eigenfrequency

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eigenfrequency

[′ī·gən‚frē·kwən·sē]

(physics)

One of the frequencies at which an oscillatory system can vibrate.

References in periodicals archive ?

Before this first report in 1961, many geophysicists understood that the eigenfrequencies of the modes were key for inferring the Earth's geophysical properties, following Lord Kelvin's estimation of the molten Earth.

Ambient seismic wave field

As described before, a broad band excitation due to each single impact takes place and the system starts to oscillate with its eigenfrequencies.

Robot based machine hammer peening using an electromagnetic driven hammering device

The sharp drop in the values of all coefficients at [beta] > 50 agrees with the growth in eigenfrequencies, as follows from (Polyakov 2012b).

Acoustic conductance of a thick-walled anisotropic spherical shell submerged in liquid

Strictly speaking, for the perturbed interface ([gamma] > 0), the eigenfrequencies of the structure are complex.

Ultrasensitive switching between resonant reflection and absorption in periodic gratings

Eigenfrequencies of the reinforced concrete beams--methods of calculations, Journal of Civil Engineering and Management 17(2): 278-283.

Damage identification and assessment in RC structures using vibration data: a review

From a probabilistic perspective, he provides up to a fourth central probabilistic-moments analysis of state functions-- deformations, stresses, temperatures, eigenfrequencies, and so on-- because then it is possible to verify whether these functions really have Gaussian distributions or not.

The stochastic perturbation method for computational mechanics

It is supposed that particularly the 1st and 2nd eigenfrequencies of the drive system (approximately 14 Hz and 29 Hz) as well as higher frequency peaks will be recognizable in the oscillation spectrum.

Identification of transient phenomena occuring at the initiation and termination of wheelset sliding

From the behavior of the eigenfrequencies as a function of the wavenumber (dispersion relation) is possible to calculate important quantities such as the phase and group electromagnetic wave velocities.

Solucion numerica de un problema de valores propios para un plasma acotado

1) gives the vibration eigenfrequencies w = [square root of ([lambda][[mu].

Spectral approximation of variationally formulated eigenvalue problems on curved domains

If the array of resonators is actuated by any signal, only those resonators will start to vibrate which eigenfrequencies are equal to frequency components contained in the input signal.

A mathematical model of an artificial Cochlea based on an array of resonators

Assuming the spacings to be half wavelengths, and using the measured velocities, the data gave one a spectrum of what were called the eigenfrequencies of plants (Figure 2).

Structure in the vacuum

This may be applicable in situations where precise measurements are not of major concern, for instance simply for roughly locating the eigenfrequencies of vibrating systems.

POTENTIAL USE OF A PIEZOELECTRIC WIRE SENSOR FOR MONITORING THE BENDING VIBRATIONS OF LOGS