No abstract

This work presents a numerical procedure to represent interaction masses for the collision of adjacent risers. The approach is based on the concept that cyclic interaction between two mechanical systems can be described by representative masses which are associated with the energy dissipated during collision. Development of the numerical formulation employs key concepts connected to group theory for mechanical systems to define an expression for the collision interaction mass incorporating the dissipative behavior of each riser system. An application then follows to predict the contact (collision) regions and collision participating masses for a pair of adjacent risers subjected to different load and environment conditions.