natural frequency

(redirected from Natural frequencies)
Also found in: Thesaurus, Medical, Encyclopedia.

natural frequency

n
(General Physics) physics the frequency at which a system vibrates when set in free vibration. Compare forcing frequency
References in periodicals archive ?
First, the natural frequencies of 16 fruit-stem samples and 8 branch samples that were collected at ripe and green stages were experimentally determined using controlled sweep frequency tests.
Closed-form analytical solution is developed to obtain explicit formulas to obtain the natural frequencies of SLGSs corresponding to each type of nonlocal plate theory through exact solution for the governing differential equations.
Modal identification techniques estimate the dynamic properties of a structure, such as natural frequencies, mode shapes and modal damping ratios, by measuring its dynamic response.
From modal analysis first frequency were more than ground level frequency and other natural frequencies is not meeting with engine operating frequency range as shown in Table.
All physical structures have natural frequencies at which they freely respond if they are disturbed from equilibrium [2].
No Device Company Description 1 Impulse hammer YMC PIEZOTRONICS,INC Sensitivity 25mV/N type IH-1 2 Dynamic signal YMC PIEZOTRONICS,INC YMC 9004 IEPE Analyzer 3 Miniature YMC PIEZOTRONICS,INC Sensitivity 100 mV/g Accelerometer Table 2: The natural frequencies (Hz) of the fresh and boiled bones for different modes of vibration.
My first suspicion was that my two "identical" detectors were not quite identical, but had natural frequencies in their circuits (including the cables) that were not quite the same.
Modal analysis of any structure is carried-out to determine natural frequencies and mode shapes.
The result is a compact passive isolator capable of very low vertical and horizontal natural frequencies and very high internal structural frequencies.
The rm claims this acts as an antenna "tuned to capture speci c natural frequencies, channelling them towards the body, which in turn bene ts the body's own rhythms, tuning the wearer back to a state where they per- form and live at their best".
It covers definitions, symbols, units, and geometric properties; dynamics of point masses and rigid bodies; natural frequencies and mode shapes for spring-mass systems, pendulums, strings, membranes, beams, plates, and shells; fluid and acoustic solutions to the wave equation and added mass; formulas for the response of elastic structures to sinusoidal, transient, and random loads; and properties of structural solids, liquids, and gases that support the formulas in the previous chapters.
As can be seen from Figure 8(b), it is impossible to extract the natural frequencies at the higher mode (above 15 Hz) by the application D-Viewer because of its low sampling rate.