Abstract
Jacket is the fundamental structure of offshore platform, supporting the deck. It is a space frame truss consisting of hollow legs (pipes) and horizontal and vertical rods used to connect legs. Traditionally, damages of jacket must be detected by diving into various depth which would costs a lot. In this article, ANSYS was used to simulate the identification of damage locations. Element Parametric finite-element models which demonstrated several common damages such as corrosion and bending by changing physical and geometric parameters were analysed. It was found that analysis of node vibration data far from the damage location could identify the damage location with ANSYS design optimization.
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