Electricity: motive power systems – Positional servo systems – With stabilizing features
Patent
1992-05-28
1994-11-29
Shoop, Jr., William M.
Electricity: motive power systems
Positional servo systems
With stabilizing features
318460, 318649, 310 51, G05B 501
Patent
active
053693485
ABSTRACT:
A device for attenuating the periodic vibrations of a mechanical structure adapted to obtain cancellation of periodic vibrations of rotating machines including at least one transducer, detecting original vibrations, delivering a detected signal, a detector of the periodicity of these vibrations delivering a synchronizing signal, and a control circuit and a transducer generating compensation vibrations which are applied to the mechanical structure. The control circuit includes a circuit for synchronous filtering of the detected signal, controlled by the synchronizing signal and delivering a filtered signal whose frequency spectrum contains only the instaneous fundamental frequency of the detected signal. A circuit for regulating the filtered signal delivers an antivibration-control signal applied to a generating transducer in order to minimize the amplitude of the detected signal.
REFERENCES:
patent: 4085825 (1978-04-01), Scarborough
patent: 4483425 (1984-11-01), Newman
patent: 4626754 (1986-12-01), Habermann et al.
patent: 4806835 (1989-02-01), Habermann
patent: 4929874 (1990-05-01), Mizuno et al.
patent: 4963804 (1990-10-01), Geiger
patent: 4999534 (1991-03-01), Andrianos
patent: 5005439 (1991-04-01), Jensen et al.
patent: 5008606 (1991-04-01), Koehler et al.
patent: 5012174 (1991-04-01), Adkins et al.
patent: 5032776 (1991-07-01), Garagnon
patent: 5049795 (1991-09-01), Moulds, III
patent: 5116029 (1992-05-01), Gennesseaux
patent: 5180958 (1993-01-01), Choshitani et al.
patent: 5202824 (1993-04-01), Chen
Patent Abstracts of Japan; vol. 11, No. 48 (M-561) (2495) 13 Feb. 1987 & SP-A61 211 548 (Tech Res & Dev Inst of Japan Def Agency) 19 Sep. 1986.
Patent Abstracts of Japan; vol. 8, No. 76 (M-288) (1513) 9 Apr. 1984 & JP-A-58 221 038 (Mitsubishi Denki) 22 Dec. 1983.
Hutchinson S.A.
Martin David
Shoop Jr. William M.
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