Exporting Curve/Line as CSV?

[Exporting Curve/Line as CSV?]

exportCurvesPointsTocvs.cdbHi Ray, here is an example.

[enforce fixed step sizes in SBGO sampling]

Hi, I don't think the SBGO will take integer design variables. An option would be to post-process the designvariable used as a factor or the stepsize to an integer, see example attached.

testStepsInSBGO.cdb

[sceenshots in optimizations run]

I think this was a bug in an older version of CAESES, maybe you can update to the latest release?

Bests

[Exporting IGES Files while running a LHS DoE]

If you set up the script to run your analysis such that it will not return before the result file is written, everything should be fine. You could stay in the script within a loop, checking for the creation of the output file.

Best Regards,

Claus

[Exporting IGES Files while running a LHS DoE]

Hi Avishai,

Simon is travelling this week. You could set up a feature that uses a COM interface to run Maxsurf. Then you could use the software connector to start your Python analysis. If you define an output of Maxsurf as an input to the software connector and take the output of the analysis as an objective, all objects should know of their respective suppliers and wait until they are available. Then you can simply run an optimization.

Hope that helps

Claus

[Question about continuity condition in free form deformation]

If you keep two layers fixed and move the third point in line of these two first points it will still be curvature continuous. If you move it out of the line you will only maintain tangency continuity. If you keep 3 layers untouched, you will keep curvature continuity.

BTW please use CAESES 5 for your work, there is also documentation at https://docs.caeses.com

[Problems of design variables in the optimization of propeller]

HI Liuxuyang,

Did you have a look into our propeller models? If you want to share your model we can give you some advice. You can send it to info [at] friendship-systems.com.

Best Regards

[How do I create a curve from an equation?]

HI dongdongdong,

There is no real mirror in CAESES. If you want to have an object mirrored you can create a copy and add a transformation. Actually for hull shapes there is a BRep operation "addMirrored" that will do it for you and combines the two sides in one new BRep.

Best Regards

Claus

[How do I create a curve from an equation?]

HI dongdongdong,

Here is an example:

 

functions.cdb

[Rim driven type propeller blade design]

HI Shafeeh, Here is a model of a rim drive.

Best Regards

Clausrimdrive.cdb

[how to manipulate a ruled surface?]

Hej Gustaf,

Can you create a ticket in the helpdesk https://helpdesk.caeses.com/ and share your project file, please?

Looks like the parametrization is different to what you would like to achieve. The ruled surface connects the curves at the same parameter values, hence you can manipulate them by changing the parametrization, e.g. unit speed or even custom.

Cheers

Claus

[Blade Analysis for Propellers]

HI Jake, Can you send the propeller file again? I can not find it in  my archives.

[Lackenby Generalized Shifts - Parallel mid body]

Please insert a reasonable knotspacing value in the BRep and datareduction afterthe transformation. The transformation might otherwise rip the geometry apart, since it moves the control points of the vessels representation. In the flat of bottom area there might be only a few and that needs to be refined.

Cheers

Claus

[Brep or Surface trimming issues]

The reference points for the trimming did not hit the Brep. Alos,is there any reason why you took 2000 sections for the bottom surface?

TestSWAN_v2_trimmed.cdbc

[Share topology]

Jake,

Ceyhan is not in the office these days. Will take a little until he responds 😕

Best Regards

Claus

[Blade Analysis for Propellers]

Hi Jake, I received your question, unfortunately I am a bit busy theses days ... I'll come back to you.

[Spray rails parametric modeling on fast monohull design]

Hi George,

I took the liberty to reduce the number of sections for the metaSurface a little to get the performance a little better. Your chosen number might have slowed it down and potential later operations take long and might fail. 

If you select the hull Brep, you will find two sprayrail as operations. If you define a feature that has a Brep as typeProvider, and the first argument is a FBrepBase you can use that as an operation, which will make your project pretty slim.

For the Chine, I also generated a new surface as a RuledSurface from the upper edge of the metaSurface and a trimmed imageCurve of the side Brep.

Cheers

Claus

TestSWAN_v2_SR.cdbc

[Blade Analysis for Propellers]

Thanks, I have responded by email. Did you get it?

Cheers

Claus

[Blade Analysis for Propellers]

HI Jake, can you send me the step file? info@friendship-systems.com would work for that.

Cheers

Claus

[Blade Design]

Yes! We usually define normalized parametric section definitions, therefore all controls are relative to C. This does not hold for skew, rake and pitch, those inputs are blade parameters, not section parameters.

[Extract volume in batch mode]

You can write the value in a separate file if you want. If you look up the code snippet for "write file" in  the feature editor, you should get a hint how you can write a file.

[Blade Design]

Thickness is not only normalized by R but also by Chord. So it is t/c.

Best

Claus

[modeling gap problem]

For the horizontal flat parts you could just remove the surfaces and extrude the edges to the centerplane.

[modeling gap problem]

Gaps usually affect the meshing/CFD process, no matter if they are in the original or modified parts.

[modeling problem]

The model is unfortunately very bad. There are big gaps between several surfaces. I will see if I can find a repaired one.

Best Regards

Claus