ROTATING ELECTRICAL MACHINE - MITSUBISHI ELECTRIC CORP

Title:

ROTATING ELECTRICAL MACHINE

Document Type and Number:

WIPO Patent Application WO/2017/119059

Kind Code:

A1

Abstract:

Dynamic vibration absorbers must be designed so that the natural frequency of each individual dynamic vibration absorber is equal to the natural frequency of a stator. If there is a large divergence in the natural frequencies, the effect of the individual dynamic vibration absorbers is diminished. It is therefore necessary to accurately calculate the natural frequency of the individual dynamic vibration absorbers when designing the same. However, in reality, the rigidity of the periphery of the installation location where vibration is to be restricted greatly influences the natural frequency, and the natural frequency on installation can be a different value from the design value. The purpose of the present invention is to reduce the influence of the rigidity of the periphery of the installation location on the natural frequencies of individual dynamic vibration absorbers, thereby rendering dynamic vibration absorber more effective, by mounting a plurality of dynamic vibration absorbers onto a dynamic vibration absorber mounting member.

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Inventors:

KAWASHIMA KOJI (JP)
MATSUMOTO FUMIO (JP)
NAGASHIMA TAKAAKI (JP)
SASAI TAKUMA (JP)

Application Number:

PCT/JP2016/050062

Publication Date:

July 13, 2017

Filing Date:

January 05, 2016

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

H02K5/24; H02K1/18

Foreign References:

JP2011234591A	2011-11-17
JPS562615A	1981-01-12
JPS5760817A	1982-04-13
JP2014096951A	2014-05-22
JP2010124591A	2010-06-03
JP2013061058A	2013-04-04
JP2007210386A	2007-08-23
JP2011182636A	2011-09-15
JP2011234591A	2011-11-17
JP2014096951A	2014-05-22

Other References: