Centrifugal Analysis of a Propeller

[AbdulQayyum987]

I was analyzing the centrifugal forces exerted from a propeller which I have assigned it to rotate along the z-axis at 100rps. Got a fatal error when I started running the analysis. Now, do I have to put constraints for this problem?

 

[karachun]

@AbdulQayyum987 no, I`m not tech support and not provide help via email. If you have questions - post them on this forum.

 

[AbdulQayyum987]

Do you know of any tool that I can use to copy this curve and paste it slightly underneath it? Reason is I want to create better elements on the leading edge of the prop. The Geom. Editing tool I am using won't be able to do this, it didn't follow the curvature of the highlighted curve.

 

[AbdulQayyum987]

These are one of the results form successfully running the above analysis. Thank you guys especially @karachun for your wonderful tips in meshing. It help me run without getting stuck by fatal errors. I utilized the geom. preparation tool before creating 2D elements. Doing this step saved me a lot of time without the need to repair any short curves, slivers, bad angled curves manually.


[URL unfurl="true"]https://res.cloudinary.com/engineering-com/image/upload/v1575506347/tips/Case_A_Contour_Deformed_zq0pli.bmp[/url]

[URL unfurl="true"]https://res.cloudinary.com/engineering-com/image/upload/v1575506700/tips/Case_A_Contour_Deformed_view_back_d1edru.bmp[/url]

[URL unfurl="true"]https://res.cloudinary.com/engineering-com/image/upload/v1575506715/tips/Case_C_Contour_Deformed_view_1_gn5boc.bmp[/url]

 

[karachun]

geom. preparation tool was @TG_eng idea
1. Use Geometry->Solid->Slice and slice propeller by plane into 4-5 parts.

2. Run Modify->Break at location and break curves near propeller edge. Use Methods->Along curve or Length Along.

3. Use Meshing toolbox->geometry editing->Point to point to slice surfaces.

4. Now you extract surfaces at blade edge and can refine them - set small mesh size compared to propeller global mesh.

Repeat steps for all propeller parts.
Then you can merge mesh nodes (if they are coincident) or glue propeller parts together.