DYNAMIC INSTABILITY IN QUARTERING SEAS: THE BEHAVIOUR OF A SHIP DURING BROACHING

The dynamic stability of ships encountering large regular waves from astern is analyzed, with focus on delineating the specific conditions leading to the uncontrolled turn identified as broaching. The problem's formulation takes into account motions of the actively steered or controls-fixed vessel in surge-sway-yaw-roll with consideration of Froude-Krylov and diffraction wave excitation. Dynamical analysis of surf-riding is carried out for the general case of quartering waves, exploring the route periodic motions: surf riding, loss of stationary stability, turn, and capsize. Steady-state and transient analysis is carried out in the system's multidimensional state-space in order to identify all existing limit sets and locate attracting domains. Broaching from periodic motions is also a part of the investigation.

  • Supplemental Notes:
    • J Ship Res, v 40 n 1, March 1996, p 46 [14 p, 36 ref, 18 fig]
  • Authors:
    • Spryou, K J
  • Publication Date: 1996

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00728005
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Nov 4 1996 12:00AM