 Posted: Sun 3:25, 08 May 2011 Post subject: Óculos Oakley The cantilever based on wavelet fini |
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The cantilever based on wavelet finite element crack identification erecentdevelopments. JournalofComputationalandAppliedMathmatics, 2001; 128:133-18513NandwadaBP, MaitiSK. Detectionofthelocationandsizeofacrackinsteppedcantileverbeamasedonmea-surementsofnaturalfrequencies. JournalofSoundandVibration,mulberry tasker, 1997; 203 (3) :435-44614ChinchalkarS. Determinationofcracklocationinbeamsusingnaturalfrequencies. JournalofSoundandVibra-tion,ed hardy lippis, 2001; 247 (3) :417-429Identificati0nofCracksinCantileverBeamBasedonWaveletFiniteElementMethodsLiBingChPXuefengHuQiaoHeZhengJia (SchoolofMechanicalEngineering, Xi'anJiaotongUniversityXi'an,christian louboutin sko, 710049) Inthispaper, theblemiStodetermineforwardandinverseproblemsinthedetectionofcracksincantileverbeamarestudied. TheforthreenaturalfrequenciesofthecrackedbeamtOgivethelocationandsizeofthecracknverseproblemistOdeterminethelocationandsizeofthecracktOgivethefirstfewnaturalfrequenciesofthecrackedbeam. Basedonwaveletfiniteelementmethodsthemodelofacrackedcantileverbeamwithrectangularcross-sectionasanexampleisconstructedandthefirstthreenaturalfrequenciesareobtained. Thecrackismodeledasarotationalspring. AfastalgorithmispresentedtOsolvetheinverseproblem. Thenthegraphsofspringstiffnessversuscracklocationareplot-tedforeachnaturalfrequency. Thepointofintersectionofthecurvesgivesthelocationofthecrack. Thenumericalexampleindicatesthatcurrentmethodiseffectiveandaccurate. ThisstudyprovidesanewmethodfortheprognosisanddiagnosisoferacksinstrilcturesKeywords: beam; crack; identification; wavelet; finiteelementmethods Bing male first author ,jordan shoes, doctoral students in December 1976 . Phone : (029) 82667963; E-mail: bli @ mailst. xjtu. edu. cn 相关的主题文章： mac cosmetics discount Indonesia's richest investm mulberry outlet Crisis, with franklin & marshall Nanjing BenQ Hospital HVAC Sys |
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