the heavily meshed part is the disc , bottom fixture and vertical shaft fused as one component , over which disc is put and on top a plate over which the bolt is attached. There is quite a bit clearance in bottom part of disc . I have even put one bolt under the disc to raise the height but same...
On top of this shaker the fixture is attached onto which disc is attachedhttps://files.engineering.com/getfile.aspx?folder=98ef2b07-84e9-46b7-8e3f-9c15f234007a&file=Fixture_with_disc_assembly1.jpg
I am currently doing a college project in which I have to find the natural frequency of a disc of about 250mm in diameter ( axis symmetric disc). For doing this I mounted this disc to an electrodynamic shaker and had done a frequency sweep from 5hz to 500hz.
I have attached 4 strain gauges to...
My Experimental and Simulation modal frequencies are not matching , Assuming my Simulation is correctly done is ansys what to do in order to match ?? the difference is more than 100hz between simulation and actual. is it necessary to add a virtual weight or load to disc in simulation in order to...
