14 LMM V I S I O N ISSUE 21 | Q2 2025 ARTICLE As part of our ongoing commitment to modernizing maintenance practices, we have successfully implemented a vibrationbased condition monitoring system across our LNG fleet. Developed in collaboration with HAT Analytics Solutions Ltd., this initiative is now fully integrated into our Planned Maintenance System, enabling smarter, data-driven decision-making and proactive asset management. Vibration monitoring plays a critical role in the early detection of mechanical issues—well before they escalate into costly failures. In the maritime industry, equipment breakdowns are a leading cause of delays. Studies indicate that 90% of failures are linked to human error, with 75% stemming from operational or maintenance shortcomings. Nearly half of all machinery-related incidents result in vessel immobilization or towing. Vibration analysis helps identify early signs of wear, misalignment, and imbalance, significantly reducing these risks and enhancing equipment reliability. To ensure a structured rollout, we introduced three dedicated PMS jobs, each targeting specific shipboard equipment. These jobs are scheduled quarterly, with a 25-day window for completion. Each job includes four key steps: ●● Data Collection – Vibration data is gathered from 75 rotating equipment units, including pumps, motors, purifiers, compressors, fans, blowers, and alternators. ●● Reporting – A detailed vibration report is submitted as part of the job documentation before final submission to the head office. ●● Escalation – Any abnormal findings trigger an unscheduled PMS job. Corrective actions, as indicated on the tablet, must be completed, followed by a repeat measurement to confirm normal operation. ●● Traceability – All related work orders are logged in the PMS, ensuring full traceability and transparency throughout the maintenance process. The HAT Analytics hardware ensures reliable data collection even in challenging environments, including hazardous gas zones. The system employs ATEX-certified wireless sensors, safe for use in explosive atmospheres—making them ideal for LNG carriers. The second-generation Digital Health Monitoring handheld system, Ad|Vi|Se, features an embedPredictive Precision: Vibration Monitoring Across Our LNG Fleet Theodoros Petimezas Technical Superintendent
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