Swivel motion

Coefficients of swivel motion:

$\sigma \left(t\right)={\sigma }_6{t}^6+{\sigma }_5{t}^5+{\sigma }_4{t}^4+{\sigma }_3{t}^3+{\sigma }_2{t}^2+{\sigma }_{1}t+\sigma$

The profile of additional motion in generating processes is described by a polynomial in t of degree n ≤ 6. The variable t corresponds to the cradle angle t = (α-α_m), where α_m is the center roll position.

The aim of these additional motions is to generate flank modifications.