Acoustic FE Modelling
Acoustic FE Modelling
(OP)
Hi all,
I wanted to ask .. how to model an absorbent material in FE? i mean i am trying to build a simple FE model in Matlab and i have a simple cylinder with a force input from a piston at one end and a rigidly backed abosrbent material at the other. the thickness of the absorbent material isnt too small and it has to be modeled as an impedance....
how do i do it?
matlab and acoustics experts pls advice
ashish
I wanted to ask .. how to model an absorbent material in FE? i mean i am trying to build a simple FE model in Matlab and i have a simple cylinder with a force input from a piston at one end and a rigidly backed abosrbent material at the other. the thickness of the absorbent material isnt too small and it has to be modeled as an impedance....
how do i do it?
matlab and acoustics experts pls advice
ashish





RE: Acoustic FE Modelling
RE: Acoustic FE Modelling
Thank you for the help.. i have to do this in two steps.. in one approach i just model it as boundary impedeance and in the second one i have to mesh the absorbant material also.. now i have a rough idea how to do the first step..coz the absorptivity of the material is provided .. but how do i do the modelling of the absorbant material?
pls advice..
i am making the element mass and stiffness matrices on LHS and the load vector on the approach .. where the Galerkins approach is used to get elements of these matrices...
thanks so much ..
pls advice...
thanks again