Wiki Page: Orifice Type Piping Components - Modeling Approaches, Tips, Techniques used in AutoPIPE

Applies To Product(s): AutoPIPE, Version(s): 2004, XM, & V8i Environment: N/A Area: Modeling Subarea: Original Author: Bentley Technical Support Group Problem: How to model Orifice type piping components? Answer: I n general AutoPIPE is not a flow analysis program like PlantFLOW. Consequently AutoPIPE is only concerned with providing a stress analysis based on the model geometry, weight, support / restraining system, piping connections, and general loads applied. Orifice type components are generally sandwiched between a set of flanges. Therefore, modeling an orifice component must account for weight, attachment to the piping system, assumed rigidity, and assumed thermal expansion. Example: How to model a typical orifice plate between 2 flanges Because the orifice plate is not adding a moment arm, thermal expansion is going to be minimal, assumed to be rigid, etc... Suggest modeling 2 flanges with the correct connection so SIF's are correctly calculated, Then select the node point and Insert> Xtra Data> added weight enter the weight of the orifice plate (ex. 5 lbs). Done. See following AutoPIPE model example: See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU!