資源描述:
《機車調簧研究與車體調簧試驗臺設計》由會員上傳分享,免費在線閱讀,更多相關內容在學術論文-天天文庫。
1、中南大學碩士學位論文機車調簧研究與車體調簧試驗臺設計姓名:楊振祥申請學位級別:碩士專業(yè):交通運輸工程指導教師:潘迪夫;付俊英20061101確性。通過對實際各型機車車體的檢測與調簧試驗,還發(fā)現機車車體設計制造過程中存在的問題,并提出了相應的改進性建議。同時,論文對后續(xù)研究工作提出了進一步的設想和打算。關鍵詞機車:軸重分配;二系載荷;調簧;試驗臺lIABSTRACTTheuniformityofloaddistributionoflocomotivewheels(axles)playsallessentia
2、lroleintheadherenceofhaulingcapabilityanddynamicandbrakeperformanceforhigh-speedandheavy—loadlocomotives.Forthelocomotivewithsecondaryhangingstructure,itssupportingspringloaddistributionisthemainfactortoinfluenceweightdistributionoflocomotivewheels(axles)
3、.Thestaticallyindeterminatesupportingstructure,timdeviationofsyntheticalrigidityanddeformationintheelasticconnectionbetweeneachwheelsetandlocomotiveandthedeviationofthegravitycenteroflocomotiveshallconsequentionallycauseloadoneachwhcelsetnotuniform.Theemp
4、hasisofthispaperistominimizetheultimatedeviationofeachwheelloadfrommeanloadbyadjustingactualdeformation(addwasher,“springadjustmem’1forshort)associatingwithactualsyntheticalrigidityofeachspringsupportingonthebasisofmeasuringthevalueofgravitycenterdeviatio
5、n.Contentsasfollowing:1.EducetheminimumvalueofthemaximaldeviationsofeachwhcelsetloadfrommeaIlloadwhenlocomotivegravitycenterdeviationisknown,2.Givetheschemetodistilbutethewhcelsetloadundertheminimumstatus.3.GivethewaytOreachthestatusbyadjustingthethicknes
6、sofprimaryandsecondaryspring4.Givethemaximumaccepteddeviationvalueofgravitycenterofeachtypelocomotiveifme吼aboveperfectstatusby刪ustingspringunderexistingmanufacturestandardoflocomotiveAccordingtotheconclusionresultingfromabovestudy,twoprojectstosolvethespr
7、ingadjustmentproblemarebroughtforward.Theyarcdesignrespectivelyforbogieloadtestingspringtest-rigandlocomotivebodyloadtestingspringtest-fig·ThefirstspringandthesecondaryspringarcadjusteAintheirowntest-rig·Bythereseagfch,thispa:perputsforwarddesignrequireme
8、ntsforthetwotest-rigs’manufacture.Italsogivesthemainintroductionofspecificdevelopmentanddesignrelatingtothelocomotivebodyloadtestingspringtest-rig.TheaxleloaddistributionisnotIlluniform,thisismainlyduetoimperfectdis