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:
Jun. 11, 2019
Filed:
Oct. 14, 2014
Simmonds Precision Products, Inc., Vergennes, VT (US);
Lei Liu, Shelburne, VT (US);
Simmonds Precision Products, Inc., Vergennes, VT (US);
Abstract
A method for monitoring for a surge condition includes detecting a surge condition through vibration signals measured at at least one location in a turbomachine. Detecting a surge condition includes determining a ratio-metric indicator Rby comparing a blade frequency band Ωto a reference frequency band Ω. Detecting a surge condition includes calculating a surge score SS with the following equation: wherein Ris a sample mean of a set of ratio-metric indicators and Ris a sample standard deviation of a set of ratio-metric indicators. Detecting a surge condition includes determining whether a surge condition exists based on the surge score.