I've recently started using Mechanica (wildfire 4.0) for prelimanary analyses, instead of ANSYS. Just to verify results, I am running a modal analysis on a cylinder to get displacement distribution along the length of the cylinder.
I get results, and they match my calculations. Now I want to plot a displacement graph; Y-axis showing displacement, and X-axis showing length of cylinder. To get that, what I know, I need to define a line through or on the cylinder. I have tried making a sketch line, datum line, and even axis, through the center of cylinder, but Mechanica doesnt let me choose that line for graph. I guess because that line is not a part of cylinder, but an arbitrary sketch.
My question: Is there a way to do this? How can I get a line displacement plot along the length of cylinder?
After you sketch the line in the model, you need to make the line a hard curve in Mechanica using the AutoGEM hard curve control. You should be able to plot along the line once you do that.
Thanks for the reply Eduardo.
So this is what I did. I defined a sketch line in cylinder. Then
AutoGEM > Control > Edge Distribution (Selected line, and defined number of nodes).
Ran simulation, got results. After checking a specific mode, selected Graph in Display Type, and in Graph Location selected Curve. This time I was able to select that Hard line. After clickign Ok and Show, I get this error:
'None of the selected result windows can be shown'.
Where'd I mess up?
My mistake. I missed the fact that you were using WF4. The AutoGEM hard curve control wasn't available till WF5. At this point, I can't think of anything that you could do in WF4 that will serve your purpose. Sorry for the mistake.
Try creating a volume region in Mechanica that splits your shaft along its axis into two equal volumes. You can then select the edge/curve created by this volume region as your plot curve. If you're working with a hollow shaft, you will have 4 curves that you can choose. If it is a solid shaft, you will have 2 curves.
Yes, I already tried that. Increases solution time, and becomes more complicated in complex geometry. But you are right, this is the best solution so far.