FPSO hull structural design concept supporting controlled project execution

The target ofthe FPSO structural design is firstly to guarantee structural integrity. At the same time it needs to target in minimizing the limitations on the oil and gas production related functions caused by the structural design. The structural design concept developed for this aim is discussed with emphasis on the practical management aspects. The FPSO steel model is developed within a 3D product model supporting all the other disciplines as well. The structural analyses utilize the steel model as a basis for FEA model development. For the structural design analyses a broad spectrum of programs is available ranging from initial design tools to the high end state-of-the-art analysis software. Spectral based procedures are frequently utilized. The load, strength and fatigue analysis capabilities of the design system are illustrated with case examples. The work of the designers is supported by a management framework and procedures adapted for structural design discipline and the use of state-of-the-art analysis software.