Design and Study of a New Wave Actuator for a Boat
Source abstract
Abstract
The design and analysis of a new wave actuator for boats is presented in this paper. The wave actuator is installed beneath the boat hull and converts the hydrodynamic forces generated by rising waves on the boat into translational thrusting forces. The wave actuator consists of a flexible water tank, revolving springs, and inlet/outlet nozzles to enable passive wave-driven thrust generation without intermediate energy conversion. The compressed water in the tank of the wave actuator is expelled by the wave pressure exerted on the actuator, and the water thrust out of the nozzles propels the boat forward. The dynamics and hydrodynamics of the new wave actuator are newly modelled using second-order differential equations in this paper. The hydrodynamics of the boat with the wave actuator is mathematically analyzed, and the energy conversion capability of the wave actuator is analyzed. The results demonstrate that at a wave frequency of 0.3 Hz, the system achieves a cruising speed of 6.098 m/s and a high energy conversion efficiency of 67.9%. These findings highlight the actuator’s potential for efficient and sustainable marine propulsion in regular sea conditions.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Wave and Wind Energy Systems · Ship Hydrodynamics and Maneuverability · Fluid Dynamics Simulations and Interactions
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Mechanical Engineering, Korea Maritime and Ocean University, Busan 49112, Republic of Korea
Interdisciplinary Major of Ocean Renewable Energy Engineering, Korea Maritime and Ocean University, Busan 49112, Republic of Korea
Department of Artificial Intelligence and Robotics, Sejong University, Seoul 05006, Republic of Korea
Sea Power Reinforcement Security Research Department, Korea Institute of Ocean Science & Technology, Busan 49111, Republic of Korea
Funding
Ministry of Oceans and Fisheries, Korea · Development of mobile laser hull cutting equipment for rapid lifesaving in case of ship capsize
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