Loss factor

Post by **amh** » Sat Feb 03, 2024 4:51 am

Loss factor is defined as the ratio of the energy dissipated by the structural system to the total energy of the system, per cycle of vibration

The equation:

$\eta = \frac{P_d}{\omega E_{Tot}} = \frac{E_d}{2\pi E_{Tot}}$

Pd = dissipated power
ω = angular frequency
η = loss factor
Ed = dissipated energy
ETot = Total mechanical energy
ETot = EK + ES
Total mechanical energy can be represented by the summation of dissipated kinetic energy, (Ek) and strain energy, (Es).