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Patent Searching and Data


Title:
VIBRATION CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/221788
Kind Code:
A1
Abstract:
A vibration control device 10 comprises: a piezoelectric device unit 1 configured from piezoelectric devices 1_1-1_12 each of which is fixed on an object 2, the vibration of which is to be controlled; an inductor unit 3 configured from inductors L1-L12; a switching unit 4 configured from switches SW1-SW12; and a control means. In response to a switch SWm being turned ON, one piezoelectric device 1_m (1≤m≤12) of the piezoelectric devices 1_1-1_12 and one inductor Lm of the inductors L1-L12 configure a resonance circuit that resonates at a resonance frequency corresponding to the mth natural frequency of the object 2, the vibration of which is being controlled. The control means 5 controls the resonance of each resonance circuit on the basis of the respective output voltages of the piezoelectric devices 1_1-1_12.

Inventors:
KOYAMA TAKAO (JP)
MIYAKE YOSHIRO (JP)
Application Number:
PCT/JP2017/021989
Publication Date:
December 28, 2017
Filing Date:
June 14, 2017
Export Citation:
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Assignee:
YAMAHA CORP (JP)
International Classes:
F16F15/02; B06B1/06; H02N2/18; H04R1/28; H04R1/02
Foreign References:
JP2004132533A2004-04-30
JP2006183761A2006-07-13
JPS59187132A1984-10-24
JP2006342864A2006-12-21
Attorney, Agent or Firm:
TACHIBANA, Kenji et al. (JP)
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