Enter the mass, damping ratio, and natural frequency into the calculator to determine the damping constant. This calculator helps in understanding the damping characteristics of a mechanical system.

Damping Constant Formula

The following formula is used to calculate the damping constant.

c = 2 * m * ζ * ω

Variables:

  • c is the damping constant (N·s/m)
  • m is the mass of the system (kg)
  • ζ is the damping ratio (dimensionless)
  • ω is the natural frequency (rad/s)

To calculate the damping constant, multiply twice the mass of the system by the damping ratio and the natural frequency.

What is a Damping Constant?

The damping constant is a parameter that quantifies the amount of damping in a mechanical system. Damping is the force that opposes motion and dissipates energy, often due to friction or resistance. The damping constant is crucial in designing systems that require controlled motion, such as in automotive suspension or seismic building design. It helps in predicting how quickly a vibrating system will come to rest.

How to Calculate Damping Constant?

The following steps outline how to calculate the Damping Constant.


  1. First, determine the mass of the system (m) in kilograms.
  2. Next, determine the damping ratio (ζ), which is dimensionless.
  3. Next, determine the natural frequency (ω) in radians per second.
  4. Next, gather the formula from above = c = 2 * m * ζ * ω.
  5. Finally, calculate the Damping Constant (c) in Newton-seconds per meter.
  6. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

mass of the system (m) = 5 kg

damping ratio (ζ) = 0.7

natural frequency (ω) = 10 rad/s