Title:
ACTIVE DAMPING METHOD
Document Type and Number:
Japanese Patent JP3823397
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an active damping method which eliminates disorder caused outside the damping band.
SOLUTION: A high-pass filter 41 which cuts off a detection signal y(t) over the entire range (ω≤ωn) of vibration frequencies where actuator-driven damping is effective and passes the detection signal at higher frequencies (ωn+1≤ω) than the above is used and applied for a detection signal which is detected before a specific time to extract a high-frequency signal component y1(t-T) which is extracted a specific time before, and the waveform of this high-frequency signal component is extrapolated up to a present time and the high-frequency signal component Y1(t) at the present time which is obtained by this extrapolation is subtracted from the detection signal y(t) to detect a low-frequency signal component which is effective to the actuator-driven damping and to drive an actuator according to the low-frequency signal.
Inventors:
Masahiko Utsumi
Application Number:
JP28693996A
Publication Date:
September 20, 2006
Filing Date:
October 29, 1996
Export Citation:
Assignee:
Ishikawajima Harima Heavy Industries Co., Ltd.
International Classes:
F16F15/02; G05D19/02; G05B13/02; (IPC1-7): G05D19/02; F16F15/02; G05B13/02
Domestic Patent References:
| JP5106682A | ||||
| JP6288433A |
Attorney, Agent or Firm:
Nobuo Kinutani
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