natural frequency


Also found in: Dictionary, Thesaurus, Medical, Acronyms, Wikipedia.

natural frequency

[′nach·rəl ′frē·kwən·sē]
(electronics)
The lowest resonant frequency of an antenna, circuit, or component.
(physics)
The frequency with which a system oscillates in the absence of external forces; or, for a system with more than one degree of freedom, the frequency of one of the normal modes of vibration.

natural frequency

One of a number of frequencies at which a system or object tends to vibrate if subject to a mechanical displacement or impact and then allowed to vibrate freely.
References in periodicals archive ?
natural frequency of vibrations of the vibration-isolating system, Hz; and v is the logarithmic decrement of the elastomeric material used for the manufacture of the vibration isolator.
To summarize, the natural frequency and tangential tensile stress in the edge of a circular saw blade are two important indicators for tensioning effect, and are also the basis for the optimization of a multispot pressure tensioning process.
Speed is calculated at each block by computation of first natural frequency at each block.
Interestingly, the size of the delaminated region had negligible effect on the average natural frequency for each mode shape for both of the clamped boundary conditions.
Total 6 types of the beam with three different water to cement ratio and two different covers to diameter ratio were analyzed and experimental natural frequency was validated using Algor simulation software.
Caption: Figure 7: Influence of surface effects and size dependence on the normalized fundamental natural frequency of the microcantilever for 2h=0.2L, b=0.4L, and [kappa] = 5/6.
(iii) Case of M-4 (asymmetric third): lateral natural frequency is 0.879 Hz M = 9.72e4, m = 2.469e3, k = 2.964857e6, and C = 2.905e3
(3) In order to improve the comfort of the driver, it is necessary to reduce the natural frequency of the cab structure in the design process.
Failure was found only in particular cultivation application and as per NVH suggestion first natural frequency must be more than 15 Hz based on field data acquisition as shown in Fig.
For a damped system, the natural frequency of the response is dependent on stiffness k, mass m, and damping ratio [zeta] in Equation 2:
The natural frequency [w.sub.i] of the flexural vibration of cantilever beam considering the bending moment generated by the attached mass can be calculated using the transformation of (12).
Transfer matrix method is used to calculate the high order modes and the moving wave characteristics of the shell, and it was observed that high order vibration characteristics of rotating thin shells and hard coating damping material had a more obvious effect on the natural frequency at the high vibration order.