CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > General Forums > CFD Freelancers

Ansys Workbench Thermal-Stress Coupling - 2D Hot Rolling simulation

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 2, 2014, 15:52
Default Ansys Workbench Thermal-Stress Coupling - 2D Hot Rolling simulation
  #1
New Member
 
Jerónimo
Join Date: Feb 2013
Posts: 6
Rep Power: 13
Jeronimo97 is on a distinguished road
Hi,

This job is about a 2D modelling of an Hot Rolling process. I've already made the transient thermal and the static structural simulation in Ansys Workbench, and now it's necessary to couple both thermal and stress systems.
Both systems have already been made in Ansys 14.5 (Workbench envirnment).

It's a simple job, but my lack ok knowledge in Ansys coupling coding is my limitation on this project.

The Model:
- Is composed by 2 rolls and a steel bar. Due to the symmetry of the model only one roll and half of the bar is simulated.
- The simulation is performed when the roll moves down and the bar moves to the left. As such, the bar is pulled from her left end and the roll is displaced down in Y axis.

Boundary Conditions (Pictures sent in private message):

Mechanical:
-A: In the roll there is remote displacement in Y axis only (Remote disp. in X is 0 and rotation in Z is free); The roll rotates freely, without torque applied, and the contact between the roll and the steel bar is made by friction;
-B: In the symmetry plane along the middle section of steel bar there is a frictionless support to allow the steel bar to be pulled;
-C: In the steel bar there is displacement only in X axis(Free in Y axis);

Thermal:
-A, B, C and D: There is convection and radiation in the roll and steel bar surfaces.
-E: Inside the roll there is a fixed temperature of 30°C to simulate the refrigeration water in the roll;
-There is conduction in the contact zone between the roll and the steel bar;
-The heat generation due to the plastic deformation and friction in the contact zone is negligible;
-The steel bar initial temperature is 830°C and the roll temperature is 250°C.

All the settings like temperatures and boundary conditions are already defined in both models provided afterwards in attachment.

The purpose of this job is to create a fully (direct) coupling system (or other suggested by you) that combines both static (or transient if more convenient) structural system with the transient thermal system already simulated independently.

It's highly preferred that the coupling simulation could be made with the Command Snippet inside the static structural system so that I can evaluate the results myself later.
The simulation should be performed with a very small refined mesh (let’s say 2000 elements) because I’m under pressure with the deadline to submit this project.

Please feel free to contact me for any further information you need .

Thank you,
Guilherme
Jeronimo97 is offline   Reply With Quote

Old   April 2, 2014, 17:14
Default
  #2
New Member
 
Hemen Shah
Join Date: Jul 2013
Posts: 29
Rep Power: 13
Hemen Shah is on a distinguished road
Hello Guilherme,

Hi-Tech, an ISO certified firm will be happy to assist you in your project.

Please visit :
Hi-Tech: Engineering Services - CAE, FEA, CFD : http://bit.ly/Hi-Tech-CAE-FEA-CFD-Services

To view our services and case studies.

For more details Email me at hemen.shah@hitechos.com.
Looking forward to hear from you.
Regards
Hemen.
Hemen Shah is offline   Reply With Quote

Old   April 2, 2014, 17:58
Default interested
  #3
New Member
 
Join Date: Feb 2014
Posts: 9
Rep Power: 12
sfmoabdu is on a distinguished road
i'm a Freelancer with more than 9 years experience and PhD, located in Germany. I have all needed tools and software.

i had done one project before, which is very similar to yours.

i will be glade to read your reply at my email: mohammed_m_saad@hotmail.com

best regards,

M. Abdulaziz
sfmoabdu is offline   Reply With Quote

Old   August 23, 2014, 03:21
Default
  #4
New Member
 
Raj
Join Date: Aug 2014
Posts: 8
Rep Power: 12
desservecfd is on a distinguished road
Hi
We can simulate for either "both transient environment" or "both steady state environment". The problem you're facing rightnow is, you are trying to couple the temperatures from a transient environment and export them to a structural which is not having any time domain!. Let us know if you need help.

Regards,
__________________
Rajendra Kachhadia
Desserve Engineering Solutions
cfd@desservees.com
desservecfd is offline   Reply With Quote

Old   August 23, 2014, 21:30
Default
  #5
New Member
 
Jerónimo
Join Date: Feb 2013
Posts: 6
Rep Power: 13
Jeronimo97 is on a distinguished road
Hi desservecfd. Thanks for your help.
I ended up simplifying the problem and it's already solved.
Jeronimo97 is offline   Reply With Quote

Reply

Tags
ansys apdl, command snippet, direct coupling

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Export parameter from ANSYS Workbench into a Log-file xtphgu ANSYS 2 March 22, 2018 11:25
FSI in Ansys 14 workbench arun7328 FLUENT 6 May 9, 2013 04:46
thermal stress analysis? Jinfeng Main CFD Forum 1 January 21, 2009 09:26
2D mesh in ANSYS 10.0 Workbench Frank Peters CFX 4 May 18, 2006 05:36
Info: Short Course On Thermal Design of Electronic Equipment Arnold Free Main CFD Forum 0 August 10, 1999 11:18


All times are GMT -4. The time now is 12:47.