Anonymised vibration, lubricant and availability dataset for multimodal CBM of azimuth thruster tugboats

This dataset supports the manuscript “Spectral Fault Anticipation in Azimuth Thrusters: A Vibration-Driven Framework with Oil Cross-Validation”, submitted to Reliability Engineering & System Safety. The dataset includes anonymised processed vibration, lubricant-condition and operational-availability records used to support the Spectral Severity Score (SSS), Oil Degradation Index (ODI), Lead-Time Index (LTI), diagnostic matrix and economic analysis reported in the manuscript. Vessel names, operator identity and port-specific information were removed or replaced by propulsion/model codes to preserve confidentiality. The package also includes final figures, summary tables, Python scripts for figure/statistical reproducibility, metadata templates and citation information.