Forces varying with time?
Forces varying with time?
(OP)
Hello,
I am trying to learn Creo Simulate 2.0 and having a hard time applying time varying forces.
I want to have forces something like this:
Force1: 50N from 0 to 0.5sec
Force1: 100N from 0.5 to 1.2sec
Force2: linearly increasing from 200 to 250N from 1 to 2 sec
Simulate does not show any information on how the forces are applied over the timeline of the analysis for linear as well as non-linear analysis.
Am I missing something or Simulate does not have this functionality?
I am trying to learn Creo Simulate 2.0 and having a hard time applying time varying forces.
I want to have forces something like this:
Force1: 50N from 0 to 0.5sec
Force1: 100N from 0.5 to 1.2sec
Force2: linearly increasing from 200 to 250N from 1 to 2 sec
Simulate does not show any information on how the forces are applied over the timeline of the analysis for linear as well as non-linear analysis.
Am I missing something or Simulate does not have this functionality?





RE: Forces varying with time?
RE: Forces varying with time?
Also the non-linear solver hardly converges for me.
Initially I tried making the mesh finer, this resulted in getting lower values for the residual. However at the last step it used to fail to converge.
I also tried taking smaller time steps like 4.0, 4.1, 4.2, etc. but it used to take a long time and then fail. So I started taking much smaller time steps like 4.12, 4.14, 4.16, etc. This seemed to improve the residual but the solution could not converge.
Can you tell me which parameters I should fiddle with so that the solution converges?
RE: Forces varying with time?
You can then choose whether you want to use the large deformations (nonlinear geometry) solver or not. You'll notice now that the loads have a time dependence button next to them.
For a true linear *static* analysis (or linear perturbation analysis - I used to work at HKS/Abaqus so forgive me for not knowing the ANSYS terminology) there is no "t" term, so functions of time to vary loads make no sense.
RE: Forces varying with time?