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- W159574820 abstract "The paper presents a new method to detect damages in beams and assess their location and severity by means of vibration measurements. Typically, changes in natural frequency of beams are relatively small, even for an important reduction of their cross-section; this is one of the major difficulties in locating damages in this way. Our research takes into account the particular manner in which the natural frequencies of the first ten bending modes change due to the occurrence of damage. It is a pattern recognition problem, the measured frequency changes being compared with values contained in a database, determined using the FEM. By comparing the shift in frequency obtained through measurements with those determined using the FEM it was possible to locate damages and estimate their geometry with high accuracy, which leads to the conclusion that the method can be successfully used. The method was validated by experiments." @default.
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- W159574820 date "2011-04-28" @default.
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- W159574820 title "How to correlate vibration measurements with FEM results to locate damages in beams" @default.
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