{"id":355433,"date":"2024-03-05T16:44:22","date_gmt":"2024-03-05T16:44:22","guid":{"rendered":"\/forum\/forums\/topic\/force-analysis-in-static-analysis\/"},"modified":"2024-03-05T16:44:22","modified_gmt":"2024-03-05T16:44:22","slug":"force-analysis-in-static-analysis","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/force-analysis-in-static-analysis\/","title":{"rendered":"Force Analysis in Static Analysis"},"content":{"rendered":"
Hi all.<\/div>\n
I’m a little confused.<\/div>\n
I’m doing a calculation of two cylinders, where one moves inside the other (it has protrusions, with which it touches the outer cylinder). I apply force to the inner cylinder, with this force it will stop on the sides.<\/div>\n
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 <\/div>\n
I set the force on the end of the cylinder, but the problem is not solved, no matter what contact there is (any settings) and even if I set 100N, the calculation still ends in error and time goes backwards. I also tried grinding the mesh, but that didn’t help.<\/div>\n
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 <\/div>\n
But if, under the same conditions, I use displacement at the same end of the cylinder, the calculation works perfectly. Why?<\/div>\n
What important factors need to be taken into account in order for the calculation with force to end successfully?<\/div>\n
 <\/div>\n
I also tried using light springs, this helps for a while, but then the error occurs again, the load of 22 tons is very high and the springs fail:<\/div>\n
<\/div>\n
<\/div>\n
 <\/div>\n
I can’t apply symmetry, because then I will need to bend the entire structure radially from the center by 1 degree and also move the inner cylinder by force.<\/div>\n","protected":false},"template":"","class_list":["post-355433","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t