Overview

To Query Correct set of Bolts on LUG END Type Joint in OpenPlant Modeler.

Problem Description

In OpenPlant Modeler, for a set of Poly size components containing an LJ flange set with a LUG_END type mating component. User wanted to a Place a an LJFlange DN 280 size with a LUG END type joint of size DN250 and mating LJ Flange of size DN280. During the placement, Bolt set was not correctly placed and are required to place a correct set of bolts

Reason

Since LUG_END type creates a separate Joint with its associated components, it should place to set of bolts on assembly. During the investigation it has been found that LUG_END end prep type has been defined incorrectly in PCF file. See image below. 

         

Below are the steps after making some minor changes in pcf file and defining Joint type in schema allow user to place bolts correctly. 

Steps to Resolve

1. Navigate to project folder & open Project pcf file. Say OPModeler_Metric here.
2. Search/Navigate to variable OPM_CUSTOM_FLANGE_TYPE_END_PREPS
3. Remove LUG_END from variable shown above.
4. Add LUG_END to OPM_CUSTOM_FLANGE_TYPE_END_PREPS = LAP_JOINT_END; LUG_END. See image below.  
   
   
   
   
5. In class Editor Open “OpenPlant_3D.01.06.ecschema” & Supplement it with below mentioned schema.
   “OpenPlant_3D_Supplemental_Modeling.01.06.ecschema”.
6. Navigate to JOINT Class.
7. Under Class Tab, Select Custom attribute “OpenPlant_Physical_JointType_Map” & Check joint type [15]. Add end preparation as LUG_END. See image below. 
   
   
   
   
8. Save & close Schema.
9. Launch OpenPlant Modeler, Place component & verify results.  
   
   
   
   
10. Also check the correct calculation of bolts placed as per the formula mentioned below.
    
    Length = Flange_Thickness + Gasket_Thickness + (Valve_Length / 2) – Bolt_Gap
    
    Note - Bolt_Gap is a property of the Lug component, if not defined, it is 1/8th of an Inch, ¼ of an Inch between the two bolts.

Still a Problem?

If above problem still persist, then please create a Service Request and contact the Bentley Product Advantage group.  Please include a list of all relevant details to get in depth analysis for a solution or workaround. 

See Also

communities.bentley.com/.../14484.how-are-bolt-lengths-calculated-in-openplant-modeler

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