Spring devices – Fluid – Expansible-contractible chamber device
Patent
1996-10-22
1999-03-30
Graham, Matthew C.
Spring devices
Fluid
Expansible-contractible chamber device
188379, 267 6428, 26714014, F16F 904
Patent
active
058878580
ABSTRACT:
The inventively advanced mount accommodates a conventional mount (such as an air mount) so as to include, at the mount's foundation-securing plate, at least one motion sensor and at least one vibratory actuator. Each sensor is correlated with an actuator. For each sensor-actuator pair, the electrical feedback loop includes generation by the sensor of a signal resulting from the local vibration of the foundation-securing plate, generation by a processor/controller of a signal derived from the sensor's signal, and exertion upon the foundation-securing plate by the sensor's paired actuator of a vibratory force commanded by the processor/controller's signal. Many preferred inventive embodiments collocate each sensor with its paired actuator and implement a conventional vibration suppression algorithm involving collocated velocity feedback. The inventive "passive-active" mount uniquely brings to bear, sequentially and complementarily, passive vibration control followed by active vibration control.
REFERENCES:
patent: 3270221 (1966-08-01), Shaffer
patent: 3836098 (1974-09-01), Miyashita
patent: 4083433 (1978-04-01), Geohegan et al.
patent: 4470121 (1984-09-01), Ebert
patent: 4481967 (1984-11-01), Frick
patent: 4483425 (1984-11-01), Newman
patent: 4492246 (1985-01-01), Prescott et al.
patent: 4665938 (1987-05-01), Brown et al.
patent: 4712173 (1987-12-01), Ditzgerald et al.
patent: 4749891 (1988-06-01), Sheng
patent: 4783659 (1988-11-01), Frick
patent: 4822009 (1989-04-01), Hirchenhain et al.
patent: 4869477 (1989-09-01), Hoying et al.
patent: 4871142 (1989-10-01), Demey, II
patent: 4887788 (1989-12-01), Fischer et al.
patent: 4922159 (1990-05-01), Phillips et al.
patent: 5131611 (1992-07-01), Vollaro
patent: 5181452 (1993-01-01), Immega
patent: 5184037 (1993-02-01), Kobayashi et al.
patent: 5197328 (1993-03-01), Fritzgerald
patent: 5209326 (1993-05-01), Harper
patent: 5333819 (1994-08-01), Stetson, Jr.
patent: 5431015 (1995-07-01), Hein et al.
patent: 5431182 (1995-07-01), Brown
patent: 5456047 (1995-10-01), Dorka
patent: 5510660 (1996-04-01), Flatau et al.
Jen-Houne Hannsen Su, "Robust Passive-Active Mounts for Machinery and Equent," Proceedings of DETC '97, 1997 ASME Design Engineering Technical Conferences, Sep. 14-17, 1997, Sacramento, CA (nine pages).
Su, J. Hannsen et al, "Mechanisms of Localized Vibration Control in Complex Structures," Journal of Vibration and Acoustics, Jan. 96, V. 118, pp. 135-139.
Graham Matthew C.
Kaiser Howard
The United States of America as represented by the Secretary of
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