Structural Digital Twin of FPSO for Monitoring the Hull and Topsides Based on Inspection Data and Load Measurement
Shankar Bhat, Varadarajan Nadathur, David J. Knezevic, Pieter Aalberts, Hans Kolsters, Daniel Amuda, Orobome Atebe, D. T. R. Pasala, Tuyen Hoang, Trong Huu Luong, Phương Huỳnh, Riccardo Righetti, Remco Hageman, Jim Yu
Abstract
Abstract A high-fidelity FPSO Structural Digital Twin (SDT) based on Reduced Basis Finite Element Analysis (RB-FEA) coupled with inspection data and physical sensor measurements (advisory hull monitoring system) is presented to demonstrate a complete FPSO "digital thread" that combines operational data feeds, detailed structural analysis based on as-is asset condition, and automated structural integrity reporting. This lays the groundwork for a philosophical shift for asset lifecycle management by enabling the use of "as-measured" conditions in lieu of assumed "design-conditions" for a more accurate, and robust understanding of asset health. We demonstrate the deployment of this methodology for the Bonga FPSO and discuss the value that it brings during day-to-day operations.