College 10 15 nov 2010

Ir.J.Ph.C.WubbenJ.NoordmanIngK.HalbersmaDay11nov172009;11.3MaintenanceSchedulingModelsStudyMaterialMarquezchapter1414.1IntroductiontotheMaintenanceschedulingprocess14.2CPMenPERTMethods14.3MaintenanceSchedulingandCostAnalysingmethod14.4UsingMonteCarloforPMschedulingDay11.3MaintenanceSchedulingModelsStudyMaterial14.1IntroductionMasterlongtimeWeeklymaintenancescheduleDailymaintenancescheduleScopeofschedulingprocessDay11.3MaintenanceSchedulingModelsIntroductionScopeofschedulingprocessDay11.3MaintenanceSchedulingModels14.2CPMandPERTmethodCPM1957mr.WalkerDuPontenmr.KellyofremmingtonRandPERT1958PolarissubmarineFocusedon:Projectduration?InvolvedRisks?WhatarecriticalactivitiesProjectprogress?:Ahead,onorbehindscheduleHistoryDay11.3MaintenanceSchedulingModelsCriticalPathMethodCPMDay11.3MaintenanceSchedulingModelsProgrammedEvaluationReviewTechniqueDay11.3MaintenanceSchedulingModelsCasestudyCPM/PERTDay11.3MaintenanceSchedulingModelsCasestudyCPM/PERTDay11.3MaintenanceSchedulingModelsCasestudyCPM/PERTDay11.3MaintenanceSchedulingModelsCasestudyCPM/PERTDay11.3MaintenanceSchedulingModelsCasestudyCPM/PERTDay11.3MaintenanceSchedulingModelsCasestudyCPM/PERTDay11.3MaintenanceSchedulingModelsCasestudyCPM/PERTDay11.3MaintenanceSchedulingModelsCasestudyCPM/PERTDay11.3MaintenanceSchedulingModelsCostAnalysisMethodDay11.3MaintenanceSchedulingModelsCostAnalysisMethodDay11.3MaintenanceSchedulingModelsCostAnalysisMethodDay11.3MaintenanceSchedulingModelsCostAnalysisMethodDay11.3MaintenanceSchedulingModelsCostAnalysisMethodDay11.3MaintenanceSchedulingModelsThehiddencostarehigh051015202530BudgetExtraWorkAdditionalTotal051015202530LostProductionExtraLostProductionTotalA30%longerandheaviershutdownLeidsto30%aditionalcostseneenlengtheningof30%.Thetotalcostsareincreasingwith80%NETWORKPLANNINGPRECEDENCEMETHODE1.Whatisnetworkplanning?PresentationofallactivitiesandtheirmutualrelationWeergavevanonderlingerelatiesvanactiviteitenvaneenwerkopdracht(order).Objective:informaboutthroughputtime,resourchallocationandprojectcostsPrecedenceMethodeActivtiesarerepresentedbyblocksEachBlockcodedbyUniqueactivitynumberThroughputtimeResourceneedEarliest/lateststartEarliest/latestfinishLagtime130repairVSLSVELETRelationships:EndStart140maystartjustwhen130isfinished130demonteren140transport150CRelationships:EndStart150maystartjust24hoursafter140isfinished24hours=lagtime130demonteren140transport150C24130C=painting140D=assem-bling6uurStartStartStartStartRelationwithdelayOverlapactivities:When6hoursofactivitieFiscarriedout,activityGhastostartWhenFisreadyGhastobereadyafter12hours.130F140D6uur150F170G6hours-2houes12hoursRelationswithmoreactivities:40J90M35I85N30H75K80LHowmanyroutes?STARTAEGIHKLDBCFJEINDEM5routesSTARTAFEGJIHKLDBCEINDEM12345Howmuchtime?STARTAEGIHKLDBCFJEnDM221561534122463STARTAFGJLDC68+20=8824000002401024303438206812528814183434+18=52CalculateforwardEIHKEnD10010010010007211149382917793=100-768=82-1477=91-146882=93-1191=93-2CalculatebackwardsDeterminationofBuffertimeSP=LE-VE=LS-VS=23-20=15-12=3130Mounting1220152338CriticalPathallactivitieswithbuffertimeequalszeroExampleSTART0EINDE0812626hCriticalPath6AG3E8BF4CD=CriticalactivitieExampleearliestandlateststartSTART0EINDE0812626hKritiekepad6AG3E8BF4CD=Activitywithbuffertime26h6A8B4CSTART0FINISH0A6hVS0VE600000626h6A8B4CSTART0FINISH0A6hB8hVS0VEVS66VE1400000661426h6A8B4CSTART0FINISH0ABCVS0VEVS66VEVS1414VE18262626260000066141418buffer8h26h6A8B4CSTART0FINISH0CLS22LE26262626260000Theymayearly,butmayalsolatestart.222606614141888826h6A8B4CSTART0FINISH0BCLS14LELS2222VE262626262600001422222606614141888826h6A8B4CSTART0EINDE0ABCLS8LELS1414LELS2222VE262626262600008141422222606614141888826h6A8B4CSTART0Finish0ABCLS8LELS1414LELS2222VE2626262626000081414222226066141418888buffer8h14.4UsingMonteCarloModellingCPM1957mr.WalkerDuPontenmr.KellyofremmingtonRandPERT1958PolarissubmarineFocusedon:Projectduration?InvolvedRisks?WhatarecriticalactivitiesProjectprogress?:Ahead,onorbehindscheduleHistoryDay11.3MaintenanceSchedulingModels14.4UsingMonteCarloModellingHistoryDay11.3MaintenanceSchedulingModelsCase:CapacityConstrainedproductionSystemDay11.3MaintenanceSchedulingModelsModelling:CapacityConstrainedproductionSystemDay11.3MaintenanceSchedulingModelsModelling:CapacityConstrainedproductionSystemDay11.3MaintenanceSchedulingModelsInformationrelatedvariables(Continued)Modelling:CapacityConstrainedproductionSystemDay11.3MaintenanceSchedulingModelsModelling:CapacityConstrainedproductionSystemDay11.3MaintenanceSchedulingModelsModelling:CapacityConstrainedproductionSystemDay11.3MaintenanceSchedulingModelsModelling:CapacityConstrainedproductionSystemDay11.3MaintenanceSchedulingModelsDecreaseofsystemageDecreaseofsystemageDuetocorrectivemaintenanceDecreaseofsystemageDuetopreventivemaintenanceIncreaseofsystemageDecreaseofsystemageSystemageModelling:CapacityConstrainedproductionSystemDay11.3MaintenanceSchedulingModelsProductionFlowStopsduetomaintenanceTimelastcorrectiveMaintenancestartedTimelastpreventiveMaintenancestartedProd