Vibration-based structural health monitoring

PhD defence, Friday 17 March 2017. Jannick Balleby Hansen.

2017.03.17 | Steffi Hjerrild Iversen

Jannick Balleby Hansen

During his studies, Jannick researched localization and quantification of structural degradation using the vibrational signatures of large mechanical or civil engineering structures. It is commonly known that damage, e.g. holes or cracks in a structure, will have an impact on the global dynamic properties, i.e. the modal parameters. Hence, an observed shift in the modal parameters indicates changes in the inherent properties of the monitored structure. Jannick studied how to locate and quantify structural perturbations by employing merged experimentally obtained quantities and a parametric model in scenario-based framework. 

The PhD thesis introduces novel methods to localize and quantify structural perturbations, which have been tested on laboratory as well as full-scale test cases with respect to perturbations of mass change type.

The PhD degree was completed at the Department of Engineering (ENG), Science and Technology, Aarhus University.

This résumé was prepared by the PhD student.

 Friday 17 March 2017 at 13.00
Place: Building 3210, room 03.040, Navitas, Aarhus University, Inge Lehmanns Gade 10, 8000 Aarhus C
Title of dissertation:
 Scenario-based Structural Damage Localization and Quantification Using Operational Modal Analysis
Contact information:
 Jannick B. Hansen, e-mail:, tel.: +45 4189 3196
Members of the assessment committee:
Professor Guido De Roeck, Department of Civil Engineering, KU Leuven, Belgium
PhD Dimitri Tcherniak, Brüel & Kjær, Denmark
Professor (Docent) Kenny Kataoka Sørensen (chair), Department of Engineering, Aarhus University
Main supervisor:
Professor Poul Henning Kirkegaard, Department of Engineering, Aarhus University
Professor Rune Brincker, Department of Civil Engineering, Technical University of Denmark
Language: The PhD dissertation will be defended in English

The defence is public.
The dissertation is available for reading at the Graduate School of Science and Technology/GSST, Ny Munkegade 120, building 1520, rooms 128-134, 8000 Aarhus C.

PhD defence
Comments on content: 
Revised 23.02.2018