Learning Forum

[rbaheti]

I'm trying to run a simple simulation where a cylindrical vial is being cooled to -200C. The thermal simulation works perfectly but when I import the thermal data to transient structural module the system gives an error: An unknown error occurred during solution. Check the Solver Output on the Solution Information object for possible causes.

The structural module was created (on Workbench) by joining Thermal Engineering Data to Structural Engineering Data. Same for Geometry. Thermal Solution to Structural Setup.

I've provided Remote Displacement BC to the lower surface of the cylinder (All definitions have been set to 0) - I've also tried fixing a random point on the base of the cylinder and the rim of the cylinder (3 different scenarios).

The data is imported as: Tabular loading - ramped; Source bodies - All; Source Time - All [Imported Load>Imported Body Temperature]

I'm also added creep constants to the fluid (the cylinder is the insides of a container): Creep Effect - On; Creep Limit Ratio - 0 [Analysis Settings]

No sure what is going wrong.

[Chandra Sekaran]

What is the error message in the solve.out file. You can find this file thru Solution - righ moust button- open solver files directory . Any solver error will be indicated here.
Are you able to visualize the imported temperatures
The issue may not be the temperature load. Try removing the creep properties temporarily and see if that works.

[rbaheti]

I went through the file0.err file (Solution Information directed me to that). The error was very small - I didn't change the default environment temperature and that temp was outside the domain of me thermal simulation. The simulation is now running.
I am also performing another simulation using the same parameters: In this simulation I've to constrain the model (non-primitive shape) by 3 points. I run the same simulation parameters and I get the following error.

*** WARNING ***CP =1.594TIME= 15:13:04
Element shape checking is currently inactive.Issue SHPP,ON orSHPP,WARN to reactivate, if desired.

*** WARNING ***CP =2.031TIME= 15:13:04
Material number 2 (used by element 56934) should normally have at leastone MP or one TB type command associated with it.Output of energy bymaterial may not be available.

I came across this link (https://www.eng-tips.com/viewthread.cfm?qid=367279) that says to ignore both the errors. Not sure what's wrong here.
I had to create a new material in Engineering Data and gave it the following properties: Young's Modulus, Poisson's ratio (which calculated Shear and bulk modulus), Isotropic Instantaneous Coefficient of Thermal Expansion, Time hardening (Creep coefficients), Isotropic thermal conductivity, and Specific Heat Constant Pressure. Not sure if the error has something to do with missing/incorrect material property.