Title of article
DynamiccharacteristicsofsteamgeneratorU-tubeswithdefectOriginalResearchArticle
Author/Authors
JongChullJo، نويسنده , , MyungJoJhung، نويسنده , , WoongSikKim، نويسنده , , HhoJungKim، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2005
Pages
11
From page
821
To page
831
Abstract
Thisstudyinvestigatesthefluidelasticinstabilitycharacteristicsofsteamgenerator(SG)U-tubeswithdefectandthesafetyassessmentofthepotentialforfretting-weardamagescausedbyforeignobjectinoperatingnuclearpowerplants.Togetthenaturalfrequency,correspondingmodeshapeandparticipationfactor,modalanalysesareperformedfortheU-tubeseitherwithaxialorcircumferentialflawwithdifferentsizes.Specialemphasesareontheeffectsofflaworientationandsizeonthemodalandinstabilitycharacteristicsoftubes,whichareexpressedintermsofthenaturalfrequency,correspondingmodeshapeandstabilityratio.Also,thewearrateofU-tubecausedbyforeignobjectiscalculatedusingtheArchardformulaandtheremaininglifeofthetubeispredicted,anddiscussedinthisstudyistheeffectoftheflowvelocityandvibrationofthetubeontheremaininglifeofthetube.Inaddition,addressedinthisstudyistheeffectoftheinternalpressureonthevibrationandfretting-wearcharacteristicsofthetube.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2005
Journal title
Nuclear Engineering and Design Eslah
Record number
894890
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