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1、分类号编号xx大学毕业论文船舶液压起货机故障探析TheAnalysisofHydraulicShip-CraneFailure申请学位：工学学士院系：xxx学院专业：轮机工程姓名：学号：指导老师：xx年xx月xx日xx大学II[摘要]船舶液压起货机液压系统的故障诊断和维修一直是船舶维修工作的难点之一。对该液压系统进行状态监测和故障诊断是一门综合技术。它可用于掌握系统各液压设备的实际运行情况,判断系统质量的优劣,预测故障的发展趋势及危害程度,查找故障的原因、部位及异常程度,实现设备的预防维修和正常维修,从而提
2、高系统各液压设备的可靠性。液压起货机液压系统常见的故障有以下几种系统没有压力或压力不足,工作部件运行时爬行,系统有噪声和振动,工作机构的运行速度不够,系统泄漏严重,非正常发热和动作不能实现等。本文用了功率流的故障诊断方法，它与逻辑分析相结合,能大大提高液压系统故障诊断的快速性和准确性,可广泛利用于船舶液压系统的故障诊断方面。通过对液压起货机的故障分析得出除个别故障属设计缺陷所造成之外，绝大部分故障与液压油的污染或日常维护管理不善有关。所以，提高液压系统中油液的清洁度，建立必要的维护管理体系,提高维护管理人员
3、的专业知识，是降低液压起货机故障发生率最为有效的途径。关键词：液压起货机；故障；诊断IIAbstract：HydraulicCraneship'shydraulicsystemfaultdiagnosisandmaintenanceoftheshiprepairworkhasbeenadifficultone.Thehydraulicsystemconditionmonitoringandfaultdiagnosisisacomprehensivetechnology.Itcanbeusedforhydra
4、uliccontrolsystemoftheactualoperationofequipment,determinethemeritsofqualitysystems,forecastthedevelopmenttrendoffailuresandextentofharm,failuretofindthereasons,locationandextentofanomalies,andpreventivemaintenanceofequipmentandnormalmaintenance,improvethe
5、systemofhydraulicequipmentreliability.HydraulicCranehydraulicsystemfailuresarecommonfollowingpressureorpressuresystemisnotlackofworkingpartsrunningreptiles,thesystemnoiseandvibration,theworkofrunningspeedisnotsufficient,systemleakageserious,non-normalfever
6、andactionCannotbeachieved,andsoon.Inthispaper,thepowerflowoffaultdiagnosismethod,itisthelogicofthecombination,cangreatlyincreasethehydraulicsystemfailureandrapiddiagnosisofaccuracyandbewidelyusedintheship'shydraulicsystemfaultdiagnosis.Cranethroughthehydra
7、ulicmachinethatinadditiontothefailureofindividualfailureiscausedbydesignflaws,failuresandmostofthehydraulicoilpollutionorpoormanagementofthedailymaintenance.Therefore,theincreaseofoilinthehydraulicsystemofcleanliness,theestablishmentofthenecessarymaintenan
8、ce,improvethemaintenanceandmanagementexpertise,hydraulicCraneistoreducetheincidenceoffailureofthemosteffectiveway.Keywords：HydraulicCraneMachine；Fault；DiagnosisII目录绪论11IHI液压起货机起吊系统故障分析21.1IHI液压起货机起吊系统分析21.2基于
