Transmissibility (structural dynamics)

Transmissibility, in the context of structural dynamics, can be defined as the ratio of the maximum force ($$f_{max}$$) on the floor as a result of the vibration of a machine to the maximum machine force ($$P_0$$):


 * $$TR = \frac{f_{max}}{P_0} = R_d\sqrt{1+(2\zeta\beta)^2}$$


 * Where $$\zeta$$ is equal to the damping ratio and $$\beta$$ is equal to the frequency ratio. $$R_d$$ is the ratio of the dynamic to static amplitude.