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:
Nov. 05, 2019
Filed:
Aug. 15, 2017
Applicant:
Bell Helicopter Textron Inc., Fort Worth, TX (US);
Inventor:
Rodney Keith Hale, Joshua, TX (US);
Assignee:
Bell Helicopter Textron Inc., Fort Worth, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64D 45/00 (2006.01); G01N 29/46 (2006.01); G07C 5/00 (2006.01); G01N 29/04 (2006.01); G01N 29/14 (2006.01); B64F 5/60 (2017.01); G07C 5/08 (2006.01); B64C 27/12 (2006.01);
U.S. Cl.
CPC ...
B64D 45/00 (2013.01); B64F 5/60 (2017.01); G01N 29/04 (2013.01); G01N 29/14 (2013.01); G01N 29/46 (2013.01); G07C 5/002 (2013.01); G07C 5/085 (2013.01); G07C 5/0808 (2013.01); B64C 27/12 (2013.01); B64D 2045/0085 (2013.01);
Abstract
A method, system, and device for diagnosing an anomaly of a monitored component in a drive train, the method including: obtaining original data based on samples of a tachometer signal; processing the original data to obtain rotational information; processing the original data to produce a sine spectrum; determining complex magnitudes of the sine spectrum; removing dominate torsional mode residuals from the complex magnitudes of the sine spectrum to produce a frequency spectrum; and determining a condition indicator from the frequency spectrum.