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:
Aug. 20, 2019
Filed:
Nov. 13, 2017
Applicant:
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Inventors:
Shigeyoshi Umemiya, Fujisawa, JP;
Hironobu Kitajima, Kawasaki, JP;
Assignee:
FUJITSU LIMITED, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01P 13/00 (2006.01); G01M 5/00 (2006.01); G01H 13/00 (2006.01); G01M 17/007 (2006.01);
U.S. Cl.
CPC ...
G01M 5/0066 (2013.01); G01H 13/00 (2013.01); G01M 5/0008 (2013.01); G01M 5/0033 (2013.01); G01M 17/007 (2013.01); G01P 13/00 (2013.01);
Abstract
An estimating method, includes: generating, by a computer, a plurality of frequency spectra based on data measured during movement on a structure at a plurality of speeds; identifying a range of a natural frequency of the structure based on the plurality of frequency spectra; and calculating the natural frequency based on one or more dominant frequencies included in the range among dominant frequencies of the plurality of frequency spectra and speeds when the one or more dominant frequencies included in the range are measured.