Can anyone point me in the right direction for the following problem:
I'd like to model a clamped-clamped beam with fluid between the beam and a fixed wall. As the beam is deflected (with a transient inertial acceleration), the fluid (air) is compressed and squeezed out from beneath the gap. This creates a damping effect on the beam. I can already perform a squeezed-film analysis on the structure using FLUID136 elements to determine a damping coefficient, but would like to investigate what happens when the gap becomes extremely small. ANSYS 10 has a piezoelectric example (Example Simulation of a Piezoelectric Actuated Micro-pump), but I do not have a license for CFX. It also does not account for the large deformation in the fluid.
I’ve tried some MFS Single-Code Coupling runs, but have not gotten any good results.
Does anyone have any examples or suggestions that I could follow?
Thanks in advanced
Dan
I'd like to model a clamped-clamped beam with fluid between the beam and a fixed wall. As the beam is deflected (with a transient inertial acceleration), the fluid (air) is compressed and squeezed out from beneath the gap. This creates a damping effect on the beam. I can already perform a squeezed-film analysis on the structure using FLUID136 elements to determine a damping coefficient, but would like to investigate what happens when the gap becomes extremely small. ANSYS 10 has a piezoelectric example (Example Simulation of a Piezoelectric Actuated Micro-pump), but I do not have a license for CFX. It also does not account for the large deformation in the fluid.
I’ve tried some MFS Single-Code Coupling runs, but have not gotten any good results.
Does anyone have any examples or suggestions that I could follow?
Thanks in advanced
Dan