Adaptive synchronous vibration suppression apparatus
AssigneeThe Charles Stark Draper Laboratories, Inc.
InventorStuart R. Beale
Life of this patent
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Abstract
An adaptive synchronous vibration suppression apparatus for suppressing vibrations in a dynamic system subject to synchronous disturbance detects the energy representative of the synchronous component of the vibration induced by the synchronous disturbance; generates the Fourier coefficients, amplitude and phase components command; and applies the command to operate an actuator to apply a force to the system to suppress the detected vibration.
Claims16
An adaptive forced balancing system for a rotor magnetic bearing suspension apparatus having a magnetic bearing control signal, comprising:
- means, responsive to the magnetic bearing control signal, for detecting the energy representative of the mass-unbalance of the rotor;
- means, responsive to said means for detecting, for computing two Fourier coefficients of the energy representative of the mass-unbalance of the rotor;
- and
- means responsive to said means for computing said two Fourier coefficients, for generating a position command to the rotor magnetic bearing suspension apparatus to define the orbit of the geometric center of the rotor to effect rotation of the rotor about its center of mass.
An adaptive forced balancing system for a rotor suspension apparatus having a suspension control signal, comprising:
- means, responsive to the suspension control signal, for detecting the energy representative of the mass-unbalance of the rotor;
- means, responsive to said means for detecting, for computing two Fourier coefficients of the energy representative of the mass-unbalance of the rotor;
- and
- means, responsive to said means for computing said two Fourier coefficients, for generating a position command to the rotor suspension apparatus to define the orbit of the geometric center of the rotor to effect rotation of the rotor about its center of mass.
An adaptive synchronous vibration suppression apparatus for suppressing vibrations in a dynamic system subject to synchronous disturbance, comprising:
- means for detecting the energy representative of the synchronous component of the vibration induced by a synchronous disturbance including
- means for extracting the synchronous component of the vibration,
- means, responsive to said synchronous component, for producing the absolute value of said synchronous component, and
- means, responsive to said absolute value of said synchronous component, for defining the average of said absolute value of said synchronous component;
- means, responsive to said means for detecting, for generating a Fourier coefficients, amplitude and phase command based on said average of said absolute value of said synchronous component;
- and
- actuator means, responsive to said command, for applying a force to the system to suppress the detected said vibration.
An adaptive forced balancing system for a rotor magnetic bearing suspension apparatus having a magnetic bearing control signal, comprising:
- means, responsive to the magnetic bearing control signal, for detecting the energy representative of the mass-unbalance of the rotor;
- and
- means, responsive to said means for detecting, for generating a position command to the rotor magnetic bearing suspension apparatus to define the orbit of the geometric center of the rotor to effect rotation of the rotor about its center of mass, including means for computing, from the energy representative of the mass-unbalance of the rotor, the Fourier coefficients of the position command, means, responsive to said Fourier coefficients, for calculating the quadrature components of the position command, and means, responsive to said Fourier coefficients, for calculating the quadrature components of the position command, and means, responsive to said means for calculating, for summing the quadrature components to obtain the position command.
An adaptive forced balancing system for a rotor suspension apparatus having a suspension control signal, comprising:
- means, responsive to the suspension control signal, for detecting the energy representative of the mass-unbalance of the rotor;
- and
- means, response to said means for detecting, for generating a position command to the rotor suspension apparatus to define the orbit of the geometric center of the rotor to effect rotation of the rotor about its center of mass, including means for computing, from the energy representative of the mass-unbalance of the rotor, the Fourier coefficients of the position command, means responsive to said Fourier coefficients, for calculating the quadrature components of the position commands, and means, responsive to said means for calculating, for summing the quadrature components to obtain the position command.
Dependencies are inferred from the claim text.