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AutoPIPE Wiki 02a. Model Subsea (Underwater) Piping - AutoPIPE
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    • -Pipe and Vessel Stress Analysis - Wiki
      • -.Bentley AutoPIPE
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          • -Modeling Approaches in AutoPIPE
            • .b - Cuts: Cold Spring Modeling example in AutoPIPE
            • .c Frames / Beams - Modeling in AutoPIPE
            • +.h - "Bend" - Modeling Approaches in AutoPIPE
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            • .n - "Vessels" - Modeling Approaches in AutoPIPE
            • +01a. Model Different Types of PIPING in AutoPIPE
            • +01b.Model Different Types of PIPING Components - AutoPIPE
            • +01c. Model Non-metallic Plastic Piping (i.e. Plastic, PVC, PP, PPR, HDPE, PE, FRP, GRP, etc.)
            • +01d. Model a Ring Main (circular header) with AutoPIPE
            • 01e. Model a LONG PipeLines with AutoPIPE
            • +01f. Model Different Types of PIPING Routings (i.e. By-Pass, Join 2 pipe runs, etc..) using AutoPIPE
            • -02a. Model Subsea (Underwater) Piping - AutoPIPE
              • 01. Model Pipe resting on the seabed floor using AutoPIPE
              • 02. How to model a Concrete Mattress for subsea / underwater piping using AutoPIPE?
              • 03. How to model riser clamps on subsea / underwater piping using AutoPIPE?
              • 04. How to model Concrete Encased Steel Pipe for subsea / underwater piping using AutoPIPE?
              • 05. Is AutoPIPE software suitable for the analysis of subsea pipeline crossings?
              • 06. Does AutoPIPE consider external pressure or temperature for underwater / subsea piping?
              • 07. Is AutoPIPE suitable for deep offshore analysis as regard to calculating true pipe wall force which will take into consideration the end cap effect and external pressure?
              • 08. Is it possible to simulate the free catenary for subsea / underwater pipeline using AutoPIPE?
              • 09. What soil calculation method should be applied to underwater / subsea piping when using AutoPIPE?
              • 10. How many nodes need to put at the pipeline's Wave / surface interface in order to simulate the hydrodynamic forces CD and CM values on an underwater / subsea piping when using AutoPIPE?
              • 11. How to enter Hydrodynamic data for mass points located between actual node points in AutoPIPE?
              • 12. What are typical Hydrodynamic Data settings for seabed piping and riser on offshore underwater / subsea piping using AutoPIPE?
              • 13. How can I verify if hydrodynamic data is being applied to my seabed piping model when using AutoPIPE?
              • 14. Is marine growth thickness on a riser pipe included for Buoyancy loads and Wave loads for AutoPIPE analysis?
              • 15. On long risers supported at the bottom, does AutoPIPE calculate the compressive stresses due to selfweight?
              • 16. In AutoPIPE, how are the hydrodynamic coefficients determined when they are set to Automatic?
              • 17. All hydrodynamic coefficients change significantly when a pipe comes close to, or lies on the seabed. Is this effect incorporated automatic in AutoPIPE's calculations?
              • 18. How to model a subsea expansion loop in AutoPIPE?
              • 19. Can all dynamic analysis (ex. Response Spectrum, time history, Harmonic, etc..) be performed on underwater piping correctly while using AutoPIPE?
            • 02b. Modeling Offshore Piping per BS8010 or CSAZ662 section 11 Piping Codes
            • +02c. Model Soil Properties with Soil Calculator and Underground Piping in AutoPIPE
            • +03a. Model Rotating Equipment: Pumps, Compressor, Turbine in AutoPIPE
            • +03b. Modeling Vessel / Nozzles in AutoPIPE
            • +03c. Modeling Support and Beam Structures in AutoPIPE
            • +03d. Modeling Anchors in AutoPIPE
            • +04a. Modeling Seimic Analysis - AutoPIPE
            • 04b. Model Buckling - AutoPIPE
            • +04d. Model Concentrated Forces - AutoPIPE
            • 04f. Model Vacuum (Negative Pressure) Piping in AutoPIPE
            • 04g. Model Fluid / Gas Density in AutoPIPE
            • +04h. Modeling Thermal type load cases with AutoPIPE
            • +04i. Model Pump / Compressor (Oscillating) Vibration - AutoPIPE
            • 04j. Model Flow (Oscillating) Vibration - AutoPIPE
            • +04k. Model Blast Loading in AutoPIPE
            • +04l. Model Cut short / Cut long in AutoPIPE
            • 04m. Model Cryogenic piping in AutoPIPE
            • 04n. How to model / perform Creep Analysis with AutoPIPE?
            • 04o. How to model a Smart Pig going thru the Pipeline in AutoPIPE?
            • 04p. Input node point displacement / acceleration from field data in AutoPIPE?
            • 04r. How to model a Relief Valve thrust force in an AutoPIPE model?
            • 04s. How to model a thrust via a flowing fluid (i.e. impulse-momentum change equation) to an AutoPIPE model?
            • 04t. How to model the load on a piping system installed on a ship, Rig, or FPSO (Floating Production Storage and Offloading) when using AutoPIPE?
            • +05a. Cut / Copy / Paste / Rotate / Move / Stretch Commands
            • +05b. AutoPIPE command - "Convert Point to" - Run, Bend, or Tee
            • +05d. Delete Command in AutoPIPE
            • 06a. Modeling approach to account for piping beyond modeled piping
            • 06b. Apply More Than 1 Piping Code In an AutoPIPE Model
            • 06c. How to model a liquid (water) / gas (foam or air) Fire Protection piping system in AutoPIPE?
            • 06d. How to model vaporization / boiling of liquid in pipe that causes a pressure wave to travel up the line in AutoPIPE?
            • 06e. How to model a pipe riser (vertical pipe) to correctly account for GR weight on each floor support in AutoPIPE
            • 06f. Modeling a Manway / access port in a pipe sidewall using AutoPIPE
            • 06g. Using load case displacement as a new starting point for analysis in AutoPIPE?
            • 06h. How to model node point shared by more than 1 model?
            • 06i. How to model miss aligned pipe pulled back into original position using AutoPIPE?
            • 06j. How to model lifting pipe segment(s) using AutoPIPE?
            • 06k. How to model piping systems not aligned with the global axis using AutoPIPE?
            • 06l. Guidance for modelling Bell and Spigot type joint
            • 06M. How to model piping systems in which upper pipe is supported on lower pipe using AutoPIPE?
            • 7a. Modeling scenario using AutoPIPE: hot tapping a pipeline under operating condition, stresses in system after plant shutdown
            • 7b. Model Joule-Thomson effect and solving the transient heat transfer through the thickness of the pipe using AutoPIPE?
            • Tutorial - Water Hammer (Time History) Example - Modeling Approach in AutoPIPE
          • +Modules (i.e. Flange Analysis, Spring Hanger Selection, Rotating Equip, TTA) in AutoPIPE
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      • +.Bentley AutoPIPE Vessel (powered by Microprotol)
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    • +Attend a live meeting with an AutoPIPE Analyst
    • +Q. How to install a patch sent by Bentley AutoPIPE development team?

