-
-
August 20, 2021 at 7:03 am
ReadyDieFurkan
SubscriberHow can I do non-linear analysis with inertia relief turned on on Ansys?
-
August 24, 2021 at 12:26 am
Ashish Khemka
Forum Moderator
You can do a non-linear analysis with inertia relief turned on. Please refer to the link below:
14.2. Inertia Relief (ansys.com)
Regards Ashish Khemka
-
August 24, 2021 at 8:51 am
ReadyDieFurkan
SubscriberI'm looking
-
August 24, 2021 at 11:17 am
ReadyDieFurkan
Subscriber,I actually checked out the 14.2 section for inertia relief but the topic is very lengthy. There were some points present there which said that these are the limitations for inertia relief to be used in ANSYS, and one of them was that non-linear analysis cannot be used with inertia relief turned ON. Other than that, I couldn't find anything which said that still inertia relief turned ON can be used together with non-linear analysis. If you can write down that specific section from 14.2 here, that could help :)
-
August 24, 2021 at 1:18 pm
Ashish Khemka
Forum Moderator
14.2.2.2. Nonlinear Static Analysis
For a nonlinear static analysis, the first step is to calculateinertia reliefacceleration (Equation14ÔÇô27) on the original geometry based on structural density at the beginning of the substep of a load step byEquation14ÔÇô8. The nonlinear equation to be solved (similar toEquation14ÔÇô16) is:
The nonlinearEquation14ÔÇô28is solved by Newton-Raphson iterative procedure as previously described. The nonlinearity can be material or large deformation (NLGEOM,ON) nonlinearity. In the case ofNLGEOM,ON, the inertia force term
is re-calculated at every substep to reflect the effects of updated geometry by:
Regards Ashish Khemka
-
September 2, 2021 at 4:54 pm
ReadyDieFurkan
SubscriberI don't quite understand, can you explain in more detail? I beg you -
September 3, 2021 at 11:29 am
Ashish Khemka
Forum Moderator
My apologies, if the previous post did not help you. But you can have two types of non-linearities one is material non-linearity (i.e. having non-linear material models defined under Engineering Data) and other is geometrical non-linearity with Large Deflections turned on and the stiffness matrix is updated during the solution.
Regards Ashish Khemka
-
September 3, 2021 at 12:09 pm
ReadyDieFurkan
SubscriberI couldn't understand the previous post. Could you explain your previous post in more detail and solve an example?
-
September 5, 2021 at 10:36 pm
-
September 6, 2021 at 4:47 am
ReadyDieFurkan
SubscriberYes, don't work. I'm looking for another method
-
September 6, 2021 at 10:25 am
Ashish Khemka
Forum Moderator,
Let me check the same.
Regards Ashish Khemka
-
September 6, 2021 at 10:33 am
ReadyDieFurkan
SubscriberPlease help if there is another solution?
-
September 6, 2021 at 10:56 am
Ashish Khemka
Forum Moderator
Both cannot be used simultaneously (NLGEOM,ON) and Inertia Relief.
14.2. Inertia Relief (ansys.com)
Regards Ashish Khemka
-
September 6, 2021 at 4:17 pm
peteroznewman
Subscriber -
September 6, 2021 at 5:36 pm
Rameez_ul_Haq
Subscriber,can you also show what the force reactions are when you turn ON the Inertia Relief, and then OFF? Since the forces are getting balanced by the inertia forces of the body, I don't think that we should be expecting any reaction forces in the case when Inertia relief is turned OFF.
-
September 6, 2021 at 5:46 pm
peteroznewman
SubscriberThe reaction forces are numerically zero in all three models compared to the applied force of 314 N.
J: Inertia Relief On Reaction, Force (X) = 1.279e-13 N
K: Inertia Relief Off Reaction, Force (X) = 1.2079e-13 N
-
March 29, 2023 at 6:20 am
Akhilesh Agarthade
SubscriberIn model J, remote displacement is used along with inertia relief. What DOF it is constrained? But we should not use any constraints for inertia relief, right?
In model K, all 3 that is Acceleration, Force, and remote displacement used then how it is comparable with model J?
-
Viewing 16 reply threads
- The topic ‘How can I do non-linear analysis with inertia relief turned on on Ansys?’ is closed to new replies.
Ansys Innovation Space
Trending discussions
- Shape Memory Alloy Deployment
- Correct Material Definition
- Get ultimate strength value from simulation
- Softening Issues in Reinforced Concrete
- Material Designer – Material Assignment
- Error on Material Designer, One or more errors occurred.
- Material Designer, Different warp and weft shares in woven RVE
- how to use Plastic material property of steel only
- Hydrogen Simulations
- Is there a simple data base of electronic parts, motors, resistors etc.
Top Contributors
-
2773
-
965
-
841
-
599
-
591
Top Rated Tags
© 2025 Copyright ANSYS, Inc. All rights reserved.
Ansys does not support the usage of unauthorized Ansys software. Please visit www.ansys.com to obtain an official distribution.