Meshing failed with generateMesh "...adjusting Hmax and Hmin may resolve the problem"

Dear all,

I used generateMesh for meshing my *.stl file as attached. The message is:

Error using Meshing_hard_propeller (line 15)

Meshing failed with a Hmax of 1.000000 and a Hmin of 0.500000, adjusting Hmax and Hmin may resolve the problem.

I have change various values of Hmax but it can not run until now. The code is below:

"clc

clf

clear

model = createpde(3);

importGeometry(model,'Rigid propeller 3D builder MM fixed.stl');

generateMesh(model,'Hmax',1)

structuralmodel = createpde('structural','static-solid')

pdeplot3D(model);

axis equal;

hold on;"

Please give me your idea to debug. Thank you very much!

[George Xystouris]

Hi there!

From my experience, as an novice on 3D stuff on MATLAB:

As a first approach I'd suggest to play with either the Hmax, or Hmin - preferable not both simultaneously. I found that if you want the highest possible analysis you set the Hmax value, e.g. generateMesh(model,'Hmax',1.3), while if you want a lighter model you set the Hmin value, e.g. generateMesh(model,'Hmin',0.5).

Also, there were occasions that while MATLAB was creating a model from an imported geometry with pdegplot(model), it was unable to retrieve the mesh from the geometry.

Hope it helped :)