欢迎来到天天文库
浏览记录
ID:40985032
大小:387.40 KB
页数:11页
时间:2019-08-12
《wheel rail contact elements incorporating irregularities》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、AdvancesinEngineeringSoftware36(2005)827837www.elsevier.com/locate/advengsoftWheel-railcontactelementsincorporatingirregularitiesC.J.Bowe*,T.P.MullarkeyDepartmentofCivilEngineering,NationalUniversityofIreland,Galway,IrelandReceived25November2003;acce
2、pted17March2005Availableonline22August2005AbstractTheaimofthisstudyistosimulatethedynamicverticalresponseofavehicletraversingrigidrailsandarailwaybridge.Thisisachievedbyusingtheauthorswheel-railcontactelement(WRC)tomodelthedynamicinteractionthatexist
3、sbetweenasprungwheel,usingaHertzianspring,andtherail.Theobjectiveincreatingtheseelementswastomodeltherailandwheelirregularities,whichwasnotafeatureofthecontactelementswithintheANSYSfiniteelementprogram.Inthispaperthenumericalresultsgeneratedusingtheau
4、thorsWRCelementareidenticaltotheresultsgeneratedusingthecommercialcontactelementofANSYSforasmoothrailcondition.Inthecaseofirregularrails,thenumericalresultsgeneratedusingtheauthorsWRCelementscompareveryfavourablywiththeresultsfromtheliterature.q2005C
5、ivil-CompLtdandElsevierLtd.Allrightsreserved.Keywords:Wheel-railcontactelement;Hertzianspring;Rigidrails;Irregularities1.Introductionincludetheadditionalconvectiveaccelerationsduetothewheelasittravelsalongthebeam.Intheauthorsmodel,theInrecentyears,re
6、searchonthedynamicresponseofwheelisrepresentedbyasprungmass,thusaHertziantrainsandrailwaybridgeshasbecomeanimportanttopicinspringexistsbetweenthewheelandtherailandissimulatedcivilengineering.EngineersandresearchershaveabymeansoftheWRCelements.Inthisc
7、ase,thewheelandresponsibilityforensuringthesafepassageoftrainsbeamnolongerhavethesamedeflection;hencethetraversingrailsandrailwaybridgesbycarryingoutadditionalconvectiveaccelerationsduetothewheelareextensiveresearchonexistingstructures.Muchofthenotreq
8、uired.dynamicresponsethatthebridgeandvehicleexperienceTheauthorstechniqueinvolvesmodellingeachwheelascanbeattributedtothecontactthatexistsbetweenthewheelaHertzianspringperpendiculartothesurfaceoftherail.andtherail.Therefore,bymodellingthedifferentwhe
此文档下载收益归作者所有