Method and System for Extracting a Model of Disturbances Induced by Rotating Mechanisms
OwnerCarl Allen Blaurockinventor
Life of this patent
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Abstract
The subject invention is a method and system for extracting a model of disturbances induced by rotating mechanisms. Such disturbances can prevent precision structures such as telescopes from meeting their design requirements for dynamic stability. The invention extracts a model of the disturbances from available data, that can be used to predict, identify, and eliminate problematic system performance in the presence of spinning mechanisms.
Claims6
a system for extracting a mathematical model of disturbances induced by a spinning mechanism, comprising models of the spin induced disturbances, and the spin rate dependent dynamics of the mechanism,
claim of 1, where the spin induced disturbance model consists of a summation of multiple harmonics composed of arbitrary tonal functions of wheel speed, and a broadband noise model that consists of an arbitrary speed and frequency dependent shaping function,
claim of 1, where the mechanism structural model consists of an arbitrary matrix Equation of Motion that incorporates a dependence on rotation speed,
claim of 1, where the harmonics are automatically identified by collapsing the order analysis data to a scalar function of rotation speed, and then identifying the local maxima
claim of 1, where a least squares optimization routine is used to tune the models to the data
claim of 1, where the gradients of the noise and structural models can be used to improve tuning speed and accuracy
Dependencies are inferred from the claim text.