Generally,
vibration, another term for structural dynamics, is the oscillation
of a mechanical system due to time-varying forces acting on
it. The system or structure has its largest oscillation at a
natural frequency, or resonance.
For
a simple one-dimensional system:
f
is the natural frequency in cycles/second
m is the mass
k is the stiffness
c is the damping and has no effect on the natural frequency
The motion of a simple vibrating object or system is described
in terms of its amplitude (how large the oscillations is)
and the frequency (how fast it oscillates).