Offshore Piping Stress Analysis With Caesar II

Course Overview

This training is designed to provide the engineering background of analyzing piping systems on an offshore floating system, particularly, the Floating Production, Storage, and Offloading (FPSO) Unit. The most peculiar sources of overstress in an FPSO are the hog/sag displacements as a result of the ship-vessel accelerations due to wave actions and loading/unloading scenarios.

This training will provide an in-sight to the FPSO piping stress design philosophies and considerations, understanding of the various load cases, hands-on techniques to solving various stress issues, and general stress analysis report presentation.

At the conclusion of this training, attendees should be able to use CAESAR II to analyze any piping system on an FPSO; model building, including as inputs the various hog/sag/structural displacements and blast load considerations.

Module Highlight

Module 1

  • General Introduction and overview of FPSO design considerations
  • General overview of pipe stress analysis
  • Introduction to CAESAR II for pipe stress analysis

Module 2

  • Building piping model for stress analysis
  • System error checking and load case generation
  • Running stress analysis and post processing

Module 3

  • Load case review - hog, sag, racking, structural displacements
  • Load case review - wind and blast loads
  • Load case review - fatigue analysis

Module 4

  • Equipment Nozzle Load Check
  • Flange Leakage verification; equivalent pressure method, ASME VIII, etc
  • Modal Analysis; check for minimum natural frequency

Module 5

  • Structural supports loads check and verification
  • Revision, Q & A and feedback
  • Q&A and feedback
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