Practical modeling of fluid in ABWR suppression pool for seismic analysis using 3D FEM model

This paper presents a practical modeling of the fluid in a suppression pool (SP) for seismic analysis by using three-dimensional finite element method (3D FEM) models of the reactor building of an advanced boiling water reactor (ABWR). We performed a seismic analysis considering the fluid-structure...

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Autores principales:	Shohei ONITSUKA, Yoshihiro GOTO, Tadashi IIJIMA, Naoki OJIMA
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2017
Materias:	seismic analysis 3d fem models fluid modeling suppression pool abwr pressure fluctuation Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/743eda7865c640f3bd0c805755af2c88
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spelling	oai:doaj.org-article:743eda7865c640f3bd0c805755af2c882021-11-26T07:03:57ZPractical modeling of fluid in ABWR suppression pool for seismic analysis using 3D FEM model2187-974510.1299/mej.17-00152https://doaj.org/article/743eda7865c640f3bd0c805755af2c882017-05-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/4/3/4_17-00152/_pdf/-char/enhttps://doaj.org/toc/2187-9745This paper presents a practical modeling of the fluid in a suppression pool (SP) for seismic analysis by using three-dimensional finite element method (3D FEM) models of the reactor building of an advanced boiling water reactor (ABWR). We performed a seismic analysis considering the fluid-structure interaction by using the virtual mass method in MSC Nastran, which was verified on the basis of vibration tests in this study, and the effects of the fluid on the structures around the SP were evaluated. For the analysis, we developed the following 3D FEM models: a full model, impulsive model, and no-fluid model. The full model considered both the convective and impulsive effects of the fluid, and the impulsive model lacked the convective effects of the full model (modeling the fluid as masses). The no-fluid model removed the impulsive effects from the impulsive model (removing the fluid from the full model). From the analysis, we obtained the maximum acceleration, von Mises stresses, and pressure fluctuations at the structures around the SP. The obtained results were compared with each other. They indicate that the fluid hardly affects the seismic responses of the structures, though some effects of the fluid were found. On the basis of the effects we found, we propose a practical modeling of the fluid and a modeling flowchart to use it. The modeling flowchart enables us to practically model the fluid in the SP for seismic analysis using ABWR 3D FEM models.Shohei ONITSUKAYoshihiro GOTOTadashi IIJIMANaoki OJIMAThe Japan Society of Mechanical Engineersarticleseismic analysis3d fem modelsfluid modelingsuppression poolabwrpressure fluctuationMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 4, Iss 3, Pp 17-00152-17-00152 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	seismic analysis 3d fem models fluid modeling suppression pool abwr pressure fluctuation Mechanical engineering and machinery TJ1-1570
spellingShingle	seismic analysis 3d fem models fluid modeling suppression pool abwr pressure fluctuation Mechanical engineering and machinery TJ1-1570 Shohei ONITSUKA Yoshihiro GOTO Tadashi IIJIMA Naoki OJIMA Practical modeling of fluid in ABWR suppression pool for seismic analysis using 3D FEM model
description	This paper presents a practical modeling of the fluid in a suppression pool (SP) for seismic analysis by using three-dimensional finite element method (3D FEM) models of the reactor building of an advanced boiling water reactor (ABWR). We performed a seismic analysis considering the fluid-structure interaction by using the virtual mass method in MSC Nastran, which was verified on the basis of vibration tests in this study, and the effects of the fluid on the structures around the SP were evaluated. For the analysis, we developed the following 3D FEM models: a full model, impulsive model, and no-fluid model. The full model considered both the convective and impulsive effects of the fluid, and the impulsive model lacked the convective effects of the full model (modeling the fluid as masses). The no-fluid model removed the impulsive effects from the impulsive model (removing the fluid from the full model). From the analysis, we obtained the maximum acceleration, von Mises stresses, and pressure fluctuations at the structures around the SP. The obtained results were compared with each other. They indicate that the fluid hardly affects the seismic responses of the structures, though some effects of the fluid were found. On the basis of the effects we found, we propose a practical modeling of the fluid and a modeling flowchart to use it. The modeling flowchart enables us to practically model the fluid in the SP for seismic analysis using ABWR 3D FEM models.
format	article
author	Shohei ONITSUKA Yoshihiro GOTO Tadashi IIJIMA Naoki OJIMA
author_facet	Shohei ONITSUKA Yoshihiro GOTO Tadashi IIJIMA Naoki OJIMA
author_sort	Shohei ONITSUKA
title	Practical modeling of fluid in ABWR suppression pool for seismic analysis using 3D FEM model
title_short	Practical modeling of fluid in ABWR suppression pool for seismic analysis using 3D FEM model
title_full	Practical modeling of fluid in ABWR suppression pool for seismic analysis using 3D FEM model
title_fullStr	Practical modeling of fluid in ABWR suppression pool for seismic analysis using 3D FEM model
title_full_unstemmed	Practical modeling of fluid in ABWR suppression pool for seismic analysis using 3D FEM model
title_sort	practical modeling of fluid in abwr suppression pool for seismic analysis using 3d fem model
publisher	The Japan Society of Mechanical Engineers
publishDate	2017
url	https://doaj.org/article/743eda7865c640f3bd0c805755af2c88
work_keys_str_mv	AT shoheionitsuka practicalmodelingoffluidinabwrsuppressionpoolforseismicanalysisusing3dfemmodel AT yoshihirogoto practicalmodelingoffluidinabwrsuppressionpoolforseismicanalysisusing3dfemmodel AT tadashiiijima practicalmodelingoffluidinabwrsuppressionpoolforseismicanalysisusing3dfemmodel AT naokiojima practicalmodelingoffluidinabwrsuppressionpoolforseismicanalysisusing3dfemmodel
_version_	1718409725585915904

Practical modeling of fluid in ABWR suppression pool for seismic analysis using 3D FEM model

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