Gear_velocity_factor
Gear_Velocity_Factor(V, Profile$)
The function Gear_Velocity_Factor returns the velocity factor (sometimes called the dynamic factor or the Barth velocity factor) associated with AGMA standards (note that the definition of the dynamic factor used here is consistent with the current AGMA standards and therefore is >1)
Inputs:
V - pitch line velocity ([m/s] or [ft/s])
Profile$ - string indicating the tooth profile
'Cast' for cast iron or cast profile
'Cut' or 'Milled' for cut or milled profile
'Hobbed' or 'Shaped' for hobbed or shaped profile
'Shaved' or 'Ground' for shaved or ground profile
Output:
Returns the dimensionless velocity factor (K_V)
Example:
$UnitSystem SI Mass J K Pa
$Load Mechanical Design
V=4 [m/s]
Profile$='cast'
K_V=gear_velocity_factor(V,Profile$)
{Solution:
K_V = 2.311
}
Reference: Budynas, R.G. and J. Keith Nisbett, Shigley's Mechanical Engineering Design, 11th Edition, McGraw Hill, New York, (2020).
The function uses the equations found in 14-6(a) through 14-6(d)