Variable fillet at Propeller Root

[Variable fillet at Propeller Root]

Example project attached.

varFillet.cdb

[UPDATE: Parametric Multi-Element]

Hej Christian,

 

If I understood correctly, you want to avoid donwloading large files (such as the .sim file) from the cluster.
CAESES do not need the .sim file nor a mesh. It only needs to receive the value of your evaluation variable(s). 
Make sure that the java script to your simulation export the .csv file(s) and that you download it automatically to the design directory.
Then inside your Software connector, add the result file .csv in the Result Files or Result Values, run once, get your evaluation variables and use those on the Dakota engine.

 

Best regards,

Paulo

[Tutorial for containervessel.iges]

Hi Maria,

 

The IGES file of the container vessel is used on the Shipflow tutorial, not for modelling.

 

Documentation browser -> Tutorials -> Hull Design -> SHIPFLOW CFD Analysis

 

Cheers,
Paulo

[Problems of Imported ship hulls]

Hi Favour,
 

The first thing you should do is to grou these surfaces in a "Surface Group".
Then you can extract data such as the SAC curve (check the Lackenby Variation sample file in documentaiton).

Now create an "Image Surface Group" from the surface group of surfaces you imported and apply your transformation to it.

You can also apply transformations to other CAD types such as Breps, image trimeshes and so on.

 

Good luck,
Paulo

[Can we add extra design variants on top of the existing design variants?]

 Joseph,

When you drag, you just add the variants from different optimization runs to one list of results.

If you maintain the exact same design variables, lower and upper limits, it will just generate more samples starting from index 20, for example.
Should not compromise the randomness. 

[Can we add extra design variants on top of the existing design variants?]

Hi Joseph,

From what I understood, you can run another sobol variation which the sequence start index = 20. 
This will create another window of results, but you can drag a number of designs from the left window to the previous design results table.

 

Mvh
Paulo

[Variation of a planing Hull]

It is great that you have your STL "dead geometry" from another software.

You can use it as a template to parametric re-model it in CAESES. Just follow the tutorials.

If you don't model it in CAESES you will not have parameters to vary, obviously. 

 

Another alternative is to create transformations to an image of your imported geometry. Again, follow tutorials.

 

Cheers,
Paulo

[Variation of a planing Hull]

Hi Chavan,

If by helping you mean modelling it yourself, you should start with the hull modelling tutorials. They teach exactly how to model a hull, hard chines, tangencies and so on. 
To keep the volume constant I would say it is a little more advanced, but not difficult at all. Follow the topics below to understand it better:
https://www.caeses.com/forum/index.php?/topic/307-internal-optimization-to-keep-a-volume-steady-for-each-design/

https://www.caeses.com/forum/index.php?/topic/734-constant-volume-kept-during-dakota-optimization/

The most important thing is that you need to define a parameter for CAESES to vary and find the displacement you need. 
For example, if increasing the deadrise angle, the displacement at the same draft will be smaller, so you could simply sink the vessel slightly. Or, you could vary the fullness of the chine line to compensate the lost volume. All that CAESES can solve easily. But most important is to have an idea of which parameter you will vary to reach the displacement wanted, even before modelling. 

In other hand, if you want someone to build the model for you, you should enter in contact with the friendship system team and discuss with them. 
I recommend you try to model it by yourself, come back to this topic, upload your files and problems as many times as you need to finish your project.

 

You can always look for pre-built models and project examples in the search field in the upper right corner and in the documentation inside CAESES.

 

Cheers,
Paulo

[ShipX CAESES connection]

Hi Alex,

I have worked with a batch version of Veres and it works just fine. It is not very simple to transfer all the date to the file format of veres, but it is possible.

I recommend you to run a simulation in ShipX, get the input and result files from the run folder and dig it out.
You will need to generate sections, bilge keel, rolling tanks and so on. 

For the vepost (post-processing), things are simpler but the batch version doesn't have all functionality. So, for example, I have made functions in CAESES to plot RAOS and operational limits, a custom post-processor.

Unfortunately I cannot provide you any file or example, but if you get in contact with Sintef ocean they should be able to explain any doubt that you might have.

 

Cheers,
Paulo

[Rename objects in a feature]

Another option is to use an entitygroup to store your curve with the name you want. 
Then when accessing the entity group you can check for the name of the object with an if statement and get all the information from the curve.

 

Paulo

[Drop-down menu]

Hi Jøerg,

Yes, but in my case I am selecting a list of strings and I would like to have it inside the feature definition itself (like a database).

Any other ideas?

 

Paulo

[Drop-down menu]

Hi guys,

I wonder how to create a drop-down list/menu (like in validation from the data menu in Excel) for input to a FFeature.
That way I can limit the alternatives of input for another users and make it very clear what is chosen.
I don't recall seeing it in demo-features. Let me know if it is possible.

Cheers,
Paulo