synonymnatural frequency(Physical term) generally refers to natural frequency
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Natural frequency refers toelastomerOr elastic system itselfVibration frequency。Also called“natural frequency”。Is elastic body or elastic systemInherent attribute, whose value is the same asinitial condition It has nothing to do with the magnitude of the external force.For multi particle system, the natural frequency, self mass and its distribution (stiffness), boundary support conditions andVibration form(called“Mode shape”）About.[1]
Chinese name
Natural frequency
Alias
natural frequency
Interpretation
The natural vibration frequency of elastic body or elastic system
Relevant factors
Self mass and its distribution, boundary support conditions and vibration forms
Calculation formula
ω=2πf=2π/T
Properties
Inherent properties of an elastomer or elastic system
Where, refers to the number of vibrations within 2 π unit time (seconds), and the unit is radian/second.
definition
Announce
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ω=(k/m)^(1/2)
ω is a very important intrinsic part of the systemdynamic characteristics 。stayforced vibration When the natural frequency ω of the system is close to the frequency θ of the interference force (0.75 ≤ θ/ω≤ 1.25), resonance will occur.To avoid resonance, ω and θ must be kept away.It can be seen from the formula that the natural frequency is only related to the stiffness and mass.yesInherent characteristic, not affected by external forces.
