Unable to run Optimization

Altair Forum User

I am new to Inspire,I just downloaded the Trial version yesterday.I set up an simple model with some load cases and tried to optimize it for stiffness.

I get the message that 'unable to run'Optimization error.

I checked the Progress log file.As shown below.

Can you please tell me what mistake am I doing.I just created a non design space as a cylindrical holes in the model with a boss.I dont understand where is the contact Issue.I checked using the contacts and every non design space is shown as blue

 

# -------------------- Progress Tracker --------------------
hwfdmfeprocessor process id = 1560
# Opening Model
# Model opened successfully
Client  = Inspire    18.0 9508 
Name  = FINAL1 Max Stiffness Mass 30% (6) 
ModelName  = Model 
stmodOffsetId  = 2 
# RunType: OPTIRUN_ANALYSIS = 1, OPTIRUN_TOPOLOGY = 2, OPTIRUN_TOPOGRAPHY = 4,  OPTIRUN_SHAPE = 8, OPTIRUN_GAUGE = 16, OSSMOOTH_REANALYSIS = 128 
RunType  = 2 
# Using CAE_HOME='C:/Program Files/Inspire/2018/unity/bin/win64/'
RUN_STATE = 1 ## Run started
RUN_STATE = 3 ## Generating fresh mesh/Using old mesh
#--------Generating fresh Mesh 
RUN_STATE = 7 ## Meshing completed successfully
RUN_STATE = 15 ## Realizing model
#--------Unable to realize contact (Contact 8) as UdbSet for Secondary features can not be created
#--------Unable to realize 
# Error - Unable to ralize synthesis data
RUN_STATE = 1039 ## Done
# --------------------- END -----------------------
 

Altair Forum User

Hi Rahul,

 

Welcome to the sT Forum! Feel free to share your *.stmod with us, so we can have a look whats wrong there.

 

Regards,

Felix

Altair Forum User

I am now able to run the Simulation and it turns green showing completed Status.

But I am unable to view the results,it Shows a message that Insufficient loads or realstic loads are not applied.

Can you please help me run this model.

I want to minimize the mass,maximize frequencies with Stamping constraint and casting constraint

Using Aluminium and then using Steel

Unable to find an attachment - read this blog

Altair Forum User

Hi Rahul,

 

That's an impressive model! A few things I would suggest:

1. Delete all parts inside the model Browser which are not needed

2. Run the optimization for 'max. stiffness' first - to find out what is an achievable SF with the 'min. feature' thickness you are using

3. Take this info back into account for the 'min. mass' optimization

 

Regards,

Felix

Altair Forum User

Just got the results for my optimization I started - it seems like your boundary conditions (stamping) isn't suitable for your designspace - or you have to decrease the 'min. feature thickness'.

 

Felix

Altair Forum User

Hi Felix,

Thanks a lot for your quick Support.

Can you please share the st mod file to me that you ran with the right way to put the stamping conditions.

And I dont understand how to choose the Minimum thickness.The model you see is actually that of a Rear Axle for a car(design space)

I actually have 10 more load cases that I Need to introduce.So if I get this one running I can work further.Struck here for 1 day.