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Scaled Eigenmodes as Initial Conditions in transient FSI simulation
Posted Oct 17, 2013, 1:00 p.m. EDT Structural Mechanics Version 4.3b 0 Replies
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Suppose we have a simple beam system with arbitrary boundary conditions, let's say fixed-fixed for this example. I can easily calculate the eigenmodes of the structure using Comsol.
What I'd like to do is take that beam system, submerge it in fluid, and use the scaled eigenmodes of the (in vacuum) system as a initial conditions for a transient FSI simulation. For example, one might take the first transverse eigenmode and use that shape as an initial velocity condition, scaled such that the maximum velocity was some chosen constant. The resulting transient FSI simulation would yield a damped ringdown of the structure in the first eigenmode. How does one accomplish this? I cannot find any information in the manuals or this site.
Could somebody help me out?
Thank you!
Hello Ryan Tung
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