Im trying to model a rotating uniform beam for 12 rotational speeds in Abaqus using c3d20 elements. As expected, "step 1 to step 5" the frequencies increase as the rotational speed is increased. However, for some strange reason, the frequencies stop varying from the fifth speed. I do get warning messages when running the input file but i cant intepret them well since Im new to Abaqus.
I believe the problem is elementary but i cant figure it out. Can anyone review or run the attached input file to let me know what I am not doing or what exactly is wrong.
Many thanks.
D Jackson
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| IMECHANICAc3d20r0203.doc | 64.5 KB |