Free DeformationBulbousBow

[Free DeformationBulbousBow]

Hi Ceyhan,

 Thanks for replying me.

bulbousbow_trial.fdb

[How to export STL file (trimesh) with meshing entity]

ok

retroHULL_BuB_1v_1q.fdb

[Free DeformationBulbousBow]

Hi every professional,

 

First of all, I would like to ask about why I did the same practice from freedeformation tutorial to obtain

the optimum angle of rotation for my ship's bulbous bow but it fail to do deformation of bulbous bow in my ship model.

Why this condition will happen (as shown in picture) and anyone knew the way to solve this problem?

Your help is highly appreciate for me, thank you.

 

Sincerely,

Ms Daphne. 

 

[How to export STL file (trimesh) with meshing entity]

Hi Carsten,

 

First of all, thanks for replying me.

I already follow the step which show in the video " How to export a geometry"

when I choose the selected trimesh after optimised to export but the whole geometry before and after optimised export together and cause the geometry overlap and even burst already.

In fact, I only want to export the selected part. 

Mr Carsten why this condition will happen? 

 

Sincerely,

Ms Daphne

[How to export STL file (trimesh) with meshing entity]

Dear Mr/ Mrs

 

First of all, I would like to ask professional " How to export selected STL file with meshing".

Because i try to select export and choose the type to select and finally export a burst file which unable to read in another CFD software.

Anyone know the solution for this problem and provide the guidance for me?

Thanks for your convience and help.

 

Sincerely,

Daphne 

 

[How to export selected object]

Hi Mr Daehwan

 

I am interested in this project (hull form optimisation finnish swedish ice class) that created by Mr. Daehwan. 

 

Can you provide me the caeses fdb project file and also microsoft excel information data?

 

I want to do further research based on this title

 

If you willing to, can you send the caeses project file and also its microsoft excel information data (engine output calculation) for me via my email below

 

daphnexin.96@gmail.com

 

Thank you Mr Daehwan, I hope you can help me 

 

By

Daphne

hullform_-opt_finnish_swedish_ice_class_rule.pdf

[How to export selected object]

Hi Mr Daehwan 

 

Thanks for helping me

 

But i want to export trimeshes into iges or parasolid(x.t) format.

 

Is there any other possible way to export it because i want to run CFD into Numeca Fine Marine Software to determine their total resistance

 

By

Daphne

[How to export selected object]

Hi everyone

 

Does anyone know how to solve this problem and provide some guidance for me.

How to export only selected object (green part) after optimised in a project but not export whole project in iges format?

Your kindness that i really appreciated, please help me . Thank you everyone

 

By 

Daphne

[How to do optimization of bulbous bow based on tip length, angle of rotation, and also width of bulbous bow of tanker ship]

Hi Mr & Mrs professional

 

Sorry to interrupt everyone again.

 

1.   When I did free form deformation bulb, why the result of bow deformation not same as the tutorial that i practiced, i followed step by step the tutorial freefromdeformation bulbs but fail to figure out the problem.

 

I lack of knowledge about the free form deformation could you provide me some extra knowledge about deformation of bulbous bow

 

2.   Another day i able to solve this problem as shown above but for the rotate deformation fail to do variation angle of rotation of bulbous bow, why this condition happened?

 

By

Daphne 

[How to do optimization of bulbous bow based on tip length, angle of rotation, and also width of bulbous bow of tanker ship]

Hi Mr Daehwan 

 

Thanks for helping me

 

1. I now faced the problem which i cannot drag&drop brep object as source for image curve for new hull, hull variation and also x-end forforebody delta curve (lackenbyshift)

Is there any possible way to solve this problem, Mr. Daehwan?.

 

2. How to re-set the position value for my ship model?

Can you guide me the procedure to re-set the position values of my ship model for lackenbyshift purpose?

 

By Daphne

[How to do optimization of bulbous bow based on tip length, angle of rotation, and also width of bulbous bow of tanker ship]

Hi Mr Daehwan

 

Thanks for helping me.

 

I already assembled all surfaces in a one brep, when i doing hydrostatic calculation in creating section group , the brep i put as source but only one section been carried out.

 

The results of computation all become zero undefined.

