A STRUCTURAL HEALTH MONITORING STRATEGY FOR OFFSHORE JACKET PLATFORM USING A NOVEL FUZZY BASED METHOD

Structural Health Monitoring method (SHM) has been used to decline the effect of the damages caused by marine environmental conditions. Major parts of offshore structures which are not available for diagnosing, change the monitoring process to a big challenge [1]. However, appropriate detection patterns, based on simulation data, are designed to trace the location and extent of damages [2]. In this study, a new method based on the combination of Krill- Herd group and fuzzy inference system is used to perform structural health monitoring process in a fixed jacket platform. A small scale hydro elastic model of an existing fixed offshore platform (SPD9 located in Persian Gulf) is prepared to obtain modal parameters using vibration behavior. The method is shown to be applicable and appropriate in SHM process and also for handling noisydata.