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Numerical Representation of the Collision Interaction Mass for Dual Riser Systems

[+] Author Affiliations
Euclydes Trovato Neto, Claudio Ruggieri

University of São Paulo, São Paulo, SP, Brazil

José Alfredo Ferrari, Jr.

Petróleo Brasileiro S. A., Rio de Janeiro, RJ, Brazil

Paper No. OMAE2002-28336, pp. 595-604; 10 pages
doi:10.1115/OMAE2002-28336
From:
  • ASME 2002 21st International Conference on Offshore Mechanics and Arctic Engineering
  • 21st International Conference on Offshore Mechanics and Arctic Engineering, Volume 1
  • Oslo, Norway, June 23–28, 2002
  • Conference Sponsors: Ocean, Offshore, and Arctic Engineering Division
  • ISBN: 0-7918-3611-8 | eISBN: 0-7918-3599-5
  • Copyright © 2002 by ASME

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.

Copyright © 2002 by ASME

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