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ID:51617983
大小:2.14 MB
页数:94页
时间:2020-03-26
《工业工程专业英语 第2版 教学课件 作者 周跃进Chapter 2.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、Chapter2WorkStudyIntroductiontoWorkStudyUnit1MethodStudyUnit2TimestudyUnit3TimeMeasurementMethodsUnit4WorkSamplingIntroductiontoWorkStudyUnit1MethodsStudyTheDefinitionandContentofMethodsStudyStepsofMethodsStudyTheClassificationsofMethodsStudyPrinciplesofMotionEco
2、nomy1.TheDefinitionandContentofMethodsStudyWecandefinemethodstudyasthesystematicrecordingandcriticalexaminationofwaysofdoingthingsinordertomakeimprovements.FromtheFigure2-1,wecanseethatthemaincontentsofthemethodstudyincludeprocessanalysis,operationanalysisandmoti
3、onanalysis.2.StepsofMethodsStudySelecting—theworktobestudied&boundariestobedefined.Recording—therelevantfactsaboutthejobtoberecorded.Examininganddeveloping—thewaythejobtobeperformed.SixquestioningtechniquesAnalysiswith“ECRS”principles3.ClassificationsofMethodsStu
4、dyTherearethreemainclassesofmethodsstudy:processanalysisoperationanalysismotionanalysis.ProcessAnalysisProcessanalysisisoneofthemaincontentsofmethodsstudy,bywhichresearcherscancompletelyobserveandrecordthewholeproductionprocessesandcarryoutintegratedanalysisfroma
5、macroscopicviewpoint.ProcessAnalysisActivitysymbolsExplainExampleOperationIndicatesthemainstepsinaprocess,methodorprocedure.Usuallythepart,materialorproductconcernedismodifiedorchangedduringtheoperation.Drivenail,drillholeandtypeletter,etcTransportIndicatesthemov
6、ementofworkers,materialsorequipmentfromplacetoplace.Movematerialbytruck,elevatororcarryingInspectionIndicatesaninspectionforqualityand/oracheckforquantity.ExaminematerialforqualityorquantityTemporarystorageordelayIndicatesadelayinthesequenceofevents:forexample,wo
7、rkwaitingbetweenconsecutiveoperations,oranyobjectlaidasidetemporarilywithoutrecorduntilrequired.Materialintruckoronflooratbenchwaitingtobeprocessed,EmployeewaitingforelevatorStorageIndicatesacontrolledstorageinwhichmaterialisreceivedintoofissuedfromastoreundersom
8、eformofauthorization,ofanitemisretainedforreferencepurposes.Bulkstorageofrawmaterial,finishedproductinwarehouseProcessAnalysisProcessAnalysisFlowDiagramAdiagra
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