欢迎来到天天文库
浏览记录
ID:36562533
大小:4.48 MB
页数:106页
时间:2019-05-12
《汽轮机组振动故障诊断SVM方法与远程监测技术研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、东南大学博士学位论文汽轮机组振动故障诊断SVM方法与远程监测技术研究姓名:汪江申请学位级别:博士专业:动力机械与工程指导教师:陆颂元20050401AbstractWiththerapiddevolopmentofpowerindustr弘itasksmor0onthecondition撇n主tOri嘴andf矗u王tdiagnosisofturbO—gener柏rtThepapermade融intens主ve泓va王毽妻b{est醢dy秘lsevefalkey恕e酝ologios鑫ssOci囊t。dwi氇氆e如velopm。n}of盎醢ltdiagnostics,whichin
2、cludeanr王butee×拓ac拄onofvibra舡on士矗ult,multi—symptom妇uitdiagnosis,vibrationconditionmonitoring,Vibrationfault骶ndfo辩castiHgandremoteominemonitoringanddiagnosis.Ch硅raete靠sticsofvibr采io拄f矗醢ltan畦蠡矗tsv擞辩。越章ofturbinegene稼torsaros糖di罚,A叠wnewm蕊bo纛s最∞鞋瓣d孙r求拄ib啦eeX{rao螽。鞋ofvibrat沁鞋翕uitsvmptom,AMann.Kenda
3、lltestisusedtoex甜acttrendsvmptomofvibrationpar蛐eters:anEMDmothodandaoorrelationcOe黼cientonear0usedtoextractcorrelationsymptom:aniⅡvariantmomentmethod趣used馋ex搬蛇tgra两iealsy氆p{om0fs酝蠡ce燃ero南主{。Anowmachineloa耵l至ngmethod—SupportV岳ctorIⅥachines’hasbeenusedtodetectvibr戤ionabnormmity,predictv主b豫tiona
4、n娃faulttrelld,a雅dtodia黛nosevibrationfault.Basedona珏alvsisof0ne,elassSV泰疰lll嚣Or玻anewvlbr采io珏ab珏。鞋矬8litv&tee鑫on髓le毫hodh8sb∞n蝥疲受fward南r或e黼莨}rbir硷gene鞠幻r强its+T赫sOne.ClassSVMabnormalitydetectionmemod,requireonlysamplesgatheredwhenturbinegenoratorsareingoodorder’whichfind8as01utiOntolackofabnornlal
5、扛越ningsamples.Compariso珏te或s弼mFuzzyA}WlandARTMAp菲eu豫lnetwo矗s囊eme氇。畦瓤s氇esissu筑ges钯琏havea簿oodperfofman∞.Amulti_classclassi=fleThasbeenbrin叠forwardandbeenusedforvibrationfaultdiagnosis,whichShonentimew量len诚ningclassifiorw溉f翻lts燃ples,alld黔tridof伯erejectionc王assifyin蠡whichwiHb尊foundinsomemulti.svm
6、classmers。suchas氆eone吨鬈a圭矬st—oneSV蛰矗。建e.A珏。墩er蠡u壬t矗ia窭nos远辩。巷el娃si琏嚣。拄e.el鑫ssSV泰莲如s蠢sobeenm最de,whichexte鞋dsc8#abiii婶0fd诬g£站s括modolb掣ad磊newOnc—CIassSVMclass黼ordvn锄icajlv.ThethooryofsupportVectorregre8sionandtheapplicationofLS—SVMintimese畦espredie蛀。珏havebeonstudied.Anemul敛ion砖t。sthasbeenmadewhi
7、chprovesLS—S¥≥畦eaa}珐V。agoodpe薯热勰矗Iloew氧圣l鑫羲fneser垂esp。llH£e蘸bynoise鑫f薅g啦abettefresultthanRBFneuralnetworks.T量1ismemodwasusedtoDredictvibrationaIldfauhtrendfort眦bineg雠le}ators,whiohca鼙haveamo端accurate辩8ult,Atl黼tofthethesis,byusingJavaprogr㈣ing
此文档下载收益归作者所有