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 Wysłany: Nie 3:48, 08 Maj 2011 Temat postu: ed hardy lippis Limited number of measuring points |
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Limited number of measuring points based on the structural damage diagnosis information
Positioning unit rate of change of modal strain energy method. Vibration Engineering. 1998; 11 (3) :356-36O5 Shizhi Yu . Luoshao Xiang , ZHANG Ling Mi . Modal strain energy method by the diagnosis of structural damage in the experimental study . Southeast University ,[link widoczny dla zalogowanych], 1999; 29 (2): l3 ,[link widoczny dla zalogowanych],1-1386 Shizhi Yu . Yi Lu orders . Diagnosis based on modal strain energy method for the structure damaged correction . Southeast University . 2000; 30 (3) :84-877MessinaA. WilliamsEJ. ContursiT. Structuraldam-agedetectionbyasensitivityandstatistical-basedmethod. JournalofSoundandVibration, 1998; 216 (5): 79l a 8088FedorovVV. TheoryofOptimalExperiments. NewYork: Academic,[link widoczny dla zalogowanych], translatedandeditedbyStuddenWJandKlimkoEM, l972: 289ShiZY. LawSS. ZhangIM. Damagelocalizationbydirectlyusingincompletemodeshapes. JournalofEngi-neeringMechanicsASCE. 2000:126 (6) :656 - 660StructuralDamageDetectionfromLimitedSensorInformationShiZhiyM (CollegeofAerospaceEngineering. NanjingUniversityofAeronauticsandAstronauticsNanjing.210016) AbstractTheincompletenessofexperimentalmodeshapeisthemainobstaclewhichhindersthedevelopmentofstructuraldamagedetection. InordertOsolvethisproblem,[link widoczny dla zalogowanych], amethodofoptimizingsensorplacementanddetectingthedamageinthestructureispresentedinthispaper. ThesensorplacementsareoptimizedaccordingtOtheirabilityofcollectingstructuraldamageinformationbasedontheeigenvectorsensitivitymethod. Onlylimitednumberofdegrees-of-freedomofthestructuralincludingplentifuldamageinformationisinstrumented. Incompletemodesyieldedfromtheseoptimumsensorlocationsaredi-rectlyusedtOlocatethestructuraldamage. Numericalexampleshowsthatthisapproachiseffectiveandrobustfordetectingstructuraldamageusinglimitedsensorinformation. Keywords: vibration; modalanalysis; parameteridentification; damagedetection the first of the men Shizhi Yu ,[link widoczny dla zalogowanych], Ph.D., associate professor of Health in December 1967 . Phone : (025) 4892104; E-mail: zyshi @ nuaa. edu. cn
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