What is "transmissibility"

Transmissibility \Trans*mis`si*bil"i*ty\, n. [Cf. F. transmissibilit['e].] The quality of being transmissible.

n. 1 (context uncountable English) The condition of being transmissible 2 (context countable English) The extent to which something is transmissible

Transmissibility may have several meanings:

• Transmissibility (vibration)
• Transmissibility (electromagnetism)
• Transmissivity, fluid flow in porous media
• Transmissibility (structural dynamics)

In most contexts, transmissibility is related to permeability.

In medicine, transmissibility is a synonym for basic reproduction number

Transmissibility is the ratio of output to input.

Transmissibility (T) = output/input

T>1 means amplification and maximum amplification occurs when forcing frequency (f) and natural frequency (f) of the system coincide.

There is no unit designation for transmissibility, although it may sometimes be referred to as the Q factor.

The transmissibility is used in calculation of passive heave compensation efficiency.

Transmissibility, in the context of Structural Dynamics, can be defined as the ratio of the maximum force (f) on the floor as a result of the vibration of a machine to the maximum machine force (P):

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

Where ζ is equal to the damping ratio and β is equal to the frequency ratio. R is the ratio of the dynamic to static amplitude.