Bentley Communities
Bentley Communities
  • Site
  • User
  • Site
  • Search
  • User
AutoPIPE
  • Product Communities
AutoPIPE
AutoPIPE Wiki .k - Pipes - Modeling in AutoPIPE
    • Sign In
    • -Pipe and Vessel Stress Analysis - Wiki
      • +ADL PIPE
      • -Bentley AutoPIPE
        • +- General Information about AutoPIPE
        • +- NEW User Guide for AutoPIPE
        • +- Technical Support - AutoPIPE
        • +Batch Processing, ITS, and ATS using AutoPIPE
        • AutoPIPE QA&R program
        • +Download - Install - Release Notes - AutoPIPE
        • +File / Model Management using AutoPIPE
        • +General - AutoPIPE
        • +Graphics - AutoPIPE
        • +Grids (Input & Results) - AutoPIPE
        • +Import and Export - AutoPIPE
        • +Known Issues in AutoPIPE (Enhancements, defects, etc..)
        • +Libraries - AutoPIPE
        • +License AutoPIPE -
        • +Loads and Load Sets - AutoPIPE
        • +Localization (Non-English Language) - AutoPIPE
        • -Modeling Approaches in AutoPIPE
          • .b - Cuts: Cold Spring Modeling example in AutoPIPE
          • .c Frames / Beams - Modeling in AutoPIPE
          • +.h - "Bend" - Modeling Approaches in AutoPIPE
          • +.i - "Flexible Joints" - Example Modeling Approaches in AutoPIPE
          • .k - Pipes - Modeling in AutoPIPE
          • .l - Rotating Equipment - Modeling 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
          • 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 Bowing Analysis 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?
          • 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
        • +Piping codes - AutoPIPE
        • +Post Processing - AutoPIPE
        • +Printing - AutoPIPE
        • +Reports - AutoPIPE
        • Security
        • +Settings - AutoPIPE
        • +Stress Isometrics - AutoPIPE
        • +Technology Productivity Capabilities
        • +Warnings, Errors, Crashed, Confirm, etc.. messages in AutoPIPE
      • +Bentley AutoPIPE Nozzle (WinNOZL)
      • +Bentley AutoPIPE Vessel (powered by Microprotol)
      • +Bentley PlantFLOW
      • +Bentley PULS
    • Multi-lingual announcement from BENTLEY TECHNICAL SUPPORT.
    • Working at Home with AutoPIPE
    • +AutoPIPE Brand Learning Resources
    • +Attend a live meeting with an AutoPIPE Analyst

     
     Questions about this article, topic, or product? Click here. 

    .k - Pipes - Modeling in AutoPIPE

    Item #1:Comments, Questions, and Answers on modeling approach for Pipe Runs in AutoPIPE:

    Need to find out what the maximum suggested length between two points on a pipe run is, as it seems to affect the displacement (visually at least). I.e. i have a point to point run of 5m when i subdivide this run into 4 sections (adding 3 points) the deflection appears to change. What then is the limit of convergence of the results?

    Answer:

    When running a non-linear analysis, the specified settings for the model to converge can be found under:

    (For AutoPIPE V8i 09.06.00.xx and lower) Load> Static Analysis sets> select a non linear analysis set and press the modify button> press the OK button, the following is displayed:

    See the online help for details on this dialog. 

    About the maximum spacing between node points, the animations shown in AutoPIPE are extreme exaggerations of the results. Recommend to not use the visual representation, but refer to the actual results for actual displacements of node points. The animation is a good tool in understanding what is happening to the entire model. The closer the node points are modeled the more accuracy of the results along that span of pipe. With node point further apart, the application accuracy is still the same but you do not have as much information along the entire span as if there were more node points.

    To answer this question directly, the displacement results at corresponding node points would be the same.

    Example:

    Given the following model:

    The Results displacement at corresponding point A02 / B05 are identical

    Only difference is that segment b has more results along the span of pipe between B00 - B05 than does A00 - A02. 

    See Also

    Modeling Approaches

    Bentley AutoPIPE

    • Pipe
    • AutoPIPE
    • Modeling
    • Share
    • History
    • More
    • Cancel
    • Mike Dattilio Created by Bentley Colleague Mike Dattilio
    • When: Tue, May 6 2014 5:04 PM
    • Mike Dattilio Last revision by Bentley Colleague Mike Dattilio
    • When: Tue, Dec 19 2017 7:54 PM
    • Revisions: 6
    • Comments: 0
    Recommended
    Related
    Communities
    • Home
    • Getting Started
    • Community Central
    • Products
    • Support
    • Secure File Upload
    • Feedback
    Support and Services
    • Home
    • Product Support
    • Downloads
    • Subscription Services Portal
    Training and Learning
    • Home
    • About Bentley Institute
    • My Learning History
    • Reference Books
    Social Media
    •    LinkedIn
    •    Facebook
    •    Twitter
    •    YouTube
    •    RSS Feed
    •    Email

    © 2023 Bentley Systems, Incorporated  |  Contact Us  |  Privacy |  Terms of Use  |  Cookies