In this paper the influence of noise due to sensors disturbances on the results of a recently proposed damage detection and localization method is investigated with reference to a numerical model of a cable suspension bridge excited by wind. Noise is modeled as a white-noise and used to corrupt numerical simulations of measured responses. The relationship between the level of noise, the intensity of damage and the length of the recorded signals required to reduce the effect of noise is investigated with reference to various damage scenarios. The bridge model is derived from the ANSYS model of the Shimotsui-Seto Bridge in Japan (940m length of the main span). The wind excitation is simulated as a spatially correlated process acting in the horizontal direction, transversal to the deck. The bridge is assumed to be monitored by sensors located along the girder longitudinal axis, recording the absolute acceleration of the bridge deck in the transversal direction. © (2013) Trans Tech Publications.
|Titolo:||Interpolation damage detection method on a suspension bridge model: Influence of sensors disturbances|
|Data di pubblicazione:||2013|
|Appare nelle tipologie:||02.1 Contributo in Volume|
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