Generator loads study of a hydro-electric power house structure

The shape of a hydro-electric (hydel) power station particularly the concrete around spiral case and generator foundation is so complex that the determination of actual stresses is very complicated and time-consuming process since it is essentially a three-dimensional problem. The stress variations...

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Main Author: Bakhteri, Jahangir
Format: Article
Language:English
Published: Penerbit UTM Press 2003
Subjects:
Online Access:http://eprints.utm.my/1619/1/JTKK39B3.pdf
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author Bakhteri, Jahangir
author_facet Bakhteri, Jahangir
author_sort Bakhteri, Jahangir
collection ePrints
description The shape of a hydro-electric (hydel) power station particularly the concrete around spiral case and generator foundation is so complex that the determination of actual stresses is very complicated and time-consuming process since it is essentially a three-dimensional problem. The stress variations in the structure have been studied using three-dimensional photoelastic method in few small scale models only. In the present study, finite element and boundary element analyses of spiral (scroll) case and generator foundation of a large hydel power station considering generator loads have been carried out. A simple and efficient method of slices for the geometric representation of the structure has been developed. Linear elastic analyses have been carried out using well established existing finite element and boundary element computer programs and two pre-processing computer programs have also been developed to support the 3-D finite element program. Almost all of the present analyses show the same pattern of stresses and only their values differ, while most of the existing photoelastic study results indicate stresses with different pattern. In conclusion, a suitable, efficient and appropriate numerical method for the approximate analysis of the structure has been proposed.
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spelling utm.eprints-16192017-11-01T04:17:38Z http://eprints.utm.my/1619/ Generator loads study of a hydro-electric power house structure Bakhteri, Jahangir TA Engineering (General). Civil engineering (General) The shape of a hydro-electric (hydel) power station particularly the concrete around spiral case and generator foundation is so complex that the determination of actual stresses is very complicated and time-consuming process since it is essentially a three-dimensional problem. The stress variations in the structure have been studied using three-dimensional photoelastic method in few small scale models only. In the present study, finite element and boundary element analyses of spiral (scroll) case and generator foundation of a large hydel power station considering generator loads have been carried out. A simple and efficient method of slices for the geometric representation of the structure has been developed. Linear elastic analyses have been carried out using well established existing finite element and boundary element computer programs and two pre-processing computer programs have also been developed to support the 3-D finite element program. Almost all of the present analyses show the same pattern of stresses and only their values differ, while most of the existing photoelastic study results indicate stresses with different pattern. In conclusion, a suitable, efficient and appropriate numerical method for the approximate analysis of the structure has been proposed. Penerbit UTM Press 2003-12 Article PeerReviewed application/pdf en http://eprints.utm.my/1619/1/JTKK39B3.pdf Bakhteri, Jahangir (2003) Generator loads study of a hydro-electric power house structure. Jurnal Teknologi B (39B). pp. 29-46. ISSN 0127-9696 http://www.penerbit.utm.my/onlinejournal/39/B/JTKK39B3.pdf
spellingShingle TA Engineering (General). Civil engineering (General)
Bakhteri, Jahangir
Generator loads study of a hydro-electric power house structure
title Generator loads study of a hydro-electric power house structure
title_full Generator loads study of a hydro-electric power house structure
title_fullStr Generator loads study of a hydro-electric power house structure
title_full_unstemmed Generator loads study of a hydro-electric power house structure
title_short Generator loads study of a hydro-electric power house structure
title_sort generator loads study of a hydro electric power house structure
topic TA Engineering (General). Civil engineering (General)
url http://eprints.utm.my/1619/1/JTKK39B3.pdf
work_keys_str_mv AT bakhterijahangir generatorloadsstudyofahydroelectricpowerhousestructure