| 摘要 |
The invention relates to a method for measuring the dynamic properties of a mechanical structure, the method using an accelerometer that transmits acceleration data, in the form of a measurement signal transmitted through a network, to a computing device at regular intervals. The method for measuring dynamic properties preferably includes: a step (50) of the computing device receiving a measurement signal transmitted by the accelerometer; a step (130) of processing the measurement signal by filtering the measurement signal around a frequency of interest; a step (240) of calculating the difference, referred to as the actual transient phase profile, between the phase of the filtered, pseudo-harmonic measurement signal and the phase of a virtual purely harmonic signal that has the same frequency as the dominant frequency of the filtered measurement signal; and a step (320) of identifying the actual transient phase profile as a reference transient phase profile extracted from a database, the identification being carried out according to a predetermined distance criterion.
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