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SOL 112 rotor dynamics modal transient analysis troubleshooting

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RRDavid

Aerospace
Joined
Oct 16, 2019
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4
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AT
Currently i'm strugling to understand the know-how behind the SOL112 solution combined with rotor dynamics.

I sat up a laval rotor simulation (which gives great results in sol 110) to analyse it's transient motion when running through it's critical speed. However the solution with my current setup diverges. To base of this simulation is the example files attached to the NX 12.2 setup starting with rtr_mtran*.



i've attached the dat file of the simulation.



regards,

David
 
 https://files.engineering.com/getfile.aspx?folder=8b46a658-d729-4a30-8923-ea466afd3fdf&file=m1_sim1-sol112_modal_transient_g0.06.dat
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