Method for monitoring the torsion of a rotating shaft on a turbomachine of an aircraft

摘要

Method for monitoring the torsion of a rotating shaft on r a turbomachine of an aircraft A method of monitoring the torsion of a rotary shaft on a turbomachine of an aircraft from the measurements of at least three sensors distributed along the rotary shaft to divide the shaft into at least two shaft segments , the method comprising: - a step, for each sensor, of measuring (100) a parameter depending on the rotation of the shaft, - a step, for each couple of sensors that can be produced, of calculation (110) of a parameter linked to the torsion of the shaft, - a step of comparison (120) of the various parameters linked to the torsion of the shaft calculated at references, - a step of detection (130) of a damage on a segment d 'tree at the end of the comparison step, and- a step of indicating the location (140) of the damage on the shaft from the shaft segment for which damage has been detected. Figure for the abstract: Fig. 1.