ASQ免费网络研讨会：基于状态的系统维护简介

[i=s]本帖最后由cyber于2012-4-1113:09编辑[/i]

本周日，北京时间4月15号上午10点到11点，ASQ可靠性分会将举行本月的免费网络研讨会，主题：基于状态的系统维护简介)。邀请了华人可靠性专家刘潇博士主讲。欢迎大家通过以下链接注册。[url=http://reliabilitycalendar.org/The_Reliability_Calendar/Webinars_-_Chinese/Entries/2013/1/29_Introduction_to_Condition-Based_Maintenance_(ji_yu_zhuang_tai_de_xi_tong_wei_hu_jian_jie).html]基于状态的系统维护简介[/url]有问题可以和我联系。

TOPIC:IntroductiontoCondition-BasedMaintenance(基于状态的系统维护简介)

PRESENTER:Dr.LiuXiao(刘潇)
Post-Doc,RutgersUniversity

DATE:
BeijingTime:April15,2012;10:00am-11:00AM
USPacificTime:April14,2012;6:00PM–7:00PM

DESCRIPTION:
CommonlyusedmaintenancestrategiesvaryfromsimpleonessuchasCorrectiveMaintenance(CM),whichisperformeduponsystemfailure,toPreventiveMaintenance(PM)wheremaintenanceactionsaretakenatscheduledtimeintervals.Bothstrategies,however,havelimitations.Recentadvancesinsensors,controlsystems,softwareengineering,andcommunicationtechnologyhavepromptedmanufacturerstomovetowardstheconditionmonitoringofsystemhealth.Maintenanceisperformedbasedontheobservedsystemcondition,whichisreferredtoasCondition-BasedMaintenance(CBM).ThispresentationgivesacomprehensiveintroductiontoCBM,andintroducesamethodforCBMschedulingforsystemswithmultiplefailuremodes.Itisobservedinsomeapplicationsthatthehazardratecorrespondingtoeachfailuremodedependsonbothtimeandsystemstate.Thesystemstatestochasticallydegrades,andthedegradationrateisoftenafunctionoftimeandthedegradationlevelatthatparticulartime.Amaintenancealarmisusedtosignalwhenthedegradationreachesathresholdvalue.Anewjointmodelisdevelopedforthestochasticallydependenttime-to-maintenanceduetosystemdegradationandtime-to-failureofdifferentfailuremodes.Themodelisthenutilizedtoobtaintheoptimumthresholdvaluethatmaximizesthesystem’savailabilityoveritslifecycle,or,minimizesthelong-runcostperunittime.Aillustrativeexample,usingreal-lifedatafromareliabilitytestofcommunicationsystems,isprovidedtodemonstratetheapplicationoftheapproach.

PRESENTER:
Dr.Liuisapost-docresearcherworkingwithRutgersUniversity,USA,andQatarUniversity,Qatar.HereceivedhisPh.Ddegree(IndustrialEngineering)in2009fromtheNationalUniversityofSingapore.Beforethat,heobtainedhisB.Eng(MechanicalEngineering)in2004fromHarbinInstituteofTechnology(HIT),China,andspentonesemesteratHongKongUniversityofScienceandTechnology(HKUST)asanexchangestudent.Hisresearchfocusesonreliabilityengineeringandappliedstatistics,andhehaspublishedinpeerreviewedjournalsincludingJournalofQualityTechnology,IEEETransactionsonReliability,etc.HeisthewinneroftheRAMS2011RalphA.Evans/P.K.McElroyAwardforBestPaper.