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:
Dec. 14, 2021
Filed:
Apr. 09, 2020
Purdue Research Foundation, West Lafayette, IN (US);
Nicole Leanne Key, West Lafayette, IN (US);
Yujun Leng, West Lafayette, IN (US);
Nicholas Joseph Kormanik, III, West Lafayette, IN (US);
Fangyuan Lou, West Lafayette, IN (US);
Douglas Ryan Matthews, West Lafayette, IN (US);
Purdue Research Foundation, West Lafayette, IN (US);
Abstract
A method to monitor rotor blade vibration using unsteady casing pressure. The method applies a non-intrusive blade vibration monitoring technique by using an array of unsteady pressure sensors which may be flush-mounted in the casing of a compressor. The method comprises using spinning mode theory and temporal-spatial analysis to obtain frequency and nodal diameter information of spinning pressure waves associated with the rotor blade vibration. An example of the compressor can be a multistage axial compressor.