I want to make a simulation for 400 time steps, how can I give in Ansys Workbench?
To enable auto time stepping in ANSYS Workbench, follow these steps:
1. Set up your Analysis System: Create or import your geometry and define the necessary materials, properties, and boundary conditions for your model.
2. Insert a Solution Component System (SCS): In Workbench, right-click on the Analysis Systems cell and select "Insert" > "Solution Component System" to add a new SCS.
3. Add a Transient Structural Analysis: Right-click on the SCS cell and select "Add Transient Structural" to add a transient structural analysis component to the system.
4. Set the Analysis Settings: Double-click on the Transient Structural system cell to open the Analysis Settings. Here, you can specify the analysis type, time settings, and other relevant options.
5. Define the Time Step Controls: In the Analysis Settings window, go to the "Time" tab. Under the "Controls" section, select "Auto Time Stepping" to enable automatic time stepping.
6. Configure the Time Step Controls: After enabling auto time stepping, you can adjust the settings according to your requirements. The available options may include:
a. Maximum Time Step Size: Specify the maximum allowable time step size for the analysis. ANSYS will automatically adjust the time step based on the model's dynamic behavior and this maximum value.
b. Minimum Time Step Size: Set the minimum time step size that ANSYS will use. This value helps to prevent the time step from becoming too small, which can lead to excessive computational time.
c. Safety Factor: Define a safety factor to ensure stability and accuracy. ANSYS may decrease the time step if the calculated time step size exceeds the maximum time step size by this safety factor.
d. Maximum Substeps per Time Step: Specify the maximum number of substeps allowed per time step. ANSYS may increase the number of substeps within a time step if necessary to capture highly nonlinear behavior.
7. Start the Analysis: Once you have configured the time step controls and other relevant settings, close the Analysis Settings window and proceed to solve the model. ANSYS will automatically adjust the time step size during the analysis based on the model's behavior and the specified controls.
By enabling auto time stepping, ANSYS will dynamically adjust the time step size during the analysis to ensure accuracy and stability. This feature is particularly useful for simulations involving complex or nonlinear behavior where the time step requirements may vary significantly throughout the analysis.
Dear Gopal Sharma,
Thank you very much for your answer.
But I still have a doubt about the how to give initial, minimum and maximum steps in analysis settings, how to make these.
Kind regards
Chandra Sekhar Narra
Auto Time stepping in Ansys Workbench can be used by switching the Time Dependent defines to “Multiple Steps” or “Adaptive”. Once this is done, additional settings can be adjusted such as Initial Step, Maximum Step, Maximum Number of Steps, Time Increase Factor, and Time Decrease Factor. These settings will affect the frequency and accuracy of time stepping. The user can adjust the settings to optimize the time stepping for their given simulation.
Dear Mostak Ahamed ,
Thank you very much for your answer, I understand it.
Kind regards
Chandra
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