... ABSTRACT This study focuses on the hydrodynamic testing of a novel wave-propelled Autonomous and Surface Vehicle (ASV) called Demeter. The main objective of the study is to understand the vehicle performance in different wave conditions and its wave propulsion capability. Experiments were...

... ABSTRACT Propulsion shafting is an important part of the ship, its vibration characteristics directly affect the operating state of the ship. This paper combines the grey system theory with the neural network model to prediction propulsion shafting vibration characteristics. The initial data...

... conditions, and cavitation will reduce the propulsion efficiency of the propeller. INTRODUCTION The pod propulsion is an innovative propulsion system that combines propellers, pod, strut, and electric motor. Compared with the traditional propulsion system, the pod propulsion has higher transmission...

... ABSTRACT The steering and reversing gear is the main component of the water-jet propulsion which can embody the superiority of the manipulation of the water-jet propulsion ship. However, it is difficult to get an accurate input for mechanism structure optimization and hydraulic system design...

... sensor shaft integration transverse vibration vibration information displacement rotational speed displacement signal marine transportation eddy current sensor ship propulsion propulsion shaft torsional vibration acceleration sensor propulsion longitudinal vibration displacement...

... oil film inclination angle bearing rotational speed calculation dynamic condition equivalent displacement alignment effective support position bearing load stiffness optimization deformation propulsion alignment calculation speed region load distribution engineering...

... ABSTRACT This paper reviews different hybrid-electric propulsion modes, i.e., series hybrid, parallel hybrid, and series-parallel hybrid. It then focuses on traditional propeller propulsion, shaftless rim propulsion, and pod propulsion. It mainly distinguishes and compares various propulsion...

... velocity platform polygon calm water wind field host platform sensitivity trajectory experiment velocity vector skid coefficient entry angle propulsion Proceedings of the Thirty-first (2021) International Ocean and Polar Engineering Conference www.isope.org Rhodes, Greece, June 20 25...

... Abstract Flapping-foil thrusters arranged below the hull of the ship are examined for the exploitation of energy from wave induced motions by direct conversion to useful propulsive power. In the framework of Seatech H2020 project (https://seatech2020.eu/) flapping-foil thruster propulsion...

... reservoir simulation thruster static pressure difference flow loss magnetic field mhd thruster flow field effective section propulsion linear-type mhd thruster circular cross-section cross-section electromagnetic force density rectangular cross-section linear channel current...

... CFD Investigations of Ship Propulsion Performance at Different Trim Angles Jianhua Wang1, Decheng Wan1*, Moustafa Abdel-Maksoud2 1 Computational Marine Hydrodynamics Lab (CMHL), State Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong...

... ideas for vector control algorithm of waterjet propelled crafts. single waterjet allocation vector control algorithm longitudinal thrust thrust model nozzle angle control system thrust reverse duct angle waterjet propulsion optimization problem propulsion algorithm objective function...

... solution is selected by means of a dynamic programming optimization algorithm, in compliance with the existing geographical, propulsive and operability constraints. Ship seakeeping and propulsion system is modelled to realistically estimate the propulsion performances and fuel consumption, as well...

... Experimental Study on the Vibration Characteristics of Ship Propulsion Forced by the Hull Deformations Zhe Tian1, Qinghao Lai1, Wei Li2, Zhixiong Li1, Wentao He1, Guijie Liu1 1. College of Engineering, Ocean University of China. Qingdao, Shandong, China 2. Powerchina Huadong Engineering...

... speed. Wave glider is driven by the underwater propulsion device, on which the oscillation angle of fin is the key factor affecting wave energy utilization. In this paper, the optimal rotational angle of fin was analyzed by computer fluid dynamic method (CFD). The hydrodynamic model of underwater...

... Big Data Techniques for Ship Performance Study Alexios Anagnostopoulos Department of Mechanics and Maritime Sciences, Chalmers University of Technology. Gothenburg, Sweden ABSTRACT In this paper a new way to predict the propulsion power through the use of Big Data techniques is presented in order...

... ABSTRACT Based on the ship model test and sea trial, the propulsion characteristics of a water-jet propelled planing monohull is studied. Carrying out towing test in high speed tank, the sailing characteristics of planing monohull is analyzed and the water-jet propulsion system of target ship...

... ABSTRACT Wave propulsion device (WPD) is a device that can directly absorb wave energy and convert it into forward thrust by using an oscillating hydrofoil. The concept of WPD has been proposed for many years and has been proved to be feasible as the dominating or assistant propulsion of ships...

... propulsion ship sea state passenger transportation power gain coordinate system marine transportation fin velocity component matusiak relation thrust power resistance lifting line model ship motion politis propeller feasibility study thrust simulation irregular long-crested...

... % & 7 - 4 - 8 9<, 00+ 2 7 9 8 >AF+ 2 9 4 B 9 3AC+ 2 2 3 C)+ 9! @ - C C/@0F+ 1045 Abstract Wave devouring propulsion system (WDPS) is a device that can directly absorb wave energy and convert...