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Technology
Assessment & Research (TA&R) Program
| Project
Number |
104 |
| Date of Summary |
December 31, 1986 |
| Subject |
Damage Evaluation by System
Identification Techniques |
| Performing Activity |
Advanced Technology and Research, Inc. |
| Principal Investigator |
Dr. Jackson Yang |
| Contracting Agency |
Federal Railroad Administration |
| Estimated Completion |
Complete |
| Description |
Inspection of offshore platforms
may be performed by divers, remote-controlled vehicles, or other electronic techniques.
These approaches are limited by water depth, prevailing weather, and other conditions on
the platform. The objective of this project is to investigate the feasibility of using
system identification techniques as methods for early detection, identification, and
location of damage in offshore structures. The intent is to evaluate the condition of the
platform in a way which will be meaningful to the actual installation under normal
operational modes. This project is an adjunct to Project No. 23. |
| Progress |
Complete. Numerical experiments
using a complex structural model of an offshore platform with embedded structural flaws
and damage were conducted and were verified using system identification techniques. The
influence of the flaws and damages on the vibrational response of the model were studied. |
Reports |
AA
(44 pages, 1,233 KB)
 |
Yang, J. A., A Study of the
System Identification Technique for Damage Detection, Final Report, Advanced Technology
and Research Inc., Burtonsville, Maryland, November 1986. |
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