... good, due to the large influence from vicsous roll damping, which is missing in these calculations. This paper proposes a hybrid method, as a solution to this problem, where the viscous roll damping from Ikeda's semi-empirical method is injected into an existing 3D unsteady fully nonlinear potential...

... Ikeda, MLIT Ikeda and K-NET Ikeda). We conducted microtremor measurements with very high density at 200 sites in the grid square of interest (Okawa et al 2017). Based on the obtained measurement records, microtremor H/V spectra are then calculated for each site. PREVIOUS STUDIES In this study, the third...

... prediction vessel motion full-scale roll motion roll motion liquid tank fpso ikeda floating production system subsea system roll prediction inertia roll motion prediction viscous roll free surface Improved Prediction of Full-Scale Roll Motions for Vessels with Large Liquid Tanks Z.J. Huang...

...A Roll Damping Prediction Method for a FPSO with Steady Drift Motion Yoshiho Ikeda Department of Marine System Engineering, Osaka Prefecture University, Osaka,Japan Baharuddin Ali Indonesian Hydrodynamic Laboratory, Surabaya, Indonesia Hisafumi Yoshida Universal Shipbuilding Corporation, Tsu, Mie...

... roll motion proceedings gravity amplitude fpso experiment roll center section breadth subsea system roll angle frequency roll center position phase difference coefficient floating production system ikeda equation Proceedings of the Tenth (2000) International Offshore and Polar...

... on Offshore Structures and Their Effects on the Motion of Floating Bodies John R. Chaplin City University London, United Kingdom Yoshiho Ikeda Osaka Prefecture University Sakai, Japan ABSTRACT This paper presents a brief review of recent research into a few examples from a wide range of problems...

... damping due to vortex shedding phenomena is obtained by experiments or by some prediction methods. Ikeda (1976,1977a,1977b,1978a), one of the authors, proposed a practical method to predict the viscous roll damping moment acting on a conventional cargo ship on the bases of experimental results...