Method and device for reducing the vibrations of rotating machin

Details Method and device for reducing the vibrations of rotating machin Method and device for reducing the vibrations of rotating machin

1985-03-20

1986-12-02

Shoop, Jr., William M.

Electricity: motive power systems

Automatic and/or with time-delay means

Sound, supersonic vibration or mechanical vibration

318605, 318629, 318661, 310 905, G05B 501

Patent

active

046267549

ABSTRACT:
A device for reducing the vibrations of a rotating machine equipped with an active magnetic suspension comprises at least two vibration detectors located on the machine frame for detecting disturbances applied to the frame, and at least an additional selection feedback loop with narrow band and high gain whose central frequency is synchronized with a reference frequency and which receives signals delivered by the vibration detectors. The additional selective feedback loop comprises means for integrating the signals delivered by the vibration detectors and filtering means for eliminating the transient signals whose frequency is not linked to the reference frequency.

REFERENCES:
patent: 3156915 (1964-11-01), Lang et al.
patent: 3373326 (1968-03-01), Farrand
patent: 3787100 (1974-01-01), Habermann et al.
patent: 4121143 (1978-10-01), Habermann et al.
patent: 4128795 (1978-12-01), Habermann
patent: 4244629 (1981-01-01), Habermann
patent: 4498037 (1985-02-01), Razavi

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