Towing analysis of a slender Pile in a Jack up barge

I would like to study the responses of a slender 50m height pile of 1.2m diameter(in SACS) being transported from yard to the site. The responses such as deflection,mode shapes might be useful.

I have performed a towing analysis and obtained the 6 inertial forces . Modeled the pile separately with exact support conditions and applied the inertial forces to find the response. Whether this kind of idealization could exactly simulate the real behavior? 

Please clarify whether the analysis could be performed in SACS?