Cantilever Strain at Resonance Frequencies

Hello,

I am new to Comsol and am trying to simulate strain in various structures at their eigenfrequencies. I have no problem finding the eigenfrequencies, but the amplitude in the eigenfrequency study is taken to be around a meter when the cantilever or structure is on the micrometer scale. Because of this amplitude I can't use the eigenfrequency study to find strain in different resonating structures. If I could fix the total energy of the system to limit amplitudes that would be ideal.

Is there a way to limit the energy in the eigenfrequency study so that I can limit the amplitude of oscillation and have the same energys for higher order resonant frequencies? If not, how can I simulate the max strain in a cantilever or any structure vibrating at its resonant frequencies?

Thanks,
Dustin Bigham