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
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
Journal title :
Nuclear Engineering and Design Eslah
