The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 02, 2019
Filed:
Dec. 19, 2013
Applicant:
Ntn Corporation, Osaka, JP;
Inventors:
Tomoya Sakaguchi, Kuwana, JP;
Hideyuki Tsutsui, Kuwana, JP;
Assignee:
NTN CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 19/00 (2006.01); G01M 13/045 (2019.01); F16C 19/52 (2006.01); G01M 13/04 (2019.01);
U.S. Cl.
CPC ...
G01M 13/045 (2013.01); F16C 19/00 (2013.01); F16C 19/527 (2013.01); G01M 13/04 (2013.01);
Abstract
A vibration analysis method includes the steps of: inputting damage data of a rolling bearing; calculating, by a dynamics analysis program, a history of an exciting force occurring to the rolling bearing due to damage when a rotational shaft of the rolling bearing is rotated; calculating, by a mode analysis program, a vibration characteristics model of the bearing device; and calculating a vibration waveform at a predetermined position on the bearing device by applying to the vibration characteristics model the history of the exciting force calculated in the step of calculating a history of an exciting force.