Radioss Output

Altair Forum User

Hi, 

 

Is it possible to output the boundary conditions (applied load, displacement, ect.)? I guess one have to define the correct engine card, but which?

And 2nd, is it possible to output geometrical data e.g. define a skew-system and measure the angle between these systems?

 

Cheers, J

Altair Forum User

Hi,

Displacement will be a default output in the h3d file. I didn't understand on output of boundary conditions. Can you be bit more clear?.

The attached file gives details on generating animation files containing results according to the keywords specified. 

You can define skew system in HyperView (Model>Create>Systems) and it is possible to measure the angle between them using the measures option.

<?xml version="1.0" encoding="UTF-8"?>

 

Unable to find an attachment - read this blog

Altair Forum User

Sorry, I try to explain it clearer: For example I applied a force/moment in the BC-Manager. Now, if I want to have access to this values in the output file, so that I can plot it on the X-axis and e.g. vonMises Y-Axis. Is that possible? 

 

Yes, I've seen this option that you can measure angles between skews. However, in Hyperview I did not have access to the systems. They are not included in the output file. 

Altair Forum User

Hi,

You can try with the /ANIM/VECT/FEXT keyword in engine file, which will extract the external forces. 

You can use cross plot option to create the curve. Please refer this post for creating a cross plot: http://forum.altairhyperworks.com/index.php?/topic/19642-plot-displacement-vs-force/

 

Please see the attached image which shows creating systems in HyperView.

 

<?xml version="1.0" encoding="UTF-8"?>

Altair Forum User

Hi George, 

Is it possible to create these systems movable. I want to have one fixed system and want to measure the angle to one on a moving object (I want to measure the angle between two vertebras, the lower one is fixed, the upper one is moving). Whit Model-Create-Systems I get a system which does not move with the object. However, I need to plot it dynamically over the hole simulation. 

 

Thanks, J

Altair Forum User

Hi Jonas,

For measuring the angle in HyperView, create two system in HyperView (Model>Create>Systems) and from Measures panel you can check the relative angle between two nodes or systems.

Altair Forum User

Hi George, 

 

Yes, I know that. But I'd like to have a moving system so that I can check the angle over the time. Is this possible?

 

Best, J

Altair Forum User

Hi Jonas,

You can create a moving skew in RADIOSS, but it will not be exported for post processing.

Altair Forum User

Ok, I guess I have to write a script then, where I read out the position of the nodes and calculate the angles at any time frame.