Active controller for the attenuation of mechanical vibrations

Details Active controller for the attenuation of mechanical vibrations Active controller for the attenuation of mechanical vibrations

1995-05-24

1997-01-14

Wood, Wynn E.

Static structures (e.g., buildings)

Means compensating earth-transmitted force

Dynamic force generator

52 1, E04B 198

Patent

active

055927912

ABSTRACT:
A plural orthogonal feed forward control system with an actuator system for installation on an upper floor or area of a building as an integral part of a building's structural supports to control seismic, wind, or wave disturbances to the structure or building. Control means include upstream and dual orthogonal downstream sensor arrays for determination of input and output error signals, plural orthogonal anti-feedback filters, and the plural adaptive weight updates to best determine the orthogonal components of the cancellation signal. The cancellation signal is acted on by the variable controlling force apparatus consisting of hydraulic or other actuators with stiff rods attached to the building structure and connected with a movable mass. The device works on orthogonal components of the disturbance, and is capable of attenuating simultaneously signals whose spectra contain multiple narrowband and/or combined narrowband and broadband character.

REFERENCES:
patent: 4429496 (1984-02-01), Masir
patent: 4473906 (1984-09-01), Warnaka et al.
patent: 4635892 (1987-01-01), Baker
patent: 4745553 (1988-05-01), Raven et al.
patent: 4766706 (1988-08-01), Caspe
patent: 4783937 (1988-11-01), Sato
patent: 4799339 (1989-01-01), Kobori et al.
patent: 4841685 (1989-06-01), Masri et al.
patent: 4922667 (1990-05-01), Kobori et al.
patent: 4956947 (1990-09-01), Middleton
patent: 5022201 (1991-06-01), Kobori et al.
patent: 5025599 (1991-06-01), Ishii et al.
patent: 5036633 (1991-08-01), Kobori et al.
patent: 5046290 (1991-09-01), Ishit et al.
patent: 5107634 (1992-04-01), Onoda et al.
patent: 5224168 (1993-06-01), Martinez et al.
patent: 5233797 (1993-08-01), Uno et al.
patent: 5239789 (1993-08-01), Uno et al.
patent: 5245807 (1993-09-01), Ishimaru et al.
patent: 5255764 (1993-10-01), Kurabayashi
patent: 5311709 (1994-05-01), Kobori et al.
patent: 5321923 (1994-06-01), Oda
patent: 5325437 (1994-06-01), Doi et al.
patent: 5337365 (1994-08-01), Hamabe et al.
patent: 5355417 (1994-10-01), Burdisso et al.
patent: 5363451 (1994-11-01), Martinez et al.
patent: 5377275 (1994-12-01), Suzuki
patent: 5377276 (1994-12-01), Terai et al.
patent: 5382134 (1995-01-01), Pla et al.
patent: 5398462 (1995-03-01), Berlin et al.
patent: 5410605 (1995-04-01), Sawada et al.
patent: 5410845 (1995-05-01), Sakamoto et al.
patent: 5414775 (1995-05-01), Scribner et al.
Dirk T. M. Slock, "The Block Underdetermined Covarian (BUC) Fast Transversal Filter (FTF) Algorithm for Adaptive Filtering," Proceedings of the 26th Asilomar Conference on Signals, Systems and Computers (1992).
L. J. Erikkson, J. Acoust. Soc. Am., vol. 89, No. 1, "Development of the filtered-U algorithm for active noice control," pp. 257-265 (Jan. 1991).
I. Nishimura et al., "An Experimental Study of the Active Control of A Building Model", (Nov. 1990), pp. 64-83.
J. C. Burgess, J. Acoust. Soc. Am. vol. 70, No. 3, "Active adaptive sound control in a duct: A computer simulation," pp. 715-726 (Sep. 1981).
B. Widrow et al., Adaptive Signal Processing, pp. 97-140 and 195-230, Prentice Hall (1985).

Affiliated with

Also associated with

Rating

Active controller for the attenuation of mechanical vibrations 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 controller for the attenuation of mechanical vibrations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Active controller for the attenuation of mechanical vibrations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1380671