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. 11, 2015
Filed:
Aug. 27, 2010
Sanghum Baik, Niskayuna, NY (US);
Vivek Venugopal Badami, Schenectady, NY (US);
Yogesh Kesrinath Potdar, Niskayuna, NY (US);
Adrian G Loghin, Rexford, NY (US);
Nuo Sheng, Schenectady, NY (US);
Sanghum Baik, Niskayuna, NY (US);
Vivek Venugopal Badami, Schenectady, NY (US);
Yogesh Kesrinath Potdar, Niskayuna, NY (US);
Adrian G Loghin, Rexford, NY (US);
Nuo Sheng, Schenectady, NY (US);
General Electric Company, Niskayuna, NY (US);
Abstract
Methods, systems and computer program products for assessing residual life of an airfoil, which would experience high cycle fatigue failure under at- or near-resonance vibration condition, are provided. The method includes receiving, at a processing system, at least one vibration response parameter associated with the airfoil. The method processes at least one cracked airfoil finite element model. Processing the cracked airfoil finite element model includes accessing the cracked airfoil finite element model, computing a modal stress intensity factor (SIF) of the cracked airfoil finite element model using fracture mechanics based finite element analysis, and computing a vibratory SIF based, at least in part, on the modal SIF and the at least one vibration response parameter. The method then computes a residual life indicator of the airfoil based, at least in part, on the vibratory SIF.