gwildavies
Bioengineer
- Jan 6, 2012
- 2
Dear All,
I have a little experience with COSMOSWorks and have had good results in the past with simple models, but have come up against a problem which I now need to solve:
I'd like to induce a kink in a ribbed tube by compressing it between two small surfaces.
My technique was to draw the ribbed tube, then create two extruded bosses from remote planes, extruded up to the ribs to act as a Restraint and a Load. This gives a solid part that looks reasonable, here:
,
but when put through the simulation gives very strange results, perhaps because it acts as one solid body, image here:
Somehow the extruded bosses have moved 'inside' the ribs, perhaps like a potato through a slicer. This is very strange and not at all desired.
Is there a better way to model this kind of situation? I have looked for tutorials but have been unable to find any applicable.
If somebody could point me in the right direction or walk me through the concept I am missing (is there a better way than modelling the actual force blocks?) it would be very much appreciated.
best wishes,
Gwilym
Attached is the model I have been playing with, though of course I do not expect it to be done for me!
COSMOSWorks 2008 on SolidWorks 2008, Windows 7
I have a little experience with COSMOSWorks and have had good results in the past with simple models, but have come up against a problem which I now need to solve:
I'd like to induce a kink in a ribbed tube by compressing it between two small surfaces.
My technique was to draw the ribbed tube, then create two extruded bosses from remote planes, extruded up to the ribs to act as a Restraint and a Load. This gives a solid part that looks reasonable, here:
but when put through the simulation gives very strange results, perhaps because it acts as one solid body, image here:
Somehow the extruded bosses have moved 'inside' the ribs, perhaps like a potato through a slicer. This is very strange and not at all desired.
Is there a better way to model this kind of situation? I have looked for tutorials but have been unable to find any applicable.
If somebody could point me in the right direction or walk me through the concept I am missing (is there a better way than modelling the actual force blocks?) it would be very much appreciated.
best wishes,
Gwilym
Attached is the model I have been playing with, though of course I do not expect it to be done for me!
COSMOSWorks 2008 on SolidWorks 2008, Windows 7