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SUC Brasil 2012 : Importing Models to Sesam GeniE
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SUC Brasil 2012 : Importing Models to Sesam GeniE

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Presented at SUC by Ole Jan Nekstad from DNV, about houw to import finite element of CAD data to Sesam GeniE

Presented at SUC by Ole Jan Nekstad from DNV, about houw to import finite element of CAD data to Sesam GeniE

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  • 1. SesamTM40 years of successImporting FE/CAD data to Sesam GeniEOle Jan NekstadProduct Director - Sesam3 December 2012
  • 2. Why change to Sesam – What’s in it for the customer • Design and engineering efficiency Reduce • Lower building cost Cost • Lower operational cost • Transaparency and sustainability Business Managed • Regulatory requirements Value Risk • Standards compliance • Optimised performance Return on • Reduced downtime Asset • Extended lifetimeConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 2
  • 3. Which purposes can a model serve when imported into Sesam?Convert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 3
  • 4. Our tools – your solutions – your decisions Transportation, launching Transportation, lifting Deflections, stresses, Deflections, stresses, code-check, fatigue code-check, fatigue Data import Non-linear analysis, In-place analysis (wave, pile-soil) collapse, accidents, Deflections, stresses, re-qualifications, life extensions code-check, fatigue, earthquakeConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 4
  • 5. Re-use structural analysis model during life time Sesam for Synergi Structure for Design Inspection planning, execution and follow up Modification Condition monitoring Life extension Trending Sacs STAAD.Pro ANSYS Rhino DXF Sesam Synergi StructureConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 5
  • 6. Import to Sesam GeniE - data formats supported Finite element data (CAE) - FEM format - Sacs format - StruCad3D - StaadPro - Ansys CAD data (lines) - DXF - Rhino - SAT - PDMS (sdnf) - PDS (sdnf) CAD data (surfaces) - SAT - Rhino (prototype) - S3D (prototype)Convert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 6
  • 7. Importing old Sesam format - Structure - Loads - Wave load conditions - Soil dataConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 7
  • 8. Importing old Sesam format to GeniE Primarily for converting re-analysis models of jackets, in some cases import of surface models - Preframe, Prefem, Patran-Pre For frame and plate structures - Basically all structure, sections and materials. The numbering system for beams may be maintained - Manually defined loads such as point, line, pressure, acceleration loads - Wave load data such as hydrodynamic properties, current, wave and load conditions - Soil dataConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 8
  • 9. Importing Sacs format - Structure - Loads - Wave load conditions - Load combinations - Pile - SoilConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 9
  • 10. Importing a Sacs model into Sesam GeniE The procedure today - Import structure, sections, materials (automatic) - Import wishbone connections (automatic) - Import wave load data (automatic) - Import load combinations (automatic) - Import pile data (automatic) - Import soil data (automatic) - Add blanket and equipment loads Once the model has been imported and verified it can be used for all types of analyses in SesamConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 10
  • 11. What are we developing wrt. Sacs import Import of tapered elements – Q3/2013 - Will be converted to segmented members - Today – converted to smallest section Import of blanket loads – Q3/2013 - Equipments and footprints in Sesam GeniE to be used - Today manual conversion of data – an easy task Import of equipments – Q3/2013 - Equipments and footprints in Sesam GeniE to be used - Today manual conversion of data – an easy task Import of wind load data – Q3/2013 - Beams and equipmentsConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 14
  • 12. Demo - 2 Importing a module - 300 load combinations All data is imported and no manual work is neededConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 16
  • 13. Demo - 5 A jacket where piles and soil are importedConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 19
  • 14. Importing StruCad format - Structure - LoadsConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 20
  • 15. Importing StruCad data Capabilities structure, sections, materials and manually defined loads - Includes beams and plates Limitations - Load combinations - Hydrodynamic properties and wave loads - Pile and soil dataConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 21
  • 16. Importing StaadPro format - Structure - LoadsConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 24
  • 17. Importing StaadPro data Capabilities structure and manually defined loads and load combinations - Includes beams, plates, eccentricities, boundary conditions Limitations - Sections not defined in StaadPro (reference to database) - A separate utility tool creating a GeniE js-fileConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 25
  • 18. A typical example A small topside - All converted and analysis can be run at once - 78 basic load cases, 73 load combinationsConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 26
  • 19. Importing Ansys format - Structure - LoadsConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 28
