METHOD AND DEVICE FOR SEARCHING FOR A FAULT LIKELY TO AFFECT A MECHANICAL ROTATING POWER TRANSMISSION DEVICE

摘要

Method and device for searching for a fault likely to affect a rotating mechanical power transmission device The method according to the invention comprises: a step of obtaining (E10) a signal that can be modeled by a product of a high frequency signal s1 and a low frequency signal s2, generated by the rotating mechanical power transmission device and acquired by a sensor; A step of determining (E20) estimates of the signals s1 and s2 minimizing a difference between all or part of the signal s and a product of these estimates; A step of analyzing (E30) the estimates of the signals s1 and s2 in order to detect the presence of a fault affecting the rotating mechanical power transmission device; if a fault is detected at the end of the analysis step (E40), a step of locating (E50) said fault from at least one of the estimates of the signals s1 and s2.