DYNAMICS OF SHIP COLLISIONS

This paper describes a procedure for simulation of the outer dynamics in ship collisions. The simulation procedure is derived using the transient equations for the horizontal motion of a ship. The hydrodynamic forces acting on the ship's hull during the collision are calculated by a strip method, where the forces acting on each section are described by means of unit response functions. These functions are determined by cosine transformation of the sectional dampings. The sectional added masses and dampings, and thereby also the sectional unit response functions, are calculated by an approximate method. The deformations of the ship structures during the collisions are modelled as non-linear springs. The resulting system of non-linear equations is solved using a numerical time-integration procedure. A number of different collision situations are simulated by means of the procedure.

• Corporate Authors:

  Technical University of Denmark

  Department of Ocean Engineering
  2800 Lyngby,   Denmark 
• Authors:
  • Petersen, M J
• Publication Date: 1980-7

Media Info

• Pagination: 45 p.

Subject/Index Terms

• TRT Terms: Crashes; Hulls; Hydrodynamic pressure; Mathematical models; Set forward force; Simulation; Water transportation crashes
• Old TRIS Terms: Collision modeling; Hull response; Hydrodynamic forces
• Subject Areas: Design; Marine Transportation; Safety and Human Factors;

Filing Info

• Accession Number: 00322590
• Record Type: Publication
• Report/Paper Numbers: Rept 185
• Files: TRIS
• Created Date: Nov 19 1980 12:00AM