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Based on modal theory calculation of Blade Dynamic Frequency

ChengYehPrecictionofrota [ingblademodesfromllleasuredstaticmodalparame * ersTransactionoftheAE, JournalofVibrat: onandA-COH ~ tics. 1991} ll3 (5) · 44l a 4d73 Yang Jingyi . Wang Xinyi . Experimental modal analysis . Beijing: Beijing Institute of Technology Press , 19904 turn on the kinetic theory Zhang ,[link widoczny dla zalogowanych], Beijing: Science Press. 【 99 (15 [rretierHNumericalanalysisoftransientresponselr) bla 【 1edvnami3 ~ InternationalConfr Ⅲ 0nVlf] r1tion; nRotatingMachinery. 1984: C32O/84 · 255-2676 Luozhao Ting . Zhang Qi . Modal analysis in turbine blade vibration measurement . Turbine Technology , 1996; 33 (3): l A 77 Hu Deming . Wang Jian . Turbine blade static and dynamic frequency and mode of numerical calculation . Turbine Technology ,[link widoczny dla zalogowanych], 199t, 33 (3): jO-jAModalMethodfortheCalculationofBladeDynamicFrequency'YangdiangangHuanglBaohua (NationalEngineeringResearchCenterofTurboGeneratorVibrationAbstractThesafeandrebabteoperationof_llargeturbogeneratorunitisdirectlyinfluencedbythebladevibrationcharac-teristicsoftheturboThedistributionofbladedynamicfrequenciesunderrotationconditionisallimportantfactorthatmustbeconsideredduringthedesignstageandfaultdiagnosisAne ~,[link widoczny dla zalogowanych], vmethod {orthecalculationofbladedynamicfrequenciesispre,[link widoczny dla zalogowanych], entedinthispaper.ThedynamicequationofthebladeinoperationstateisreconstructedbasedonthestaticblademodalparametersThedynamicfrequeniesaresolvedfromtheequation.Thebladeradiustolengthratio · settingangie, altitudeangle.couplingbetweentwovibrationdirectionsandcouplingbetweendifferentmodescanbeconsideredinthenewmodelAnothernewmethodforthecalculation0fbladedynamicfrequencycoefficientsisalsopresented.ExampleintheendofthepapershowsthattheaccuracyisimprovedbythenewmethodKeywords: blade; vibration {strength: turbogeneratorunit first author PROCEEDINGS Male . PhD . Associate Professor ,[link widoczny dla zalogowanych], January 1970 students. Phone : (025) 3792525-8000; E-mail: [link widoczny dla zalogowanych] № which

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