boundary conditions in cosmosworks.
boundary conditions in cosmosworks.
(OP)
Hi Everybody,
i have a down-to-earth problem but could not find the solution.
i am doing the frequency analysis of an optics table, basically made of two granite legs and a granite top. in use, the legs will be resting on the ground without any fixing but restrained in position. the table top will also rest on the legs by gravity without any fixing.
the problem is, in cosmosworks, i am not able to provide 'simply supported' boundary condition. the model is meshed with solid elements and whenever 'no ranslation' is provided it is basically conveted to fixed BC. can this problem be solved in cosmosworks or i am doing some gross mistake?
thanks in advance for any help.
i have a down-to-earth problem but could not find the solution.
i am doing the frequency analysis of an optics table, basically made of two granite legs and a granite top. in use, the legs will be resting on the ground without any fixing but restrained in position. the table top will also rest on the legs by gravity without any fixing.
the problem is, in cosmosworks, i am not able to provide 'simply supported' boundary condition. the model is meshed with solid elements and whenever 'no ranslation' is provided it is basically conveted to fixed BC. can this problem be solved in cosmosworks or i am doing some gross mistake?
thanks in advance for any help.






RE: boundary conditions in cosmosworks.
Another approach is to put a small cylindrical form on the bottom of the leg.
The intersection of the legs and the table are another problem. Here the model will need a contact set or a very soft spring between the legs and the table. If this isn't done the model will bond them. If this weren't the case the deformation would occur without bounds and the calculation of the natural frequency cannot be done.
Hope this helps
RE: boundary conditions in cosmosworks.