Modelling of 3-axle bogies where the centre wheelset is constrained by roller bearings which allow lateral movement (TM-DOS-124)

Co-Co locomotives often have bogies in which the centre wheelset is allowed a certain amount of lateral movement relative to the axleboxes. This is so that during curving an excessive flange force is not developed at the wheelset, which could lead to possible derailment. This note discusses the ways in...