METHOD FOR DETERMINING A RUNNING CONDITION BY SPATIAL HARMONIC ANALYSIS OF SPEED

摘要

The invention concerns a method for determining the running condition of a member rotating on a surface, said method comprising the initial process which consists in performing a spatial frequency analysis of the rotational speed of the member so as to identify at least one frequency window not including a harmonic of the revolution of the member wherein a law determining the running condition is established, and an iterative process for determining the running condition comprising steps which consists in: measuring the rotational speed V of said member; spatially sampling said speed with a constant spatial sampling period Δd; analyzing the sampled signal in the frequency window identified so as to determine the running condition on the basis of the established law.