     
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    02a. Model Subsea (Underwater) Piping - AutoPIPE

    Frequently asked questions on modeling offshore underwater / sub sea piping:

    Modeling
    • Pipe resting on the seabed floor

    • Concrete Mattress

    • Riser clamps

    • Concrete Encased Steel Pipe

    • Free catenary pipe

    • Expansion loop

    • Wave / surface interface

    • Marine growth thickness

    Hydrodynamic Data
    • Model Hydrodynamic data for mass points between actual node points

    • Typical Hydrodynamic data settings

    • Verify if hydrodynamic data applied to model

    • Determine hydrodynamic coefficients

    • Consideration of automatic updating hydrodynamic coefficients at the bottom of the riser pipe

    Miscellaneous
    • Software suitable for the analysis of subsea pipeline crossings

    • Software suitable for deep offshore analysis

    • Considering external pressure or temperature for underwater / subsea piping

    • Consideration of compressive stresses due to self weight in riser

    • Dynamic analysis underwater piping

    • Soil calculation method

    See Also

    Modeling Approaches

    Bentley AutoPIPE

    • Subsea
    • AutoPIPE
    • Modeling
    • Offshore
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    • Mike Dattilio Created by Bentley Colleague Mike Dattilio
    • When: Fri, Aug 9 2013 12:28 PM
    • Mike Dattilio Last revision by Bentley Colleague Mike Dattilio
    • When: Mon, Mar 20 2023 6:55 PM
    • Revisions: 36
    • Comments: 0
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