genie : parametric modelling and importing of offset tables

Ole Jan Nekstad, Sesam Product Manager, DNV Software15 June 2011

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SesamTM

40 years of success

Parametric modelling and importing offset tables

Presenter

Presentation Notes

This presentation has been made by Ole Jan Nekstad, Sesam Product Manager The presentation should be showed in “Slide Show” mode. You are requested to read the notes prior to presenting this powerpoint.

© Det Norske Veritas AS. All rights reserved.

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Parametric modelling


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Applications of JScript in GeniE Develop custom engineering applications

- Script that controls GeniE and other programs

Perform standard operations- Setting up a new workspace- Set code check parameters- Reporting

Create models- Well organized model- Steady progress- Robust against changes- Parametric modeling

Extensive model updates- Efficient- Quality control

Distributed loads- Load intensity as JScript


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Parametric models in GeniE Can be combination of variables and

reference point modelling

The journal file refers to beam ends rather than

explicitcoordinate values

Bm1

Bm2

Bm6

Bm5 Bm4

Bm3

Bm1 = Beam(Point(0m,0m,0m),Point(0m,10m,0m));Bm2 = Bm1.copyTranslate(Vector3d(0m,0m,10m));Bm3 = Beam(Bm1.end1,Bm2.end1);Bm4 = Beam(Bm1.end2,Bm2.end2);Bm5 = Beam(Bm3.end1,Bm4.end2);Bm6 = Beam(Bm3.end2,Bm5.project(Bm3.end2));


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Parametric models in GeniE Modify input parameters and

re-run journal file- New length of Bm1: 15 m- New copy vector: 5 m

Bm1 = Beam(Point(0m,0m,0m),Point(0m,15m,0m));Bm2 = Bm1.copyTranslate(Vector3d(0m,0m,5m));Bm3 = Beam(Bm1.end1,Bm2.end1);Bm4 = Beam(Bm1.end2,Bm2.end2);Bm5 = Beam(Bm3.end1,Bm4.end2);Bm6 = Beam(Bm3.end2,Bm5.project(Bm3.end2));

• New model automatically created• Much more advanced models may be created• GeniE comes with wizards using this feature• ‘Clean’ js-file (File > Export > Genie journal file) loses reference

point

Bm1

Bm2

Bm6Bm5

Bm4Bm3


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Custom Engineering Application Example on student use at a university


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Custom Engineering Application Parametric models available from Excel VBA


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Angle

Angle 40 deg

Angle 45 deg


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B=60 m

B=50 m


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Custom Engineering Application Parametric models as part of the GeniE installation – jacket

- Help -> Help Topics > Wizard templates


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GeniE – become more efficient by using scripting The GeniE SnackPack gives you access to a number of script utilities that you can

use to improve your performance- Access from DNV Software web site under downloads (https://projects.dnv.com/sesam/Genie_utils/index.html)

- Learn from pre-defined scripts and make your own

Example: How to convert a beam model to a shell model?

Presenter

Presentation Notes

Read the text: Many of our users are already using the scripting functionality in GeniE to make parametric models, customized reporting or other user operations. To make these possibilities more known among all users, we have made a GeniE SnackPack with many examples to learn from. You can find it on our download services at DNV.com/software. Start the video and use the text (duration 2 minutes and 15 seconds): 0 sec: The Snack pack is available from DNV Software’s web site. It is located under downloads and there is free access to it. For each of the categories there are both script files as well as a reference model case that will help you to regenerate the results as well as to learn from it to customize to your own need. If you have scripts you want to share with other Sesam users, please contact us. 25 sec: The start page explains more about the purpose of the SnackPack 34 sec: The section related to hull forms has several parametric models and the offshore vessel is shown in detail here 52 sec: The tab including reporting lists many options of making your reports more advanced in addition to the reporting functionality as part of the GeniE user interface. The ability to include illustrations in the report is shown here 1 min 16 sec: The importing lines part shows how you can do it and gives you also some hints on what to remember. 1 min 37 sec: The part for loads and mass explains how you can manipulate these properties. Typically how to automatically convert line loads to point masses in case you want to do a dynamic analysis. 1 min 55 sec: This tab explains how you can work with script files that will convert typically beam elements to shell elements. Also described is how to easily generate a shell cone that is typical for wind turbine supporting structures. This video show more in detail how you can convert a module from frame structure to shell structure.

https://projects.dnv.com/sesam/Genie_utils/index.html


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Importing offset tables


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Import of station offsets Excel Script file Guidecurves Skinning or cover

- Manual insert of additional guidecurves Curve/net interpolation


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Import of station offsets Copy/Mirror, Insert Aft, Insert Deck, Insert transverse BHD, Insert longitudinal BHD,

Make Compartments, Fill Compartments


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Import of station offsets Script file that reads excel and generates curves


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Import of NAPA Excel Script file Guidecurves Skinning or cover or curve/net interpolation


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Import of NAPA Script file that reads excel, generates curves and auto divide curves where knuckles


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Import of lines from DXF Can be done today by using a prootype utility tool

Ongoing development to automatically import in GeniE


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Safeguarding life, property and the environment

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genie : parametric modelling and importing of offset tables

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