Den Hartog Transmission Galloping Calculator

Power Line Aeroelastics: Evaluate the Den Hartog stability criterion ($dC_L/d\alpha + C_D < 0$) and predict galloping onset wind speed ($V_g$).

Total Unit Mass with Ice $m$ (kg/m):

Effective Diameter $D$ (mm):

Span Natural Frequency $f_n$ (Hz):

Mechanical Damping Ratio $\zeta$:

Drag Coefficient $C_D$:

Lift Curve Slope $dC_L/d\alpha$ ($rad^{-1}$):

Den Hartog Sum

Galloping Onset ($V_g$)

-- m/s

Onset Speed (km/h)

-- km/h

Stability Status

• Circular Frequency ($\omega = 2\pi f_n$): -- rad/s

• Aerodynamic Damping Derivative: --

• Conductor Mass Parameter ($m / \rho D^2$): --

• Flashover Risk Assessment: --

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