I was wondering,
is it a better thing to use theta as my parameter (using parametric solver) to simultae the rotation of the roller around the blade or should I include this relation of movement in an equation (with the movement in z for example) and, instead of theta, use the contact...
Hi,
as I said, I tried to start it all over, changing the parameters I wasn't so sure last week but I don't see any difference. I'm pretty sure my problem is on the contact parameters definition but I don't know where to go with this. I changed the CAD to keep only the blade I'm interested...
Thanks a lot...
I need to "disconnect" a little bit of this problem during the week-end. Monday, I'll just do another check up, maybe starting over with only the blade I'm interested in.
I'll give you more details on time.
I think I can solve but I get no result. The solver indicates that the computation is finished but I get 81 warnings of type :
Inverted mesh element near coordinates (...,...,...)
with the coordinates instead of ...
What could this mean? Mesh not fine enough (can't go finer, doesn't...
I've tried almost all the solvers, using the same parameters.
There had been some developments 'till your last post. With coarser mesh I was able to solve the problem (with some warnings) for the first value of my parameter (theta). There was no convergence and the solver didn't pass to the...
That's a fact, the roller is splitted in 4 sections but I don't really know if the roller is going to turn on himslef. The reason is because I didn't see where I could force the roller to rotate or no.
The parameter varying is theta (to force the roller to follow the path which is a function...
I've made a Pair with the blade surface and the roller surface that have to "touch" each other. Basically, I didn't applied any force on the roller, I wanted to test the path and make the roller follow the surface. The condition between both surface is frictionless. Should I apply a force...
Here's the print screen.
I constrained the impeller and rotate the roller (wich is the same thing as rotating the impeller and constraining the roller, as long as one do the movement).
Oh sorry!
in the mesh (normal free mesh) there's 43000 elements 11100 points and 260000 DOF.
By the way, I'm not able to define different mesh sizes for specific boundaries, even in Free Mesh Parameters.
Around 250 nodes (points), 400 lines (edges), 150 surfaces (boundaries). I tried the defeaturing tool : I was able to delete some parts but there's still a lot I can't and that are useless for the modelisation.
Thank you
Hi everyone,
I'm doing an analysis with Comsol on an Impeller. Shortly, it is a roller (cylinder) that applied a pressure on a blade (shape of an helix with variable pitch; I have the equation of the bade) at a specific radius to deform it.
I've done my assembly in Catia (impeller and...