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Hi friends
I am doing a moving loading simulation in comsol. What I wanna simulate is a moving load like a tire pass on the ground surface. I learned the trick from an example called Peristaltic Pump which used a gaussian distribution in both time and space domains to control a moving load to a boundary.
Yeah, I did archieve this. However, when I look into the acoustic domain, it seems the coupling failed. Nothing was there. I set the boundary between the air and solid interface as structral acceleration and it showed no error as hint.
But the results tell me the acoustic domain had nothing coupling with the solid vibration.

So, any suggestion or similar experiences


Thanks a lot