Methods for forewarning of critical condition changes in monitoring civil structures

Abercrombie, Robert K.; Hively, Lee M.

Title: Methods for forewarning of critical condition changes in monitoring civil structures

Patent · Tue Apr 02 00:00:00 EDT 2013

OSTI ID:1083901

Abercrombie, Robert K.; Hively, Lee M.

Sensor modules (12) including accelerometers (20) are placed on a physical structure (10) and tri-axial accelerometer data is converted to mechanical power (P) data (41) which then processed to provide a forewarning (57) of a critical event concerning the physical structure (10). The forewarning is based on a number of occurrences of a composite measure of dissimilarity (C.sub.i) exceeding a forewarning threshold over a defined sampling time; and a forewarning signal (58) is provided to a human observer through a visual, audible or tangible signal. A forewarning of a structural failure can also be provided based on a number of occurrences of (C.sub.i) above a failure value threshold.

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Research Organization:: ORO (Oak Ridge Office, Oak Ridge, TN (United States))

Sponsoring Organization:: USDOE

DOE Contract Number:: AC05-00OR22725

Assignee:: UT-Battelle, LLC (Oak Ridge, TN)

Patent Number(s):: 8,410,952

Application Number:: 12/962,787

OSTI ID:: 1083901

Country of Publication:: United States

Language:: English

References (19)

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