Damage Identification Methods for Support Position of Tower Structure Based on Information Extension

This paper provides one damage identification method for support position of tower structure based on dynamic response information extension. On the basis of obtaining dynamic response information of tower structure under environment excitation, wavelet transform is adopted for structure damage location identification. When there is damage in the support of tower structure, dynamic response information of upper structure cannot show the space domain information of the support position. Therefore, through effective extension of dynamic response information, at the same time of eliminating the Gibbs Phenomenon on the boundary of initial dynamic response information interval, damage identification of support position is achieved. Analysis result of examples shows that this method is very effective and reliable for damage identification of support position of tower structure.