Vibration-based Structural Health Monitoring (SHM) is method used to assess the condition of a structure by analysing its vibration response. Changes in the vibration characteristics such as natural frequencies, damping ratios, and mode shapes can indicate changes on structural behaviour, including damage or deterioration.
Vibration-based SHM relies on measuring and analysing structural behaviour over time.
The process typically involves:
These changes can reveal modifications in structural stiffness, mass, or damping.
Vibration-based monitoring is widely used because it:
Vibration-based SHM is closely related to Operational Modal Analysis (OMA).
OMA is used to extract modal parameters from vibration measurements, which can then be monitored over time to detect structural changes.
Vibration-based Structural Health Monitoring relies on advanced modal analysis techniques.
These techniques are implemented in software such as ARTeMIS SHM, which enables continuous monitoring and automated detection of structural changes based on vibration data.
Typical applications include:
