Overview
This two day course will introduce the delegates to Operational Modal Analysis, especially to systems with harmonic components, such as rotating machinery. This will be achieved by combining theory and laboratory exercises. Numerous case studies from the Marine and Energy business will be presented.
Course content
| Day 1 |
|---|
| Differences and similarities between operational modal analysis and experimental modal analysis |
| Introduction to frequency domain decomposition (FDD) techniques |
| Introduction to stochastic subspace identification (SSI) techniques |
| How to apply the co-variance driven SSI technique to industrial problems |
| Experiments: comparing FDD, SSI and EMA |
| Day 2 |
|---|
| Influences of harmonic components |
| Experimental and operational modal analysis of rotating machinery |
| Experiments: influence of harmonic components, rotating machinery |
| Complex and non-linear systems |
Case studies
Ships
-
Panel cracking
-
Resonance of the accommodation block
Tall structures
-
Power station chimney – long term monitoring and verification of damper performance
-
Large ship unloader
Bridges
-
Natural frequency of cable stays
-
Variation of natural frequency of deck with temperature
Machinery
-
Diesel engines – on a ship
-
Generators – offshore platform
-
Nuclear power generator
-
FE model updating
-
Dynamic absorber application
-
Bow thruster
Suitable for
Rotating Equipment Engineers, Noise and Vibration Engineers, Project Managers and anyone who would like to learn about Operational Modal Analysis.