接触网系统可靠性与维修性研究

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1、西南交通大学硕士学位论文接触网系统可靠性与维修性研究姓名：罗松松申请学位级别：硕士专业：机械电子工程指导教师：邓斌20081201西南交通大学硕士研究生学位论文第1I页AbstractWiththedevelopmentofhi曲一speedrailway,thespeedoftrainhasconstantlyimprovedinrecentyears，SOthereliabilityandmaintainabilityofthecatenaryaleespeciallyimportant．Toevaluatecatenary’Sservicebehaviorofthehi曲’sp

2、eedrailway,wenotonlyresearchsystem’Sstructureandestablishreliabilitycalculationmodel，butalsoresearchthemaintainabilitythatifwecallrepairitinshorttimetoresumeitspreviousworkingsituationwhenitfailure．ThethesisundertakesstaticsanddynamicsanalysisofthecantileverstructurebyFEAsoftware．Staticstressan

3、dstrainunderdifferentworkingconditionsandfirst10stepsnaturalvibrationfrequenciesareeduced．Wealsoanalyzedynamicresponseofcantileverstmctureunderperiodicloadsandresearchvibrativeeffectswhenthetrainpassthroughthecantileverstructurewithaspecialspeed．Alloftheseprovidebasisfordesignandcalculationofca

4、ntileverstructureinthefuture．Thethesisundertakesreliabilityresearchofstructurecomponentsandconnectlinebasedonrelevantfuzzymathematicaltheory．Mathematicmodeloffuzzyreliabilitycalculationisestablishedwhichimprovestraditionalreliabilitycalculationmodel．Themainresearchobjectinchapter4iscatenarysyst

5、em．Maintainabilitymodelofsystemisestablishedinthischapterandwealsodosomethingaboutmaintainabilitydistributionbasedonfuzzymathematictodistributemaintainabilityindicatorstoeverycomponentofsystem．Withthedevelopmentofscienceandtechnology,manynewtechnologyshavebeenusedinresearchandproductionofcatena

6、rysystemwhichimprovereliabilityofsystembutenhancecostsofresearchandproduction．Thethesisundertakesrelevantresearchonlifecyclecostofcatenarysystemandbalancesreliability、maintainabilityandeconomizationtooptimizeeveryindicatorofsystem．Keywords：catenary；FEA；reliability；maintainability；economization西

7、南交通大学学位论文创新性声明本人郑重声明：所呈交的学位论文，是在导师指导下独立进行研究工作所得的成果。除文中已经注明引用的内容外，本论文不包含任何其他个人或集体已经发表或撰写过的研究成果。对本文的研究做出贡献的个人和集体，均已在文中作了明确的说明。本人完全意识到本声明的法律结果由本人承担。本学位论文的主要创新点如下：将模糊数学的理论和方法应用于对接触网零部件可靠度计算模型的建立上，建立了接触网零部件模糊可靠度计算模型，改变了传统可靠度计算模型存在的不科学以