Hi Friends, I HAVE TO APPLY LOAD (FORCE PER UNIT AREA) ON THE ALL FLANK OF SLINE TOOTH & LOAD SHOULD BE ALWAYS NORMAL TO THE TOOTH FLANK BUT IN THE LOAD OPTIONS, WE HAVE DIRECTION & MAGNITUDE. PLEASE SUGGEST ME THE OPTION, WHICH I HAVE TO SELECT ? WHAT IS THE ROLE OF CYLINDRICAL CORDINATE IN THIS KIND OF ANALYSIS ?