The document discusses an OWI-Lab monitoring infrastructure that focuses on continuous monitoring of offshore wind turbines. It describes 5 cases of monitoring key components: 1) vibration of the transition piece, tower, and nacelle, 2) dynamic behavior of the tower and foundation, 3) corrosion of the foundation structure, 4) loads and displacements of grout connections, and 5) dynamic behavior of the drive train. The goal is to use monitoring data and advanced modeling to improve both design, by reducing costs, and operations and maintenance strategies, by reducing expenses.

1. OWI-Lab Monitoring Infrastructure
Remote measurement
& monitoring systems
(SHM & CMS)
Continuous monitoring of tower, foundation and drive train
R&D Infrastructure - Hardware
Data-pool
Modelling Software / Monitor Solutions
Improved Design (reducing CAPEX) /
Improved O&M Strategies (reducing OPEX)

2. CASE 1: CONTINUOUS MONITORING OF
VIBRATION LEVELS ON TRANSITION PIECE,
TOWER AND NACELLE
Condition Monitoring according VDI guidelines

3. CASE 2: CONTINUOUS MONITORING OF
THE DYNAMIC BEHAVIOUR OF THE
TOWER AND FOUNDATION STRUCTURE
O&M
Scour monitoring
DESIGN
Advanced post-processing techniques
for continuous dynamic monitoring
of the structure (damping, frequency,…)
Automated Operationa Modal Analysisl Estimating soil stifness and aerodynamic damping

4. CASE 3: CONTINUOUS CORROSION
MONITORING OF THE FOUNDATION
STRUCTURE
Single day installation
Onshore data warehouse
Regular reports
Advanced hardware and processing
techniques for continuous monitoring:
-Corrosion rate
-Oxygen levels (dissolved / gas)
- Potentials
DESIGN + O&M

5. CASE 4: CONTINUOUS MONITORING
OF LOADS AND DISPLACEMENTS FOR
EVALUATING THE GROUT CONNECTION
New Measurement Concepts
using optical fibers
Estimating remaining lifetime
Advanced post-processing techniques
for continuous load ans strain monitoring
within and around the grout-connection
DESIGN + O&M
Removing operating and
ambient influences

6. CASE 5: CONTINUOUS MONITORING OF
DYNAMIC BEHAVIOUR OF THE DRIVE TRAIN
Optimal design and maintenance insure
the well functioning of a wind turbine drive
train including the gearbox
Both simulation models and optimized
measurement techniques are needed to
achieve both goals
IMPROVED DESIGN + O&M
Combining gearbox surface vibration data with internal flexible
multibody models to retrieve information on the relevant parameters
for the remaining life assessment of wind turbine gearboxes