A master thesis from Aalborg University
Structural Damage Localisation Through Shaped Inputs
Author(s)
Term
4. semester
Education
Publication year
2018
Submitted on
2018-06-07
Pages
76 pages
Abstract
The present thesis explores a newly proposed method, the Shaped Damage Locating Input Distribution (SDLID) scheme, for vibration-based damage identification localisation. The premise of the method is as follows: Given a structure is suffering from any type of damage, the steady-state vibration response, when applying the same load distribution, will be identical to that of the undamaged structure if the damage is rendered dormant. Based on this principle, the SDLID method operates by designing shaped inputs, which suppress certain steady-state vibration quantities. Damage is localised when the vibration signature from a damaged and undamaged structure, induced by the same shaped inputs, corresponds. Besides a numerical validation of the method, an examination regarding practical implementation is made by introducing experimental analyses of a six-story frame structure.
Keywords
Documents
Colophon: This page is part of the AAU Student Projects portal, which is run by Aalborg University. Here, you can find and download publicly available bachelor's theses and master's projects from across the university dating from 2008 onwards. Student projects from before 2008 are available in printed form at Aalborg University Library.
If you have any questions about AAU Student Projects or the research registration, dissemination and analysis at Aalborg University, please feel free to contact the VBN team. You can also find more information in the AAU Student Projects FAQs.