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A master's thesis from Aalborg University
Book cover


VIBRATION-BASED DAMAGE DETECTION: WITH FOCUS ON MITIGATING ENVIRONMENTAL AND OPERATIONAL VARIABILITIES THROUGH COINTEGRATION

Translated title

VIBRATION-BASED DAMAGE DETECTION

Term

4. term

Publication year

2020

Submitted on

Pages

56

Abstract

The objective of a vibration-based structural damage detection approach is to ascertain if damage is present or not in a structure based on measured vibration signals. In reality, structures are subject to changing environmental and operational conditions that affect the measured vibration signals, and these ambient variations can often mask subtle changes in the measured vibration signals caused by damage. The mitigation of the influence of these ambient variations is one of the main challenges for the implementation of a damage detection approach on structures in service. This thesis addresses that challenge through the application of cointegration. Its application is investigated through numerical and experimental studies.