These graphs show that free oscillations
decrease over a limited period of time, which is about 1 s.
Assessing musculo-articular stiffness using free oscillations
: theory, measurement and analysis.
(1959) analyzed seismographs not only of huge earthquakes but also of seismically quiet intervals, (35) which are now recognized to represent the Earth's background free oscillations
or seismic hum.
The sensors that operate on the principle of non-contact measurement are used to measure the free oscillations
of console instruments and forced oscillations during the cutting process.
These parameters were determined by filing of the free oscillations
of model of a platform on quiet water.
Control of the process of vibro-treatment of the construction was developed using registration of logarithmic decrement of free oscillations
of constructions after impact has been applied.
Kaczorowski, M.: 2006A, Earth free oscillations
observed in plumb line variations from the 26 December 2004 Earthquake., Acta Geodyn.
The analytic technique had been applied successfully in many nonlinear problems in engineering and science [21, 22], for example, the magnetohydrodynamic flows of non-Newtonian fluids over a stretching sheet , nonlinear progressive waves , free oscillations
of positively damped systems with algebraically decaying amplitude , free oscillations
of self-excited systems , and similarity boundary layer equations .
Thus, the frequency of free oscillations
in such an oscillating circuit is [[omega].sub.free] = [[omega].sub.0].
The symbols 1T and 2T mean the characteristic of the period of free oscillations
dependent on period [T.sub.[omega]] of excitation force: T = n[T.sub.[omega]], n = 1, 2,3,....
Fairly strong seismological confirmation of the existence of a solid inner core came in 1960, albeit in an unsuspected form: free oscillations
of the earth brought about by a major earthquake in Chile on 22 May.