Method for determining a running condition by spatial harmonic analysis of speed
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United States of America Patent
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Jul 19, 2011
Grant Date -
Feb 7, 2008
app pub date -
Jul 4, 2005
filing date -
Jul 6, 2004
priority date (Note) -
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Abstract
The invention concerns a method for determining the running condition of a member rotating on a surface. The method includes an initial process of performing a spatial frequency analysis of the rotational speed of the member 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 thereafter, an iterative process for determining the running condition including measuring the rotational speed V of the member; spatially sampling the speed with a constant spatial sampling period Δd; and analyzing the sampled signal in the frequency window identified so as to determine the running condition on the basis of the established law.
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