Recent content by prym

What result from mechanica can I compare to Hertz contact stress?

Hello I am trying to analyze just 3 rollers and inner ring having 3 contacts set in the same way and there is a worning that: 1. Contact is not possible for Contact: 360262 Contact is not possible for Contact: 360264 One or more contacts in the model will have no effect because...

I have just noticed that non-linear box is unticked and contact box as well! Since I have got them 'on' there is no more mesh problem

And assembly filehttp://files.engineering.com/getfile.aspx?folder=166e72fa-eda0-47e7-a439-5c3e4183ae31&file=ball_pipe.zip

I am trying to analyze the same think but using very simple assembly and there is the same issue of course Could please have a look on that assembly and check it what is wrong, it always shows the same error like on the attached picture Could please set it up correctly so I would know for future...

Hello what is accuracy you are using? I was trying to mesh it seperetly and also with course and fine mesh and it still shows the same problem. I have got warning 'Non-coincident surfaces could not be split in Native mode. Source: Geometry' - what is this about? I will attache that file later?

Hello I have created about 200000 elements and there is still fatal error showing mesh problem and 'The design study terminated abnormally' I have done different one before and it works ok except this one What is the problem?

Hello I have done simple tutorial, pin and disc with interference. Pin is constrained on the ends, zero load was applied to disc. It always shows constrain error and mesh problem Can anybody have a look and tell me what is wrong?

There is 11 rollers, and using symmetry constraint we can see 5 of them so these 5 are in the contact with inner and outer race (so I have got 10 interface contacts) I must be doing some big mistake because my any analyse with contact end up with the same fatal error and the same note. EX. two...

I have removed the rotation constrain but there is still the same error? Should I constrain rollers?

Hello Yes the contacts has been set up between each roller but only on one side of the bearing Please have look on my tree (attached picture)http://files.engineering.com/getfile.aspx?folder=e73a0548-3418-43b4-a83a-f9d0ccb1cc56&file=tree.png

Hi I applied symmetry constraint on the outer race also but I just did not show it I will remove rotation constrain

And PDFhttp://files.engineering.com/getfile.aspx?folder=b322886d-ee38-4aaa-ac4b-b6d7953c4b7c&file=bearing.pdf

Hello The assembly finished with fatal error - I had to forget something Could you have look - belowe is the messange and attached pdf (explaining what I did) Fatal Error; Run Terminated Wed Apr 28, 2010 14:57:48 The model is insufficiently constrained for the analysis. Please review the...

Hello PetieSmo Many thx for reply I will be trying to analyze contact behaviour and only in static mode, applying axial and radial forces and case hardened groove surface. I have got few more advanced cases with balls but first I need to understand how to analyze simple radial or thrust...