scholarly journals Parametric Modelling of Biomimetic Propulsion Systems for Underwater Vehicles

2022 ◽  
pp. 174-180
Author(s):  
Biali F. Lima Rodríguez ◽  
Edisson A. Naula ◽  
Ciro A. Rodríguez ◽  
J. Israel Martínez López
Keyword(s):  
Underwater Vehicles ◽  
Parametric Modelling ◽  
Propulsion Systems

scholarly journals Research, Design and Development a Model Solar Autonomous Underwater Vehicles

2021 ◽  
Vol 9 (9) ◽  
pp. 1217-1223 ◽  
Keyword(s):  
Solar Energy ◽  
Autonomous Underwater Vehicle ◽  
Autonomous Underwater Vehicles ◽  
Main Tool ◽  
Underwater Vehicles ◽  
Energy Problem ◽  
Propulsion Systems ◽  
Marine Economy ◽  
Computational Fluid Dynamics Cfd ◽  
The Military

Autonomous Underwater Vehicle (AUV) has become the main tool for exploring the oceans in the fields of science, the military and the marine economy... However, the energy problem for AUV has always been of interest to many researchers. AUV’s missions are time-limited by constraints of onboard vehicle power. Most missions are therefore short, from 4 to 15 hours duration. Solar energy is an effective renewable energy source and has increasingly been used in many fields. We can see that if the Solar Autonomous Underwater Vehicles (S-AUV) has the little surface area then the efficiency of solar collector is low. Hence, we need to optimize the structure of S-AUV. When designing a SAUV in particular and an AUV in general, one of the first concerns is structural shapes, energy and propulsion systems. However, the problem for S-AUV shaped structure is extremely important, requiring the designer to optimize between increased size solar wing and collected solar energy. This paper discusses the use of Computational Fluid Dynamics (CFD) to determine the resistance of S-AUV when receiving solar energy. Reducing the drag and increasing the ability while collecting solar energy are the purpose of this research. The authors developed a model of S-AUV with retractable wings and evaluate the efficiency of solar energy collection. The hydrodynamic equations with the predefined conditions were modeled and solved

Design and Rapid Manufacturing Structural Components of a Mini-Scale Underwater Vehicle

2011 ◽  
Vol 383-390 ◽  
pp. 6352-6356
Author(s):  
Yih Lin Cheng ◽  
Rui Dong Chang
Keyword(s):  
Rapid Prototyping ◽  
Underwater Vehicle ◽  
Underwater Vehicles ◽  
Rapid Manufacturing ◽  
Structural Components ◽  
Propulsion Systems ◽  
Limited Space ◽  
Rapid Manufacture ◽  
Control Modules ◽  
Underwater Exploration

Underwater vehicles have been developed mainly for underwater exploration and rescue. Many large- and middle-size vehicles are available but few are in smaller scale. As the size goes into mini-scale which is less than 20 cm, it is challenging to allocate required components within limited space, while providing designed functions at the same time. The aims of this research are to design and rapid manufacture structural components for a remote-controlled underwater vehicle in the mini-scale region. The vehicle would integrate vision capability to provide functions of underwater ecological observation and tracking. In order to design the structural components for this mini-scale vehicle, commercial CFD software was adopted to simulate flows. An improved external shape was obtained and detailed designs of the structural components were implemented. A rapid prototyping technique, Shape Deposition Manufacturing (SDM) process, was utilized to rapidly manufacture these components. The finished components were assembled with control modules and propulsion systems as an underwater vehicle and the preliminary underwater test was conducted successfully.

Redundant and reconfigurable propulsion systems to improve motion capability of underwater vehicles

2018 ◽  
Vol 148 ◽  
pp. 376-385 ◽  
Author(s):  
Luca Pugi ◽  
Benedetto Allotta ◽  
Marco Pagliai
Keyword(s):  
Underwater Vehicles ◽  
Propulsion Systems

scholarly journals Innovative Energy-Saving Propulsion System for Low-Speed Biomimetic Underwater Vehicles

Energies ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 8418
Author(s):  
Paweł Piskur ◽  
Piotr Szymak ◽  
Michał Przybylski ◽  
Krzysztof Naus ◽  
Krzysztof Jaskólski ◽  
...  
Keyword(s):  
Underwater Vehicle ◽  
Underwater Vehicles ◽  
Propulsion System ◽  
Forward Movement ◽  
Propulsion Systems ◽  
Low Speed ◽  
Structure Interaction ◽  
Fluid Velocities ◽  
Different Types ◽  
Oscillation Frequencies

