Hello.
I have created an acoustic structural model and provided them tie constraint at the interface. My acoustic field is a sphere where the solid is at the center where the solid shape is cut out from the fluid field. The fluid I am using is air. If I don't give air structural damping values...
Hello.
I am running modal analysis on ABAQUS on a disk with damping materials on it but I keep getting modes that are 0.01 Hz frequency apart. Can anyone tell me what can be changed in the modal analysis step so that it ignores such modes and takes larger steps?
Here are the modal step and the...
Hello.
I am doing an analysis of sound propagation from a solid disc when a periodic load is applied ro it. i got the pressure values for different ferquencies with the Steady state Modal analysis but some of the pressure peaks are negative. What do t hese negative pressures mean? Are they...
Hello.
I am trying to simulate sound pessure levels in air with acoustic structural analysis. I get pressure values from steady state Modal analysis. But when i apply a skin to the plate the pressure values don't get damped. I want to reduce the sound produced and am using a skin with shell...
Hello
I performed acoustic-structural analysis in ABAQUS/Standard and received Output POR and Displacement. I know that the POR valuse gives me the fluid pressure but is it the absolute pressure or gauge pressure? I am having trouble interpreting my results since the POR mmagnitude I got were in...
Hello Everyone.
I am new to ABAQUS. I have some previous experience in Ansys Structural FEA. I am trying to perform acoustic-structural analysis to find sound proapgation in air. I looked it up in the manual and followed the instructions but the results with the TIE constraints were not what I...
