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 Wysłany: Nie 3:14, 08 Maj 2011 Temat postu: magasin abercrombie Based on wavelet analysis of s |
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Based on wavelet analysis of simply supported beam crack identification method
1 with the anti-wavelet high poison into disgrace; Phi Dan based on small screen simply supported truss foot crack identification method according to the results of 85 variables. It can be seen in the crack location has a zero-crossing. By identifying the location of the point, can be obtained, and then strike = 7 '. . Beam can be determined to Support the location of the crack. Figure 5 (c) is the use of small crossing symmetry transformation results can be seen from the figure in the cracks there is a peak point, the same point by identifying the location of slander can determine the location of the foot crack. In practice, the use of symmetric wavelet transform is better, because by its transformation will produce a peak. Facilitate the use of software to identify, and use the software much more difficult to identify the zero-crossing delay, because the number of zero values. 5 Conclusion This article is part of the bridge dynamic assessment, the authors try to use the analysis of small cracks in transition to identify,[link widoczny dla zalogowanych], due to environmental constraints, can not be real bridge test, the test in the real bridge, there are many of the same title Ya need to consider, such as speed control,[link widoczny dla zalogowanych], interference generated. Will lead to identification 谩 whole, must be carried out several tests, knowledge cut in order to determine the location of fracture method has some advantages car, there is hidden structure of house beam damage can also use this method, it is not possible with other methods . Therefore, Xuan bridge fault diagnosis method has the high value ◠■1 bamboo mat paper car set beetles. Lu Chi Sang fixed bridge structure and pulled. Beijing China Railway Publishing House. 19922RW Clough, J mat-chun. Wang Guangyuan shame translation. Results Keli force palm. North Palm argumentation Press, 19913 Su Qing, cabinet drift mining,[link widoczny dla zalogowanych], utility of a small contingent. Xidian University, Xi'an t Publishing Mu. 19944AbdunurcC, Duch ~ e】 L. Structuralassessmentofabridgewithtransvmmalcracks. BridgeEvalua-tion. RepairandRehebl / ization. KluwerAcademicPublishers, 1990 | 489 - 499IdentificationofSimple-SupportedBeamCrackyMeansoftheWaveletAnalysisGaoB, tgShiLiangping (Dart.ofMechanical & ElectronicEngineering · BeijiIIgUniversityotPo6ts & TeleeomunicatlonsBeijing · 100088) ShiTitlinngShux, i (SchoolofMechanicalEngineering, HuazhongUniversityofScienceand | y · especiallytheunobservantdamage.WiththeanalyKmal1dslmuletions. wefindthattheapplicationisquitesuccessfu1.Themethodpresentedheremaybeusefulinbridgefailurediagnosis.Keywior ~ | IhilurediagnosisIvibrationanalysis, wave | atanalysislcrack bamboo mat as a treasure for men ◠away. Lecturer,[link widoczny dla zalogowanych], July 1961 students.
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