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Parameter identification of the eigensystem realization algorithm (ERA) and practice

. 24l7.96l8.1722.38 of modal No. B ~ 1423.4227.6627.9830.7833.6036.2337.55 flutter rate 'hNo. 15 ~ 2038.6l41.9342.7344.9346.0646.74 Juan of the study measured the actual running of the car phenomenon may occur,[link widoczny dla zalogowanych], indicating that the engine mounting system for a vehicle frame of the resonance is caused by vibration of the important reasons. Accordingly match the dynamic performance and structural changes. To improve the performance of vehicle vibration. VI, Conclusion 1. ERA. Decomposition method can quantitatively and noise inherent in the system modal state chopsticks, identification precision} dozen effective singular values and modal confidence factor is very important quantitative values, modal parameter identification for improving the confidence level is effective. 2. Digital simulations show that, ERA. Method has strong anti-noise ability of the root and several buildings stability, after all,[link widoczny dla zalogowanych], a better overall time-domain identification algorithm parameters. 3. Practice shows that .NASA / JPL, 19842Fo knock heGE. computer numerical methods, Beijing Tsinghua University, Beijing Publishing Mu .19873 Ibr ~ khlmSR.Randomdec ~ ememtech. ~ uefoTmodal; dentificsfionofstructures.A like J.ofSl ~ eec.TaftandRocke twisted .1977} (14/11 ) l696-7004 beard is so. torsional vibration of vehicle transmission identification screen. Automotive Engineering .199; ~ {(1): 32.385 beard is so. Modeli ~ procedureofanalysis & testof ~ utomolfiledy iv. Xiu htemationa】 ModelAm]. yslsC0nl stare enceandE ; t, U.S.A., FIorada, Jn.19906 Fu Qiang,[link widoczny dla zalogowanych], MG chew things. drum turning screaming din of noise Cou state identification Automotive Technology .19 gO, (1O): l6-23 Vibration Engineering 5 dependents EigensystemRealizationAlgorithm (ERA) ofParameterIdentificationandItsApplicationGuoZ ~ gyang (AutomobileE head iColh ~, HarbinI ~ tltuteTcclmoloivyH ~ bi. · 150006) at HZizheng (Nadv ~ dLaboratoryofAu ~ nobi] eD dwdb ∞ theb-Ijcw ~ ipleofEigensystemReal ~ tlo. Algoritlun (ERA)-I-dthed Ba rio. . oftWoindj ∞ tol cents ofTnod | dpuredegree, analyzesandexaminestheERAidentification ~ paMlltyby which. haimulate. ddatawithdiffereaatnOlevelIdescribesthel ~ tlrametc; rideutiflcatti (ynofautomobi | ~ e summer. Xiu emou ~ lts · ThepracticeshowsthatERAhasitproepectinaq coffee appllcations.key-lpI Ⅲ bang stare that most of ni Ⅲ ioII · minimizedrecitation,[link widoczny dla zalogowanych], ●} jack llrj | y, randomdecrementle ~ slnemount ● ●

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