What is the purpose of vibration accelerometers in gas turbines?

Vibration accelerometers in gas turbines serve a critical function in monitoring the health and performance of the turbine's rotating components. Specifically, they are used to measure vibrations in journal or tilt pad bearings. By assessing the vibration levels, operators can diagnose potential issues such as misalignment, imbalance, or wear in the bearings.

The ability to monitor these vibrations is essential for maintaining the reliability and safety of the turbine, as excessive vibrations can lead to component failures and operational inefficiencies. Regular vibration analysis helps in predicting maintenance needs and preventing unplanned downtime, which can be costly.

This focus on bearing health through vibration monitoring is crucial because journal and tilt pad bearings support the rotor and maintain its position within the turbine. Effective monitoring ensures that any abnormal vibrations, which could indicate a problem, are detected early, allowing for preventative measures to be taken before more serious issues arise.