Features of a Near-Surface Tethered Body in Waves and Currents
Abstract
The goal is to investigate the effects of current and irregular waves upon the characteristics of the short surface-wave patterns by moored near-surface objects. A powerful simulation program, developed for the nonlinear dynamics of a coupled cable-buoy system in waves and currents, is applied. Through simulations, it is found that similarly to the regular wave case, the result of cable snapping, chaotic body response and the associated amplification of short-wave generation is also obtained under irregular waves, and in the presence of current. In particular, it is found that due to the increase of viscous damping, the key effect of current is to intensify mode switching in snapping responses and increase the threshold value of the incident wave amplitude for the onset of chaotic buoy motions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 1999
- Accession Number
- ADA373462
Entities
People
- Dick K P Yue
- Michael S Triantafyllou
Organizations
- Massachusetts Institute of Technology