Angular Natural Frequency Shaft Two Masses Equations and Calculator

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Angular Natural Frequency of Shaft and Two Masses Equations and Calculator

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I<sub>2</sub>

ω_n = [ ( k_t ( I₁ + I₂ ) ) / ( I₁I₂ ) ] ^1/2

Where:

k_t = Torsional Stiffness of Shaft ( lb-in/rad )
I_{1, 2} = Rotary Mass Moment of Inertia ( lb-in-sec² )
ω_n = Angular Natural Frequency ( rad/sec )

Reference Harris, Shock and Vibration Handbook

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