Title of article
LeadextrusiondampersforreducingseismicresponseofcoolantchannelassemblyOriginalResearchArticle
Author/Authors
Y.MParulekar، نويسنده , , G.RReddy، نويسنده , , K. K.VAZE، نويسنده , , H. S.KUSHWAHA، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
9
From page
175
To page
183
Abstract
InIndiantypepressurizedheavywaterreactors(PHWRs),twofuellingmachines(F/Ms)arelocatedoneithersideofthereactor.Thebehaviorofthecoolantchannelandtierodwhenfuellingmachinesareengagedonboththeendsofthechannelforrefuelingunderearthquakeisstudied.Itisobservedthattheloadsactingonthecoolanttubewerehigh.Inordertoreducetheearthquakeloadactingoncoolantchannelthefuellingmachinesarerestrainedbyenergyabsorberscalledleadextrusiondampers(LED).ThedesignofanLEDisperformedbasedontheextrusionprinciple.Theaimofthepaperistostudytheeffectivenessofsuchadeviceinreducingtheresponse.ItwasobservedthatthestressesinthecoolantchannelduetoearthquakearereducedsignificantlywhenLEDsareused.ResponsespectrumanalysisisalsocarriedoutforthesystemwithLED.InthisanalysistheLEDisreplacedwithanequivalentviscousdamperandstiffnessobtainedusingCaughy’slinearisationtechniques.Responsespectrumanalysisresultsandthenonlineartimehistoryanalysisresultsshowgoodagreement.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2004
Journal title
Nuclear Engineering and Design Eslah
Record number
894650
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