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Cross Modal Strain Energy Method for Damage Localization and Severity Estimation

[+] Author Affiliations
Shuqing Wang, Huajun Li

Ocean University of China, Qingdao, China

Sau-Lon James Hu

University of Rhode Island, Kingston, RI

Paper No. OMAE2007-29381, pp. 245-249; 5 pages
  • ASME 2007 26th International Conference on Offshore Mechanics and Arctic Engineering
  • Volume 2: Structures, Safety and Reliability; Petroleum Technology Symposium
  • San Diego, California, USA, June 10–15, 2007
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 0-7918-4268-1 | eISBN: 0-7918-3799-8
  • Copyright © 2007 by ASME


A cross modal strain energy (CMSE) damage diagnosis method, which is capable of localizing the damages and estimating their severities, is presented. The numerical study uses measurements synthesized from a finite element model of a laboratory-scaled offshore platform. Several damage scenarios are investigated, including: single/double damaged element(s), with/without measurement noise. Numerical results suggest that good performance on both damage location and severity assessment can be achieved by implementing the CMSE method.

Copyright © 2007 by ASME



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