Tensometric measurements consist of measurements of the electrical resistance variations undergone in a strain gauge grid linked to the equipment analyzer and subjected to strain.
It is an opportunity to measure strain and make stress analysis of each kind of material in actual operating condition, including hostile environments.
Vibrations of rotating machineries, that is torsional vibrations, derive from the instantaneous angular velocity variation of the rotating parts. The phenomenon is present on reciprocating equipment, e.g. diesel engines, pumps, compressors, air/water propellers and turbines.
Torsional vibration analysis serves as an essential diagnostic instrument to identify abnormalities during a machine operation that may lead to unexpected damages of rotating equipment. Stresses caused by torsional vibrations are added to stress deriving from normal rotational motion.