This model is able to account for some changes in stiffness characteristics along the length of the shaft .
It can not account for continuous bending of the shaft or any axial deformations ( rotational or translational ) that occur during the swing .
This model is able to account for some changes in stiffness characteristics along the length of the shaft but it can not account for continuous bending of the shaft or any axial deformations ( rotational or translational ) that occur during the swing .