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Acoustic structure interaction
Posted Jan 14, 2012, 5:54 a.m. EST 1 Reply
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Hello, i'm using Comsol 4.2a to simulate a 2D scenario with an air-filled room (10x5) meters, with a boundary PML region (1 m of thickness on the four sides). Into this region i've inserted a rectangular Steel box (6x2,5) meters with a 5mm of thickness.
The box is air filled too. Inside the box i've created a power point source (frequency domain analisys).
In this scenario i want to evaluate the Transmission loss, between the pressure inside the box and the pressure outside of it. In future i want to misurate the displacement of the steel structure and the acceleration of the material.
I have a convergence issue when i simulate this scenario at low frequencies (2-50 Hz) and this issue remains at certain frequencies.
How can i simulate this environment ad infrasound frequencies?
I've attached a Jpeg file with a rudimental image of the scenario.
Thanks for your time.
Goodbye.
The box is air filled too. Inside the box i've created a power point source (frequency domain analisys).
In this scenario i want to evaluate the Transmission loss, between the pressure inside the box and the pressure outside of it. In future i want to misurate the displacement of the steel structure and the acceleration of the material.
I have a convergence issue when i simulate this scenario at low frequencies (2-50 Hz) and this issue remains at certain frequencies.
How can i simulate this environment ad infrasound frequencies?
I've attached a Jpeg file with a rudimental image of the scenario.
Thanks for your time.
Goodbye.
1 Reply Last Post Jan 17, 2012, 6:26 a.m. EST
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Posted:
1 decade ago
Hi, anyone on this board uses the Acoustic structure interaction, with a similiar scenario?
I think the convergence issue is related to the very thin plate of the box (the wavelenght is very large) but i don't want to create a box with a thicker plates, because i want to simulate that box, not another box.
Anyone can help me?
Thanks.
Bye.
I think the convergence issue is related to the very thin plate of the box (the wavelenght is very large) but i don't want to create a box with a thicker plates, because i want to simulate that box, not another box.
Anyone can help me?
Thanks.
Bye.