The objective was to obtain and analyze vibration data from selected offshore platforms using a system identification technique. This data will be used to develop an analytical model of the platform for a study of the dynamic motion of the structure subjected to earthquake loading. This project is being conducted concurrently with Project Nos. 68 and 125.
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.
