0
RESEARCH PAPERS: Offshore Mechanics

The Dynamics of Marine Vehicles With Inflectional Righting Moment Curves

[+] Author and Article Information
M. H. Patel, J. A. Witz

Department of Mechanical Engineering, University College London, London, U.K.

J. Offshore Mech. Arct. Eng 109(4), 335-344 (Nov 01, 1987) (10 pages) doi:10.1115/1.3257029 History: Received April 30, 1986; Revised November 02, 1986; Online October 30, 2009

Abstract

This paper investigates modifications to the dynamics of a marine vehicle caused by a point of inflection in its hydrostatic righting moment curve. Such inflections are shown to yield multiple equilibrium angles due to static over turning moments and to the occurrence of a classical fold catastrophe. Both frequency domain analyses and numerical solutions of the equation of roll motion are used to evaluate the influence of such inflections on the vessel’s dynamics. The analyses demonstrate that inflectional righting moment curves can yield unexpected roll amplitude jump phenomena close to resonance. The paper concludes with a discussion of the effects of such behavior on vessel hull designs.

Copyright © 1987 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In