This article covers research on an innovative propulsion system design for a Biomimetic Unmanned Underwater Vehicle (BUUV) operating at low speeds. The experiment was conducted on a laboratory test water tunnel equipped with specialised sensor equipment to assess the Fluid-Structure Interaction (FSI) and energy consumption of two different types of propulsion systems. The experimental data contrast the undulating with the drag-based propulsion system. The additional joint in the drag-based propulsion system is intended to increase thrust and decrease energy input. The tests were conducted at a variety of fins oscillation frequencies and fluid velocities. The experiments demonstrate that, in the region of low-speed forward movement, the efficiency of the propulsion system with the additional joint is greater.

scholarly journals Design, Construction, and Modeling of a BAUV with Propulsion System Based on a Parallel Mechanism for the Caudal Fin

2020 ◽  
Vol 10 (7) ◽  
pp. 2426
Author(s):  
Cristina Tehaní Aparicio-García ◽  
Edisson A. Naula Duchi ◽  
Luis E. Garza-Castañón ◽  
Adriana Vargas-Martínez ◽  
J. Israel Martínez-López ◽  
...  
Keyword(s):  
Parallel Mechanism ◽  
Autonomous Underwater Vehicles ◽  
Underwater Vehicles ◽  
Kinematics And Dynamics ◽  
Dynamics Analysis ◽  
Spherical Joint ◽  
Propulsion Systems ◽  
Caudal Fin ◽  
Motion Study ◽  
Design Construction

Traditional propulsion systems for autonomous underwater vehicles (AUVs) have several deficiencies, such as the invasion of the aquatic environment through the generation of noise and damage to the ecosystem, higher energy consumption, and a unidirectional thruster vector. The last characteristic constrains the maneuverability of the vehicle. This paper proposes a 3-DOF spherical 3 universal–cylindrical–universal and 1 spherical joint (3UCU-1S) parallel mechanism coupled to an artificial caudal fin to produce a vectored thruster for a biomimetic AUV (BAUV). First, the design and construction of the prototype are described. Then, the kinematics and dynamics analysis of the parallel mechanism is presented. Finally, a motion study shows the types of movements that can be achieved with the mechanism to perform flapping of the caudal fin in different directions.

Manufacture of Propulsion Systems for Micro Underwater Vehicles

2006 ◽  
Author(s):  
Yih-Lin Cheng ◽  
Yu-Shen Shen ◽  
Jiang-Hong Lin
Keyword(s):  
Underwater Vehicle ◽  
Underwater Vehicles ◽  
Propulsion System ◽  
Outer Diameter ◽  
Propulsion Systems ◽  
Minimum Width ◽  
Valveless Micropump ◽  
Blade Thickness ◽  
Micro Pump ◽  
Micro Channels

Underwater vehicles have been used in many ocean exploration and rescue applications. Recent researches are trending toward the vehicle’s application in smaller regions. As size of the parts decreases, challenges exist in the manufacturing of critical components which are hard to obtain commercially. This paper focuses on developing the propulsion systems of the micro underwater vehicle, and exploring the feasibility of the manufacturing. The target hull size of the micro underwater vehicle that the propulsion systems use is less than 50×30×30mm. In this research, two types of propulsion systems, propeller-type and jet-type, were investigated. In the propeller-type propulsion system, a propeller with the selected electric motor was designed to generate sufficient thrust, and the blade section was based on NACA four-digit airfoils. The outer diameter of the propeller is 25 mm with a minimum blade thickness of 0.9 mm. The thin 3D blade geometry is hard to achieve by traditional manufacturing approaches. As a result, Shape Deposition Manufacturing (SDM) process, a layered manufacturing technique, was used to generate the complex 3D propeller. The thrust performance of the fabricated propeller was also compared with the theoretical thrust. The jet-type propulsion system utilized the concept of piezoelectric-actuated valveless micro-pump, and a special design with 3 inlets from the side and one outlet in the back was implemented in order to satisfy the micro underwater vehicle application. The 3D geometry of the channel with minimum width of 80 μm creates great challenges in fabrication and poses difficulty when done by traditional micro fabrication techniques. SDM process is also applied to manufacture the chamber and channels of the micropump. The piezoelectric buzzer was attached to the fabricated valveless micropump chamber for testing back pressure and flow rate. This research provides solutions to manufacture propeller-type and jet-type propulsion systems for micro underwater vehicle applications. SDM process was proved to be the suitable approach to generate small complex 3D propellers and a pre-assembled valveless micropump structure with micro channels.

Sign in / Sign up

Export Citation Format

Share Document