Damping constant
Physical size  

Surname  Translation damping constant  
Formula symbol  

Physical size  

Surname  Rotation damping constant  
Formula symbol  

The damping constant ( formula symbols in part also or the latter can easily lead to confusion with the degree of damping ) is the proportionality factor of a linear damping element. The damping coefficient . The generated damping force or the generated damping torque results from:
 for a translational movement : from the damping constant, multiplied by the speed in the damping element ( )
 for a rotational movement : from the damping constant, multiplied by the angular velocity in the damping element ( ).
For example, in the following equation of motion of a damped oscillation, a damping constant occurs ( here is a spring stiffness ):
Application in the analysis of linear vibration systems: linear systems are mathematically much easier to deal with than non linear ones . Real attenuation, e.g. B. by shock absorbers , but are mostly nonlinear. In order to treat them in a mathematically simplified manner, linearization is often carried out.
The unit of the damping constant is
 for a translational movement:
 for a rotational movement:
Examples of damping elements are shock absorbers (translational) and torsional vibration dampers or viscous couplings (rotational, e.g. viscosity dampers ).