General Mechanical

General Mechanical

ANSYS restart analysis is getting slower

    • kai.zhang
      Subscriber

      Hi,

      I am running ANSYS APDL restart analysis since I would like to change the element properties after every simulation step. But the problem is that the ANSYS APDL restart analysis is getting slower and slower. For example, the first 100 restart analyses took 10 minites, but after 500 restart analyses, it may took 1 hour for the next 100 restart analyses. Is there any solutions to solve this problem ? To keep the same computation speed as the restart analysis proceeds ?

      Many thanks

    • kai.zhang
      Subscriber
      Anyone can help ? I am really suffered from this problem for long time
    • Chandra Sekaran
      Ansys Employee
      Can you elaborate. When you say that the restarts are getting slower are you saying the N-R iterations at restart#1 is much faster than N-R iteration in restart#500 i.e. the solve time for each iteration is much longer? Also is the 1st restart taking same number of iterations to converge as the 500th restart? Not sure what type of nonlinearities you have.
Viewing 2 reply threads
  • You must be logged in to reply to this topic.