  • 20. Importing Ansys data The Ansys file is converted to a FEM file for import to GeniE - Structure, sections, materials and manually defined loads Limitations - Linear dependencies and second order elements - Surface and line loads on shells. Temperature loadsConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 29
  • 21. Example Midship frameConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 30
  • 22. Import lines from CAD - DXF - Rhino - SAT - PDMS (sdnf) - PDS (sdnf)Convert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 31
  • 23. Import DXF Points, lines and poly-linesConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved.
  • 24. Import DXF – a typical barge Poly-lines used in skinningConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 33
  • 25. Import DXF – a typical FPSO Curves form the basis of surface generations – cover, skinning, curve-net interpolationConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 34
  • 26. Import from Rhino Requires that customer has Rhino and installs a plug-in Rhino4ToGeniE.rhp developed by usConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved.
  • 27. Import from Rhino The plug-in will produce a js-file for import to GeniEConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved.
  • 28. Import lines from Rhino Example of importing selected lines from RhinoConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 37
  • 29. Import lines from Rhino A real case example - The lines are exported from Rhino and surfaces are made by cover, flat-region, skinning and curve-net interpolation - There are few surfaces leading to a model that is applicable for establishing both a panel model and a structural analysis model Rhino modelConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 38
  • 30. Import lines from Rhino Details of the hull Rhino model GeniE lines GeniE mesh GeniE surfaceConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 39
  • 31. Import lines from Rhino Details of interior Rhino model GeniE lines GeniE mesh GeniE surfaceConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 40
  • 32. Some remarks on DXF and Rhino Early versions of DXF; lines and circles only – these lines need to be approximated with splines before making the surfaces Newer versions of DXF and Rhino use splines and NURBS – surface generation can be done on these Example of many small lines approximated with splinesConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 41
  • 33. The importance of having as few surfaces as possible Better user control of the mesh - Coarse element density, global strength analysis and panel modelling - Fine mesh density, detailed strength analysis Coarse mesh Fine meshConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 42
  • 34. Export lines to Rhino On-going developmentConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 43
  • 35. Import surfaces from CAD - SAT - Rhino – prototype - S3D – prototypeConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 44
  • 36. Surfaces from SAT A surface made in a CAD system supporting the SAT format - Several surfaces removed for visibility Label free edgesConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 45
  • 37. Surfaces from Rhino – example 1 A surface made in RhinoConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 47
  • 38. Surfaces from Rhino – example 1 Imported to Sesam GeniEConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 48
  • 39. Surfaces from Rhino – example 2 Another surface made in RhinoConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 49
  • 40. Surfaces from Rhino – example 2 Imported to Sesam GeniEConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 50
  • 41. Surfaces to Rhino – example 3 Curves created in RhinoConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 51
  • 42. Surfaces to Rhino – example 3 Curves imported to Sesam GeniEConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 52
  • 43. Surfaces to Rhino – example 3 Surfaces made in Sesam GeniEConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 53
  • 44. Surfaces to Rhino – example 3 Surfaces exported from Sesam GeniE to Rhino - The hull is now mirrored as compared to the starting position in RhinoConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 54
  • 45. Model data from S3D Intergraph is making a prototype converter supporting the Sesam GeniE XML format - Better than pure geometry data transfer - Material, thickness, section properties part of the data conversion S3DConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 55
  • 46. To summarizeConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 56
  • 47. Import to Sesam GeniE - data formats supported Finite element data (CAE) - FEM format - Sacs format - StruCad3D - StaadPro - Ansys CAD data (lines) - DXF - Rhino - SAT - PDMS (sdnf) - PDS (sdnf) CAD data (surfaces) - SAT - Rhino (prototype)Convert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 57
  • 48. Crossing the bridge to SesamConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 58
  • 49. Crossing the bridge gives access to a complete systemConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 59
  • 50. Crossing the bridge to Sesam GeniE There are operators that are migrating their data to Sesam - A leading operator world wide has 200+ models to be converted Pilot projects with other leading operators on data migration - In total these have more than 500 data models to be converted A streamline conversion process will lead to economic gains for the operators - Quality of data transfer, support, assistance, software functionality, long term commitments from DNVSConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 61
  • 51. Safeguarding life, property and the environment www.dnv.comConvert model to Sesam GeniE format3 December 2012© Det Norske Veritas AS. All rights reserved. 62