How to properly bond 2 body's - erratic frequency analysis results
How to properly bond 2 body's - erratic frequency analysis results
(OP)
Hello,
I am modelling a coated cantilever beam in ansys (an AFM probe with a thin gold coating on the back side). Constructed a bimetal beam, used "add frozen" for the second layer, and then "form part" to finish it.
Now the simulation: I want to analyze the eigenfrequencies and mdoes. The frequency finder results show that the coating is resonating as if it were not bonded to the substrate material at all! I should point out that the dimensions for this simulation are pretty small (cantilever beam thickness ~1um, with a 50nm coating). I included one of the results
Does anyone have an idea/solution/hint on how to properly bond the two together?
Thanks a lot,
Ferry
I am modelling a coated cantilever beam in ansys (an AFM probe with a thin gold coating on the back side). Constructed a bimetal beam, used "add frozen" for the second layer, and then "form part" to finish it.
Now the simulation: I want to analyze the eigenfrequencies and mdoes. The frequency finder results show that the coating is resonating as if it were not bonded to the substrate material at all! I should point out that the dimensions for this simulation are pretty small (cantilever beam thickness ~1um, with a 50nm coating). I included one of the results
Does anyone have an idea/solution/hint on how to properly bond the two together?
Thanks a lot,
Ferry





RE: How to properly bond 2 body's - erratic frequency analysis results
RE: How to properly bond 2 body's - erratic frequency analysis results
I have not worked with a bimetal beam but one thing that I have heard is that the deformation results in a modal analysis are basically meaningless. I would suggest taking the output of that and puting it into a random vibration analysis and see what happens.
RE: How to properly bond 2 body's - erratic frequency analysis results
Postpro.> modelling> Operate> booleans> glue
Select volume, are or line accordingly. :)
RE: How to properly bond 2 body's - erratic frequency analysis results
In the normal ansys i would indeed use the boolean/glue. With workbench this option is not available. How do i access the Mechanical APDL via the workbench environment?