Dynamic machine measurements

By precisely quantifying the movement of machinery such as propulsion systems in different loading conditions, engine outputs and manoeuvring scenarios, we can optimize its position to ensure proper alignment in all circumstances.

SHAFT ORBIT MEASUREMENTS

By measuring the lateral movement of a rotating shaft we can find out the dynamic behaviour. With this information we can quantify whirling, identify why stern tube seals leak and check if the alignment targets in static condition are correct.

SHAFT POWER MEASUREMENTS

A shaft line transferring energy by rotation is exposed to torsional moment. To avoid fatigue damage it is necessary to keep a sufficiently low torsional moment in the critical parts of the shaft as well. This means that the shafting arrangement must be examined for torsional vibration, whirling and bending stresses during the development stage. The weakest part of the shaft line is found in coupling flanges and bolt connection. By using strain gauges, bending, axial and torsional forces and shear stresses can be measured under load. In combination with shaft speed and torsional stresses, the transferred power though the shaft can then be calculated.

SHAFT POWER AND TORSIONAL VIBRATION MEASUREMENTS 

By measuring torsional shaft stresses, we can determine shaft power to verify the engine‚Äôs rated output. Measuring torsional vibration is also crucial to understanding problems like coupling failures and shaft fractures