Active piezo-electric vibration isolation and directional bracke

Details Active piezo-electric vibration isolation and directional bracke Active piezo-electric vibration isolation and directional bracke

1995-05-15

1997-07-08

Friedman, Carl D.

Supports

With condition responsive control means

248562, 248566, 248638, A01K 9710

Patent

active

056452608

ABSTRACT:
Piezoelectric actuators bonded on S-shaped brackets extend between a support and a payload. The brackets can be used for vibration isolation by attenuating resonant vibrations under computer dynamic control relying on predetermined dynamic resonant characteristics and H-Infinity control methods. The brackets can also be used for platform directional pointing under computer control.

REFERENCES:
patent: 2941579 (1960-06-01), Barker
patent: 4638982 (1987-01-01), Misher et al.
patent: 4645169 (1987-02-01), Mischer
patent: 4735296 (1988-04-01), Pinson
patent: 4793583 (1988-12-01), Bergacker et al.
patent: 4849668 (1989-07-01), Crawley et al.
patent: 4883248 (1989-11-01), Uchino et al.
patent: 4913482 (1990-04-01), Hanai et al.
patent: 5022272 (1991-06-01), Bronowicki et al.
patent: 5176355 (1993-01-01), Carter
patent: 5346170 (1994-09-01), Schmidt
Falangas, E. T., Dworak, J. A., Koshigoe, S., "Methods For Controlling Plate Vibrations Using PZT Actuators".
AIAA Guidance Navigation and Control Conference, Aug. 1993 Monterey Cal.
Dworak, J.A., Falangas, E. T., Koshigo, S. Tseng, G.T., "Vibro-Acoustic Control Using PZT Actuators".
3rd International Conference on Adaptive Structures, November 1992 San Diego, Cal.
Doyle, J.C., Glover, K., Khargonekar, P.O., Francis, B.A., "State-Space Solutions to Standard H2 and H1 Control Problems" IEEE Trans. Automatic Control, vol. 34, No. 8, Aug. 1989.
Dailey, R. L. "Lecture Notes for the Workshop on H Infinity and u Methods For Robust Control" May 21, 1990 American Control Conference, San Diego, Cal.
Safanov, M.G., Limebeer, D.J.N., Chiang, R. Y. "Simplifying the H-Infinity Theory Via Loop-Shifting, Matrix Pencil and Descriptor Concepts" Int. Journal Control, vol. 50, No. 6, pp. 2467-2488, Apr. 1989.
Moore, B.C., "Principal Component Analysis in Linear Systems: Controllability Observability and Model Reduction" IEEE Trans. on Automatic Control, vol. Ac-26, No. 1 Feb. 1981.
Koshigoe, S., Murdock, J.W. "A Unified Analysis of Both Active and Passive Damping for a Plate with Piexoelectric Transducers" Journal Acoustical Society of America, vol. 93, No. 1, pp. 346-355, Jan. 1993.
Seidel, R. C. "Transfer Function Parameter Estimation From Frequency Response Data--A Fortran Program" NASA, Washington, DC Sep., 1975.

Affiliated with

Also associated with

Rating

Active piezo-electric vibration isolation and directional bracke does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Active piezo-electric vibration isolation and directional bracke, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Active piezo-electric vibration isolation and directional bracke will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2405357