Transmissibility (vibration)

Transmissibility is the ratio of output to input.

Transmissibility: ${\displaystyle T={\frac {output}{input}}}$

${\displaystyle T>1}$ means amplification and maximum amplification occurs when forcing frequency (${\displaystyle f_{f}}$) and natural frequency (${\displaystyle f_{n}}$) 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 hon efficiency.