Adaptive synchronous vibration suppression apparatus

Claim 2

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.

Claim 3

The adaptive forced balancing system of claim 1 in which said means for detecting includes means for extracting the synchronous component of the magnetic bearing control signal; 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.

Claim 4

The adaptive forced balancing system of claim 1 in which said means for generating a position command includes means responsive to said two 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.

Claim 5

The adaptive forced balancing system of claim 3 in which said means for computing includes a channel for developing each of said Fourier coefficients, and switching means for selectively enabling one of said channels and disabling the other as a function of the value of the energy representative of the mass-unbalance of the rotor.

Claim 6

The adaptive forced balancing system of claim 4 in which said means for switching includes means for disabling the enabled channel and enabling the disabled channel when said energy value is increasing, concave upward, and a local extremum has been reached.

Claim 7

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.

Claim 8

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.

Claim 9

The adaptive forced balancing system of claim 6 in which said means for detecting includes means for extracting the synchronous component of the suspension control signal; 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.

Claim 10

The adaptive forced balancing system of claim 6 in which said means for generating a position command includes means responsive to said two 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.

Claim 11

The adaptive forced balancing system of claim 8 in which said means for computing includes a channel for developing each of said Fourier coefficients, and switching means for selectively enabling one of said channels and disabling the other as a function of the value of the energy representative of the mass-unbalance of the rotor.

Claim 12

The adaptive forced balancing system of claim 9 in which said means for switching includes means for disabling the enabled channel and enabling the disabled channel when said energy value is increasing, concave upward, and a local extremum has been reached.

Claim 13

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.

Claim 14

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.

Claim 15

The adaptive synchronous vibration suppression apparatus of claim 11 in which said means for generating includes means for computing from the energy representative of the synchronous component of the vibration two Fourier coefficients of the command; means, responsive to said Fourier coefficients, for calculating the quadrature components of the command; and means, responsive to said means for calculating, for summing the quadrature components to obtain the command.

Claim 16

The adaptive synchronous vibration suppression apparatus of claim 12 in which said means for computing includes a channel for developing each of said Fourier coefficients, and switching means for selectively enabling one of said channels and disabling the other as a function of the value of the energy representative of the synchronous component of the vibration.

Claim 17

The adaptive synchronous vibration suppression apparatus of claim 13 in which said means for switching includes means for disabling the enabled channel and enabling the disabled channel when said energy value is increasing, concave upward, and a local extremum has been reached.

Claim 18

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.

Claim 19

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.

Claim 20

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.

Claim 21

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.