Title:
VIBRATION DAMPING SYSTEM AND ELEVATOR DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/220672
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a vibration damping system that can avoid the occurrence of resonance of elevator rope regardless of the excitation frequency of an excitation source. This vibration damping system (200) comprises a displacement amplifier (7), a calculation unit (66), and a displacement amplification control unit (67). The displacement amplifier (7) is disposed along any position in the longitudinal direction of the elevator rope. The displacement amplifier (7) amplifies the displacement due to the vibration of the elevator rope with a variable amplification factor. The calculation unit (66) calculates the natural frequency of the elevator rope. The displacement amplification control unit (67) controls the amplification of displacement by the displacement amplifier (7) on the basis of the natural frequency calculated by the calculation unit (66) and a preset excitation frequency.
Inventors:
SAITO EIICHI (JP)
HIRAI TAKAHIDE (JP)
WATANABE SEIJI (JP)
NAKAZAWA DAISUKE (JP)
FUKUI DAIKI (JP)
ASAMURA TOMOHIRO (JP)
CHIKADA YUSUKE (JP)
HIRAI TAKAHIDE (JP)
WATANABE SEIJI (JP)
NAKAZAWA DAISUKE (JP)
FUKUI DAIKI (JP)
ASAMURA TOMOHIRO (JP)
CHIKADA YUSUKE (JP)
Application Number:
PCT/JP2018/044403
Publication Date:
November 21, 2019
Filing Date:
December 03, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
B66B7/06; F16F15/02; F16F15/03
Foreign References:
| JPH0326682A | 1991-02-05 | |||
| JP2007309411A | 2007-11-29 | |||
| JP2007119185A | 2007-05-17 | |||
| JP2004250217A | 2004-09-09 |
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (JP)
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