71 citations · 251 across the 26 of their papers we have counts for
8 papers · 1 filter
Approximate probability density function for nonlinear surging in irregular following seas
Atsuo Maki, Yuuki Maruyama, Keiji Katsumura +1
The broaching that follows the surf-riding is a dangerous phenomenon that can lead to the capsizing of a vessel due to its violent yaw motion. Most of the previous studies on surf-…
Parameter fine-tuning method for MMG model using real-scale ship data
Rin Suyama, Rintaro Matsushita, Ryo Kakuta +2
In this paper, a fine-tuning method of the parameters in the MMG model for the real-scale ship is proposed. In the proposed method, all of the arbitrarily indicated target paramete…
Nonlinear steering control under input magnitude and rate constraints with exponential convergence
Rin Suyama, Satoshi Satoh, Atsuo Maki
A ship steering control is designed for a nonlinear maneuvering model whose rudder manipulation is constrained in both magnitude and rate. In our method, the tracking problem of th…
Comparison of stochastic stability boundaries for parametrically forced systems with application to ship rolling motion
Atsuo Maki, Yuuki Maruyama, Yaliu Liu +1
Numerous accidents caused by parametric rolling have been reported on container ships and pure car carriers (PCCs). A number of theoretical studies have been performed to estimate…
Data Augmentation Methods of Dynamic Model Identification for Harbor Maneuvers using Feedforward Neural Network
Kouki Wakita, Yoshiki Miyauchi, Youhei Akimoto +1
A dynamic model for an automatic berthing and unberthing controller has to estimate harbor maneuvers, which include berthing, unberthing, approach maneuvers to berths, and entering…
Covariance Matrix Adaptation Evolutionary Strategy with Worst-Case Ranking Approximation for Min--Max Optimization and its Application to Berthing Control Tasks
Atsuhiro Miyagi, Yoshiki Miyauchi, Atsuo Maki +3
In this study, we consider a continuous min--max optimization problem whose objective function is a black-box. We propose a…
Ship trajectory planning method for reproducing human operation at ports
Rin Suyama, Yoshiki Miyauchi, Atsuo Maki
Among ship maneuvers, berthing/unberthing maneuvers are one of the most challenging and stressful phases for captains. Concerning burden reduction on ship operators and preventing…
Development of a Mathematical Model for Harbor-Maneuvers to Realize Modeling Automation
Yoshiki Miyauchi, Youhei Akimoto, Naoya Umeda +1
A simulation environment of harbor maneuvers is critical for developing automatic berthing. Dynamic models are widely used to estimate harbor maneuvers. However, human decision-mak…