overdamping

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overdamping

[′ō·vər‚damp·iŋ]
(physics)
Damping greater than that required for critical damping.
References in periodicals archive ?
High gas pressure works as a mechanical damper; the pressure inside the cavity is high enough to overdamp the cantilever movement in such a way that the mechanical Q value is well below 1.
In practice, it can change from highly overdamped to under-damped up to system instability and oscillation.
The damping ratio of the V2H1 mode in Porce II ([zeta] = 0.08) is well below the critical damping ([[zeta].sub.c] = 1), so the oscillations were underdamped, which has also been observed in most stratified systems with few cases (Imam, et al, 2013) reporting overdamped oscillations.
The opposite effect can be observed when the oscillator is overdamped (for values of [lambda] = -1, [mu] = 1): the solutions decay more rapidly for values of m/n closer to 2 (see Figure 3 (b)).
The response characteristics of a drill bit (i.e., the damped characteristics) can be under, critical, or overdamped given its motion equation, that is, (1).
The damping characteristic can be divided into three categories: overdamped ([zeta] > 1), underdamped ([zeta] < 1), and critically damped ([zeta] = 1).
MacKay, "A novel preserved partial order for cooperative networks of units with overdamped second order dynamics, and application to tilted Frenkel-Kontorova chains," Nonlinearity, vol.
The plot also highlights the importance of designing the bearings in such a manner that underdamped and overdamped conditions can also be avoided through proper design.
Moreover, the appearance of SR in a trapping overdamped monostable system was also investigated in literature [16] recently.
Strong dependence of the magnetic moment curves on the aperture angle is seen; their shapes are changed from one, typical for weakly damped AB oscillations, when the aperture angle is small (solid line in Figure 7), up to other, typical for an overdamped oscillator, when the aperture angle becomes large (dash lines).
The poles of the transfer function (22) are {-3254.9, -0.0933} so the series DC motor is stable and overdamped. It is also possible to distinguish the two typical modes of a DC motor from the poles: (s + 0.0933) representing the slow dynamic of the mechanical subsystem and (s+3254.9) the fast dynamic of the electrical subsystem.
The vibrations of linear 1 DOF systems with ordinary damping can be classified as underdamped, critically damped, and overdamped according to the magnitude of the damping coefficient.