Results 21 to 30 of about 29,621 (297)

Fin control for ship roll motion stabilisation based on observer enhanced MPC with disturbance rate compensation [PDF]

open access: yes, 2021
In this paper, a disturbance observer enhanced model predictive controller (MPC) which compensates for the wave-induced disturbance magnitude and rate is proposed for the ship roll motion stabilisation problem.
Bevan, Geraint; id_orcid   +4 more
core   +1 more source

Extreme value prediction of the roll motion under random seas [PDF]

open access: yesZhongguo Jianchuan Yanjiu
ObjectiveIn this work, two stability failure models, i.e., the dead ship condition and parametric roll are selected in order to study and evaluate ship stability as well as safety at seas.
Jie ZHU, Zailiang LIU, Yan LIN, Wei CHAI
doaj   +2 more sources

Rolling shutter motion deblurring [PDF]

open access: yes2015 IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2015
Although motion blur and rolling shutter deformations are closely coupled artifacts in images taken with CMOS image sensors, the two phenomena have so far mostly been treated separately, with deblurring algorithms being unable to handle rolling shutter wobble, and rolling shutter algorithms being incapable of dealing with motion blur.
Shuochen Su, Wolfgang Heidrich
openaire   +1 more source

Experimental Study on Estimation of Roll Damping for Various Midship Sections [PDF]

open access: yes한국해양공학회지, 2019
The magnitude of the roll motion of a floating structure depends on the roll damping acting on the body. In other words, the roll damping of a floating structure must be accurately obtained in order to precisely evaluate the roll motion.
Byeongwon Park   +5 more
doaj   +1 more source

The results of studies of the rigidity of stabilizers and the roll angle of the truck [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета, 2023
Analyzes the change in the body roll angle during curvilinear motion according to the calculation and modeling options in the Matlab&Simulink system. The increase in the values of the required relative to the set angular stiffness of the suspension is ...
Tint Naing Win, V.M. Alakin
doaj   +1 more source

Rolling and slipping motion of Euler’s disk [PDF]

open access: yesPhysical Review E, 2004
We present an experimental study of the motion of a circular disk spun onto a table. With the help of a high speed video system, the temporal evolution of (i) the inclination angle alpha, (ii) the angular velocity omega, and (iii) the precession rate Omega are studied.
Caps, Hervé   +4 more
openaire   +3 more sources

RESEARCH ON THE MOTION RESPONSE OF AQUACULTURE SHIP AND TANK SLOSHING UNDER ROLLING RESONANCE

open access: yesBrodogradnja, 2022
The double-row and double-chamfered aquaculture tank is a special tank structure of the aquaculture ship. The tank sloshing of this structure is coupled with the hull motion, which has an important impact on the safety of the hull motion.
Li Hui   +4 more
doaj   +1 more source

A FUZZY AHP AND ELECTRE METHOD FOR SELECTING STABILIZING DEVICE IN SHIP INDUSTRY

open access: yesBrodogradnja, 2018
Roll stabilizer systems are studied for different types of ships by many researchers. It is well known that roll motion is caused by external disturbances (wave,wind etc) and large roll motion can cause capsizing easily.
Abit Balin   +3 more
doaj   +1 more source

Research on Roll Stabilizing Based on Energy Optimization for Autonomous Surface Vehicle

open access: yesJournal of Applied Mathematics, 2014
Considering the case of ASV (autonomous surface vehicle) navigating with low speed near water surface, a new method for design of roll motion controller is proposed in order to restrain wave disturbance effectively and improve roll stabilizing ...
Hongjian Wang, Linlin Wang, Lixin Pan
doaj   +1 more source

Multi-level approach for parametric roll analysis

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2011
The present study considers multi-level approach for the analysis of parametric roll phenomena. Three kinds of computation method, GM variation, impulse response function (IRF), and Rankine panel method, are applied for the multi-level approach.
Taeyoung Kim, Yonghwan Kim
doaj   +1 more source

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