damping factor


Also found in: Wikipedia.

damping factor

[′dam·piŋ ‚fak·tər]
(physics)
The ratio of the logarithmic decrement of any underdamped harmonic motion to its period. Also known as damping coefficient.
References in periodicals archive ?
The damping factor, [Rho], is at the heart of statistical tests for an endogenous cycle.
The ratio E"/E' yields the loss tangent or damping factor (tan [delta]) which is the ratio of energy lost per cycle to the maximum energy stored and therefore recovered, per cycle.
A simplified analysis serves that purpose where the flow distribution in the inner slot is imposed and a damping factor is calculated as the peak-to-peak flow rate variation in the inner slot divided by that in the outer slot.
n] is the given modal damping factor and [rho], L, S are respectively density, length, transversal area of the beam.
In this paper is presented experimental determination of damping factor and its dependence on considered type joint in the case of tower construction model.
The main criteria that characterizes the welding behavior of plastic materials is consisted by the damping factor B of the oscillations amplitude in the considered plastic material.
Equation (3) implies that damping factor for specific case could be calculated from measured vibration frequency and logarithmic decrement of a acceleration amplitude.
The DMTA is an instrument capable of determining the dynamic storage modulus, E [prime] or G', and damping factor (tan [Delta]) of rubbers, polymeric materials, composites, etc.
g], damping factor at room temperature referred to as Tan [delta] and the damping factor at T referred to as the peak-damping factor (Tan [delta] T) with different loading of MMT are reported in Table 2.
For example, modelings based on periodic homogenization tend to underestimate the strong decrease in the damping factor shown by composite materials, even for high volume fractions of fibers (16).
Generally position loop gain Kv should be high for faster system response and higher accuracy, but the maximum gains allowable are limited due to undesirable oscillatory responses at high gains and low damping factor.
Figure 5 shows the variation of the damping factor with power law index.