ON LARGE ROLLING IN FOLLOWING DIRECTIONAL SPECTRUM WAVES

As well as in beam seas, rolling motion of a running ship becomes large in quartering sea. On the other hand, no rolling motions are expected in following long crested seas within linear theory. But it is well known that nonlinear mechanism induces rolling motions in following seas and in some cases capsising will occur. Other than this, large rolling seems to be exited in following sea condition of short crest within linear phenomena. Experimental and theoretical studies are carried out on the rolling motion in following short crested irregular waves expressed by two-dimensional spectrum, which can be called directional spectrum waves. The experiments were carried out in a long towing tank with a newly developed wave-maker installed at the end which can generate directional spectrum waves.

• Supplemental Notes:
  • STAB 90, Stability of Ships & Ocean Vehicles; 4th Intl Conf; 24-28 Sept 1990; Naples, Italy. Sponsored & Publ by Dept. Naval Engng, Univ. Naples et al. Procs, v 1, p 287 [8 p, 5 ref, 1 tab, 12 fig]
• Authors:
  • Takezawa, S
  • Hirayama, T
  • Acharrya, S
• Publication Date: 1990

Language

• English

Subject/Index Terms

• TRT Terms: Following seas; Rolling; Ship motion
• Old TRIS Terms: Wave forces on ships
• Subject Areas: Hydraulics and Hydrology; Marine Transportation;

Filing Info

• Accession Number: 00700795
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM