Vibration Monitoring in Ships
Being able to properly monitor machine health allows for better maintenance scheduling to reduce unnecessary interventions in the machines,prevent accidents and increase the resting time of the vessel’s crew
This use case was developed under AI4EU, an European Union Artificial Intelligence project, which aims to bring together the AI community and facilitate knowledge transfer from research to business application. It provides a platform for experiments that promote the sharing and deployment of AI models.
Given the large number of similar assets and the fact that they remain constant across all ships, the first approach was to find the assets with most atypical behavior based on vibration data. This is done through our feature Blacksheep Detection, which identifies machines that behave differently from the rest of the population. It then displays a list of the assets according to how atypical each of them is likely to become.
As the measurements were recorded with a high resolution, it was possible to split the 1-second-long measurements into smaller signals defined by the number of rotations on the asset. Then, all the signals from all measurement points and axis were concatenated to represent a single source.
Then, each individual asset was subjected to Automatic Mode Identification, which automatically identifies all the operational modes in a machine and selects the most relevant time stamps in each mode for analysis. As all measurement points and axis were transformed into a single source, Mode Identification enables the expert to identify which measurement points and axis may be worth inspecting first.