Kaitlin M Olsen

US Patent:

20160230588, Aug 11, 2016

Filed:

Feb 11, 2015

Appl. No.:

14/619757

Inventors:

- Hartford CT, US
Kevin J. Klinefelter - Uncasville CT, US
Elizabeth F. Vinson - Wethersfield CT, US
Kaitlin Olsen - Manchester CT, US
Thomas R. Davis - Cheshire CT, US

International Classification:

F01D 21/00
G01H 9/00
G01H 13/00

Abstract:

A resonant frequency testing system for airfoils comprises a broach block, a clamp, an acoustic speaker, a laser vibrometer, and a control processor assembly. The broach block has a slot disposed to receive the airfoil in an airfoil location. The clamp has a torque-actuated shutoff, and is disposed to lock the airfoil in the broach block slot under a fixed clamping force. The acoustic sensor is disposed adjacent the airfoil location to emit sonic pulses, and the laser vibrometer is oriented towards the airfoil location to sense vibration signatures of the airfoil when excited by the sonic pulses. The control processor assembly is configured to control the acoustic speaker and laser vibrometer, to decompose the sensed vibration signatures into resonant frequencies of the airfoil, and to store the resonant frequencies in a digital storage database, correlated with a unique ID corresponding to the airfoil