Learning Forum

[Brendan Sheehan]

I am a researcher using Ansys Electronics Desktop (formerly HFSS) version 2023 R2 to perform simulations on a resonant structure. In the past 10 days, very suddenly, the software's performance has degraded rapidly. Now I can no longer get it to do much of anything without freezing and going into 'not responding.'

 

What I am trying to do now is the following: I have solved my resonant structure in HFSS/modal solution type using the 'Fast' method, and saved fields. Now, I have a calculator expression I have defined and would like to now calculate this quantity at every frequency in my frequency sweep. 

 

It seems like it should be a trivial calculation, except that I keep getting this error: "Fast sweep field configuration. process hf3d error: Failure in assembling matrix. Please contact Ansys technical support"

 

The computers we use have more than enough RAM and hard drive space to run the software. Additionally, I am watching the memory usage using the Task Manager, and it never approaches 100% – there should be sufficient memory to do these calculations. So my question is, what is going on? Why is the software no longer working?

[Brendan Sheehan]

The note from "Echo Wise" is spam. I'm hoping for an actual response – in particular because the Ansys Customer Support is unwilling to help.