Condition monitoring of vibrating steel‐reinforced concrete beams through wavelet transforms

Emerald - Tập 24 Số 2 - Trang 154-162 - 2006
F.J.Carrión1, A.Lozano2, V.M.Castaño1
1Facultad de Ingeniería, Universidad Autónoma de Querétaro, Querétaro, Mexico
2Consejo de Ciencia y Tecnología del Estado de Querétaro, Querétaro, Mexico

Tóm tắt

PurposeThe purpose of this research is to show that wavelets are mathematical tools capable of separating vibration data into different frequency components, allowing the study of each component with a resolution matched to its specific time scale. Wavelets have advantages over traditional Fourier methods, particularly when a signal contains sharp spikes, discontinuities, and transients.Design/methodology/approachThis paper presents a brief description of wavelets and shows their application to the analysis of typical transient signals due to vibrations in a steel‐reinforced concrete beam.FindingsThe research clearly shows that it is possible to evaluate modes and components separately by using the wavelet analysis.Originality/valueThe beam analysed can be used as a simple model of other more complicated structures, such as bridges and other high scale civil engineering constructions, where vibration analysis is a key issue for maintenance and failure assessments, thus representing an alternative mathematical tool for condition monitoring.

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Emerald

Tập 24 Số 2

154-162

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