Vibration damping system and elevator apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12049385
APP PUB NO 20210094793A1
SERIAL NO

17051799

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An object of the invention is to provide a vibration damping system that can avoid the occurrence of resonance of an elevator rope regardless of the vibration frequency of a vibration source. A vibration damping system (200) includes a displacement amplifier (7), a calculation unit (66), and a displacement amplification control unit (67). The displacement amplifier (7) is arranged along a given position in the longitudinal direction of the elevator rope. The displacement amplifier (7) amplifies a displacement due to vibration of the elevator rope based on a variable amplification factor. The calculation unit (66) calculates the natural frequency of the elevator rope. The displacement amplification control unit (67) controls the displacement amplification of the displacement amplifier (7) based on the natural frequency calculated by the calculation unit (66) and a preset vibration frequency.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI ELECTRIC CORPORATIONTOKYO 100-8310

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Asamura, Tomohiro Tokyo, JP 6 22
Chikada, Yusuke Tokyo, JP 4 18
Fukui, Daiki Tokyo, JP 13 121
Hirai, Takahide Tokyo, JP 9 48
Nakazawa, Daisuke Tokyo, JP 16 84
Saito, Eiichi Tokyo, JP 21 129
Watanabe, Seiji Tokyo, JP 95 1296

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