鋼軌橫移及扭轉(zhuǎn)變形研究.pdf

1、西南交通大學(xué)碩士學(xué)位論文鋼軌橫移及扭轉(zhuǎn)變形研究姓名：張宏海申請學(xué)位級別：碩士專業(yè)：道路與鐵道工程指導(dǎo)教師：李成輝20090401西南交通大學(xué)碩士研究生學(xué)位論文第1J頁AbstractRail，fastenerrailcant，frictioncoefficient，sleeperspacingandsoonaretrackpower柚甜y面s，designoftheimportantparameters，butalsotheimpact

2、ofraillateraldeformationandreversedeformationoftheimportantreasonsHoweverresearchinthisareaformanyyearsmainlyinthetransverseboundtothewheelandrailsimplifiedmodelofthetwocontactcontactforcetoanalyzethedeformationoftherail

3、unableteacttealwheelrailcontact，andthereforethispapertostudythecontentsofthisissueisverynecessaryThispaperintroducesthedevelopmentoftracks仃1lcmrewheelrailcontactstatusunderthedeformationoftherailBasedonwheelrailcontactme

4、chanicsmedelsetuDtoconsiderfromeccentricvorticalforceandhorizontalforceoausedbylateraldeformationof血erailandt11ereasonsforreversingthedeformationoRthebasisofthetwoelastomeraHertzcontacttheoryasthetheoreticalbasis，theuseo

5、fANSYSsoftwaresetup，includingtherail，wheels，fastenersandrailcantofthefiniteelementsolidmodelWheelrailcontactolltheroleofthevafiomworkingconditionanalysis，bychangingthetrackundertheCUShionstiffness1ateralstiflhessfastener

6、bucklethesizeofstressthesizeoftrackattheendoftheslopethefrictioncoefficientofthesize，sleeperspacing，atetoanalyzethesizeofrailhorizontaldeformation，deformationandrailreversethechangesoflateralrigidityfortherelevantparamet

7、ersselectedtoprovideareasonabledesignbasisApplicationoffiniteelementmodelofraildeformationstudies，resultsshowedthat∞canffieverticalforceandhorizontalfomechangeshaveledtailmusthaveahorizonmldeformationandtorsionaldeformat

8、ionWhenthelateralforceat(10kN，20k1哪betweenthechanges，thehorizontaldeformationoftherailandreversetheeffectsofrelativelylargedeformationInaddition，thebucklefastenesontheraildeformationstresshaslittleeffect，buttoomuchstress

9、willbereducedwithholdingelasticfastenerfastenerfatiguedamagecausedtoincreasethedifficultyofmaintenanceitisrecommendedbynationalstandardsorcontrolataroundlOkNappropriateKeywords：rail，reversedeformation，railcant，frictionco