 

The way i did hydrostatic calculation followed the tutorial.

 

Mr. can you guide me the way to solve this problem? Thank you

 

By 

Daphne.

[How to do optimization of bulbous bow based on tip length, angle of rotation, and also width of bulbous bow of tanker ship]

Hi Mr Daehwan

 

Again, thanks for your help 

 

For assembled different NurbSurfaces into a one NurbSurface, I applied the same assembly method like previous brep parts but still unable to assembly into a one NurbSurface. First I select all NurbSurfaces and then i create a new nurbsurface, but in new nurbsurface only one nurbsurface been selected, why does this happened?

 

Can you guide me the way to assembled different NurbSurface into a one NurbSurface for hull variation, hydrostatic calculation and also lackenbyshift purposes?

 

By

Daphne

[How to do optimization of bulbous bow based on tip length, angle of rotation, and also width of bulbous bow of tanker ship]

Hi Mr Daehwan

 

First of all, thank you for helping me in solving problem.

 

However, once i assembled in a one brep, it overlap with old brep parts and i try to delete old brep parts one by one and then whole ship model dissapear.

 

1. How to solve this problem and i just want to keep the assembled brep one only?

2. How to assembled FNurbCurve? 

 

By

Daphne

[How to do optimization of bulbous bow based on tip length, angle of rotation, and also width of bulbous bow of tanker ship]

Hi Mr. Daehwan

 

Thanks for your help

 

Btw, i dunno how to assembled in one Brep, can you guide me the way to do it ?

 

And the one that i show you was imported iges format file. (For example the iges file that used in tutorial "containervesel.iges'')

 

By

Daphne

[MetaSurface -> NURBSsurface]

Hi Mr & Mrs

 

Sorry to interrupt that I have one question

 

 

Does any efficient way provides to change the import geometry in FBrepPart into FNurbSurface for hydrostatic calculation, hull variation and also lackenbyshift purposes?

[How to do optimization of bulbous bow based on tip length, angle of rotation, and also width of bulbous bow of tanker ship]

Hi Mr & Mrs

 

Sorry to interrupt that I have one question

 

 

Does any efficient way provides to change the import geometry in FBrepPart into FNurbSurface for hydrostatic calculation, hull variation and also lackenbyshift purposes?

 

[How to do optimization of bulbous bow based on tip length, angle of rotation, and also width of bulbous bow of tanker ship]

Hi Mr. Daehwan

 

Thanks for helping me

It refer to the article share by Mr. Daehwan 

For bulbous bow modeling, it would be good to refer the article below. 

 

https://www.caeses.com/forum/index.php?/topic/315-bulbous-bow-shape-analysis/

 

For the fdf file via this article above which are bulbous bow section and also shape analysis bulbous bow

This is because my computer unable to read in fdf file.

Can you guide me the way to import fdf file in caeses software? Or make these fdf file in feature tool Caeses

 

Thank you for your help :)

 

by Daphne

[How to do optimization of bulbous bow based on tip length, angle of rotation, and also width of bulbous bow of tanker ship]

Hi Mr & Mrs

sorry for interrupt that i unable to export or import fdf file into caeses software,. Is there any possible step to open fdf file in caeses software ?

Thank you

[How to do optimization of bulbous bow based on tip length, angle of rotation, and also width of bulbous bow of tanker ship]

Hi Mr. Daehwan

 

Thanks for your help !

[How to do optimization of bulbous bow based on tip length, angle of rotation, and also width of bulbous bow of tanker ship]

Can anyone kindly provide me guidance or step by step to do the optimization based on bulbous bow exactly like shown in the picture?

Thank you for helps.

by Daphne :)

[How to do optimization of bulbous bow based on tip length, angle of rotation, and also width of bulbous bow of tanker ship]

Secondly, please provide me some guidance about the way to do optimization hull form of ship towards reducing ship resistance using CAESES software.

 

Your help is highly appreciated to me.

Thank you

 

Best regards,

Daphne

[How to do optimization of bulbous bow based on tip length, angle of rotation, and also width of bulbous bow of tanker ship]

I am newbie Caeses software user. Please provide me some useful guidance for me. Thank you very much

Cheers,

Daphne