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Events at Department of Energy Technology

Industrial/PhD Course: Vibration-based structural health monitoring - Esbjerg

Time

05.10.2020 kl. 08.15 - 09.10.2020 kl. 16.15

Description

Organizers

Martin Dalgaard Ulriksen and Lars Damkilde (AAU Build)

Lecturers

Martin Dalgaard Ulriksen (MDU) and Lars Damkilde (LD)

ECTS: 5

Description

The aim of this course is to give the participants an insight into the use of vibration measurements to assess the integrity of structural systems and components. This procedure is referred to as vibration-based structural health monitoring (SHM), which is of interest within several engineering disciplines; including energy, civil, mechanical, and aerospace. Here, SHM can be used as a key component in optimization of operation and maintenance procedures.

In the course, we will address the following topics:

  • Structural damages, their appearance in engineering structures, and potential consequences
  • Theoretical, numerical, and experimental deterministic and stochastic vibration analysis
  • Deciding on the spatial distribution of sensors for capturing vibration signatures
  • Signal processing of vibration signatures for discrimination between damage-induced anomalies and environmental and/or operational variability
  • Characterization of structural damages using signal-processed vibration signatures
  • Industrial perspectives and real-life application examples

The course consists of lectures, solving theoretical exercises, and conducting experimental studies to increase the physical understanding of the theory. The target audience is PhD students within energy, civil, and mechanical engineering or similar, but young researchers and professionals from the industry with an interest in the topics of the course are also welcome.                         

An assignment will be given as homework. Satisfactory answers to the homework are a prerequisite for passing the course.

Day 1: Introduction, vibration analysis I, and exercises. Lecturers: MDU & LD. Duration: 8 hours.
From 8:15 to 10:00, an introduction to the course and the topic will be given.
From 10:15 to 12:00, a lecture on basic vibration analysis will be given.
From 12:30 to 14:15, the students will conduct experiments in the laboratory.
From 14:30 to 16:15, the students will solve exercises.

Day 2: Vibration analysis II, system identification, and exercises. Lecturers: MDU & LD. Duration: 8 hours.
From 8:15 to 10:00, a lecture on advanced vibration analysis will be given.
From 10:15 to 12:00, a lecture on system identification will be given.
From 12:30 to 14:15, the students will conduct experiments in the laboratory.
From 14:30 to 16:15, the students will solve exercises.

Day 3: FEM, damage detection I, and exercises. Lecturers: MDU & LD. Duration: 8 hours.
From 8:15 to 10:00, a lecture on the finite element method (FEM) will be given.
From 10:15 to 12:00, a lecture on basic damage detection will be given.
From 12:30 to 14:15, the students will conduct experiments in the laboratory.
From 14:30 to 16:15, the students will solve exercises.

Day 4: Damage detection II, model updating, and exercises. Lecturer: MDU. Duration: 8 hours.
From 8:15 to 10:00, a lecture on advanced damage detection will be given.
From 10:15 to 12:00, a lecture on model updating will be given.
From 12:30 to 14:15, the students will conduct experiments in the laboratory.
From 14:30 to 16:15, the students will solve exercises.

Day 5: Damage diagnosis, assignment information, and closing. Lecturers: MDU & LD. Duration: 8 hours.
From 8:15 to 10:00, a lecture on basic damage diagnosis will be given.
From 10:15 to 12:00, a lecture on advanced damage diagnosis will be given.
From 12:30 to 14:15, information on the assignment will be provided.
From 14:30 to 16:15, the course will be evaluated and closed.

Prerequisites

Master degree in Engineering or similar
Basic knowledge on calculus and linear algebra, as obtained through engineering studies
Basic knowledge on MATLAB or any other programming language
Basic knowledge on structural mechanics and dynamics.

Form of evaluation

Written in the form of an assignment.

Registration

https://phd.moodle.aau.dk

Price

6000 DKK for PhD students outside of Denmark and 8000 DKK for the Industry.

Host

Department of Energy Technology

Address

Aalborg University, Niels Bohrs Vej, Esbjerg. Room number pending.