How to Use nonlinear Inertia Relief in ANSYS Workbench Mechanical

- August 20, 2021 at 5:46 am
  
  ReadyDieFurkan
  Subscriber
- August 20, 2021 at 7:27 am
  
  ErKo
  Ansys Employee
  
  HI
  In the latest release (2021 R2), the documentation says that it can be used for both linear and nonlinear analysis.
  (SO it should be possible in 2021 R2)
  Search for 14.2 Interia relief, and under the theory reference in the 2021 R2, for more info.
  
  Thank you
  
  Erik
- August 20, 2021 at 7:55 am
  
  ReadyDieFurkan
  Subscriber
  
  hi I using ansys 2021 R1. Is it possible to fix the problem with this version?
- August 20, 2021 at 10:02 am
  
  ErKo
  Ansys Employee
  
  Hi
  
  Check the 2021 R1 help manual, and the section I mentioned and check under limitations (it is not possible to do this in 2021 R1, only in 2021 R2 and onwards I believe - please check the limitations as mentioned).
  
  Erik
- August 20, 2021 at 11:09 am
  
  ReadyDieFurkan
  Subscriber
  
  I checked but unfortunately couldn't find it. Can we do this with a different analysis method?
- August 20, 2021 at 11:15 am
  
  ErKo
  Ansys Employee
  
  Well, you did not check properly. Chapter 14.2 Inertia relief in the help manal (Theory Reference part).
  
  As we said inertia relief can only be used from 2021 R2 and onwards.
  
  Can you please explain what you mean with this in the your message above, and with a different analysis method. It is not really clear so please explain what you want to do, but if it is inertia relief in a nonlinear analysis (large deflections), as we said it can only be done in/from 2021 R2.
  Thank you
  
  Erik
- August 20, 2021 at 11:22 am
  
  ReadyDieFurkan
  Subscriber
  
  okey, thanks you
- August 20, 2021 at 11:45 am
  
  ErKo
  Ansys Employee
  
  actually I am not sure it even works in 2021 R2 :) - sorry about the confusion.
  
  Need to investigate a bit more to see if it is possible.
  
  All the best
  
  Erik
- August 21, 2021 at 8:14 am
  
  ReadyDieFurkan
  Subscriber
  
  ,can you please give me a general idea that why inertia relief is only possible with the linear analysis and not non-linear? I checked the section 14.2 and it just mentions the inertia relief limintaions there but the reason is still unkown to me.
  I mean what kind of non-linearity cannot be used with inertia relief? Frictional, geometric and material non-linearity, all of these will not permit me to use inertia relief with it together in the analysis?
- August 23, 2021 at 5:58 am
  
  ReadyDieFurkan
  Subscriber
  
  can you please give me a general idea that why inertia relief is only possible with the linear analysis and not non-linear? I checked the section 14.2 and it just mentions the inertia relief limintaions there but the reason is still unkown to me.
  I mean what kind of non-linearity cannot be used with inertia relief? Frictional, geometric and material non-linearity, all of these will not permit me to use inertia relief with it together in the analysis?
  Did this answer the question?
- August 23, 2021 at 6:47 am
  
  ErKo
  Ansys Employee
  
  Hi
  Unfortunately it is not clear to me either so I can not help (perhaps someone else can) - what I would recommend is to use inertia relief with linear analysis - inertia relief was say applied for free floating structures, e.g., in ship strength analysis (global analysis of a ship) and it is then used with linear solvers.
  
  All the best
  
  Erik
- August 23, 2021 at 7:00 am
  
  ReadyDieFurkan
  Subscriber
  
  Hmm okey If you have new ideas, I'll be here.
  Thanks You
  Furkan