Structural Health Monitoring (SHM) uses different methods to assess the condition of structures based on measured data. These methods vary depending on the type of structure, the available sensors, and the monitoring objectives.
SHM methods are typically based on measuring physical responses and analysing changes over time.
Vibration-based SHM uses measurements of structural vibrations to identify changes in dynamic properties such as natural frequencies, damping ratios, and mode shapes.
This method is widely used because it can detect global changes in structural behaviour and does not require direct access to damage locations.
Strain-based SHM measures deformation in structural elements using sensors such as strain gauges.
It is typically used to:
Displacement-based methods measure how much a structure moves under load.
These methods are used to:
Traditional inspection methods include visual inspection and manual assessment.
These approaches are often used together with sensor-based monitoring to provide additional context.
Vibration-based Structural Health Monitoring is closely related to modal analysis techniques such as Operational Modal Analysis (OMA).
Changes in modal parameters such as natural frequencies, damping ratios, and mode shapes can indicate changes in structural condition.
Vibration-based Structural Health Monitoring relies on advanced modal analysis techniques to identify changes in structural behaviour.
These techniques are implemented in software such as ARTeMIS Modal Pro and ARTeMIS SHM, which are designed for modal parameter estimation and vibration-based structural monitoring.
ARTeMIS SHM extends modal analysis capabilities to continuous monitoring applications, enabling automated tracking of structural changes over time.
The choice of method depends on:
In many cases, multiple methods are combined to obtain reliable results.
