Patent ID: 6145381
Filing Date: 2000-11-14
Classification: F16F,G01H

Abstract:
An apparatus for attenuating periodic vibration in a rotating device, where the periodic vibration comprises a series of time-variable coefficients and functions, said apparatus comprising means for detecting the periodic vibration in the rotating device;means responsive to said means for detecting for extracting one or more of the time-variable coefficients and functions from the periodic vibration;an artificial neural network having input neurons, output neurons and a hidden neuron, the connections from the input neurons to the hidden neuron constituting a weight layer having weights, said input neurons being connected to said means for extracting;means providing a learning algorithm and responsive to said means for extracting for adapting in real time to adjust the weights in said artificial neural network;means responsive to the weights in said artificial neural network for generating a cancellation signal; andmeans responsive to said cancellation signal for imparting a force to the rotating device.