier
series Nuclear Engineering and Technology
issn 1738-5733
publishDate 2019-07-01
description Tanks are used extensively in many engineering areas for spent fuel pool structures at nuclear power plants or for water storage tanks in bulk carriers. To ensure the structural integrity of such tanks when under dynamic loads, modal characteristics such as natural frequencies, participation factors and mode shapes should be known. Investigated in this study are the modal characteristics of a square tank by the finite element method. This approach can be used with subsequent dynamic analyses such as a response spectrum analysis or a harmonic analysis. Finite element models are prepared to determine the natural frequencies and mode shapes, which are easy to find the modal characteristics of a fluid-filled square tank. The effects of the fluid contained in the tank and the boundary conditions at top and bottom ends on the modal characteristics are assessed by several finite element analyses. Keywords: Square tank, Modal analysis, Natural frequency, Mode shape, Finite element analysis
url http://www.sciencedirect.com/science/article/pii/S1738573318309082
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