##  [Natural Frequency](/natural-frequency) 

  ##  [Natural Frequency](https://engineering.quantumdictionary.io/natural-frequency-0) 

  

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**Engineering & Applied Technologies Dictionary**

 







 

 

 

 



 

 

 

 

Definition

The characteristic angular frequency ωn (or cyclic frequency Fn = ωn/2π) at which a conservative or weakly damped dynamical system oscillates when displaced from equilibrium in the absence of sustained external forcing; for a linear single‑degree‑of‑freedom system ωn = sqrt(k/m). It is a property of the system's mass and stiffness distribution and defines a modal timescale.