(19)
(11)EP 2 390 748 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
08.08.2012 Bulletin 2012/32

(43)Date of publication A2:
30.11.2011 Bulletin 2011/48

(21)Application number: 11159088.1

(22)Date of filing:  21.03.2011
(51)International Patent Classification (IPC): 
G05D 19/02(2006.01)
(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30)Priority: 25.05.2010 US 787153

(71)Applicant: Raytheon Company
Waltham, MA 02451-1449 (US)

(72)Inventors:
  • Hon, Robert C.
    Playa Del Rey, CA 90293 (US)
  • Silny, John F.
    Playa Del Rey, CA 90293 (US)

(74)Representative: Lebkiri, Alexandre 
Cabinet Camus Lebkiri 87 Rue Taitbout
75009 Paris
75009 Paris (FR)

  


(54)Time domain vibration reduction and control


(57) A vibration control system includes a mechanical system which generates vibration; a sensor configured to measure the vibration and generate a vibration signal thereof, and a processor configured: (a) receive a vibration signal from a sensor in a mechanical system; (b) model the vibration signal using a time-domain function; (c) adjust one of an amplitude coefficient and a phase coefficient of the modeled vibration signal; (d) output a control signal corresponding to the modeled vibration signal to the mechanical system so as to reduce the vibration; and (e) receive another vibration signal from the sensor. Steps (c) - (e) are repeated when the average value of the vibration signal is greater than a predetermined value. A method for vibration control is also disclosed.







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