Method and system for monitoring structural damage

Details Method and system for monitoring structural damage Method and system for monitoring structural damage

2005-08-09

2008-09-16

Raymond, Edward (Department: 2857)

Data processing: measuring, calibrating, or testing

Testing system

For transfer function determination

C342S352000

Reexamination Certificate

active

07426447

ABSTRACT:
A method for monitoring damage to a structure having an actuator and a sensor. The method includes exciting the actuator across a predetermined frequency range to excite the structure, measuring a vibrational characteristic of the structure across the predetermined frequency range in response to the excitation of the actuator using the sensor, calculating a transfer function for the actuator and the sensor using the measured vibrational characteristic, determining a change in the vibrational characteristic across the predetermined frequency range using the transfer function, and analyzing the determined change in the vibrational characteristic across the predetermined frequency range to facilitate determining whether the structure is damaged.

REFERENCES:
patent: 5195046 (1993-03-01), Gerardi et al.
patent: 6006163 (1999-12-01), Lichtenwalner et al.
patent: WO2005031501 (2005-04-01), None
PCT Intl Search Report and Written Opinion for Application No. PCT/US2006/030808, dated Aug. 6, 2007, 10 pages.

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