METHOD AND DEVICE FOR MONITORING THE DYNAMIC BEHAVIOUR OF A ROTATING SHAFT, IN PARTICULAR OF A GAS OR STEAM TURBINE

摘要

The invention relates to a method for monitoring the dynamic behaviour, in particular the oscillating behaviour, of a rotating shaft (25), the oscillation being detected by at least two sensors (10,12) at defined different spatial positions, the oscillation behaviour in at least one preferred direction being determined from the oscillation. The invention also relates to a device for monitoring oscillating behaviour in a rotary machine (40) with rotatable parts, having at least two sensors (10,12), a shaft (25) and a computing unit, characterised in that the at least two sensors (10,12) are positioned in a defined spatial position outside the shaft (25), detect measurement variables which characterise the oscillations and are connected to a computing unit (70) for the transfer of data. The invention also relates to a gas turbine and a steam turbine that use a method and a device as per the invention.