Analysis and control of aquatic locomotion on robotic fish

Biomimetics has been a vibrant research field over the years with the rationale that natural systems have developed over millions of years of evolution and hence tend to provide better efficiencies. This project is focused on the design and control of a robotic shark. The major aim was to develop th...

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Bibliographic Details
Main Author: Poddar, Rohit
Other Authors: Low Kin Huat
Format: Final Year Project (FYP)
Language:English
Published: 2015
Subjects:
Online Access:http://hdl.handle.net/10356/65217
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author Poddar, Rohit
author2 Low Kin Huat
author_facet Low Kin Huat
Poddar, Rohit
author_sort Poddar, Rohit
collection NTU
description Biomimetics has been a vibrant research field over the years with the rationale that natural systems have developed over millions of years of evolution and hence tend to provide better efficiencies. This project is focused on the design and control of a robotic shark. The major aim was to develop the robot’s body similar to a shark’s both in shape and locomotion. The short-fin MAKO shark was chosen for this project, as the MAKO is the fastest among all shark species. A major part of the project focused on the design of the robot’s body so as to most closely mimic an actual shark. Another facet of the research was to create a locomotion system that would resemble an actual shark’s undulating caudal fin. To achieve this, a cable-based system was used. The students eventually created a skeleton structure for the robot, which was then covered with low-density plastic. The control system was then designed on the Arduino microcontroller aimed at simplicity and faster response time. Experiments were then carried out on this model inside the testing tank. The concept of dynamic lift was used in the robot as it provided better response time than static-based systems. Moreover, the actual MAKO employs a similar mechanism through the use of its pectoral fins. Overall, this report details the design, assembly and control of the robotic shark. It also highlights the key experimental results pertaining to these aspects of the project. However, additional experiments and testing need to be carried out to further optimize the design of this robot and maximize its efficiency.
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spelling ntu-10356/652172023-03-04T18:31:37Z Analysis and control of aquatic locomotion on robotic fish Poddar, Rohit Low Kin Huat School of Mechanical and Aerospace Engineering Robotics Research Centre DRNTU::Engineering::Mechanical engineering::Robots Biomimetics has been a vibrant research field over the years with the rationale that natural systems have developed over millions of years of evolution and hence tend to provide better efficiencies. This project is focused on the design and control of a robotic shark. The major aim was to develop the robot’s body similar to a shark’s both in shape and locomotion. The short-fin MAKO shark was chosen for this project, as the MAKO is the fastest among all shark species. A major part of the project focused on the design of the robot’s body so as to most closely mimic an actual shark. Another facet of the research was to create a locomotion system that would resemble an actual shark’s undulating caudal fin. To achieve this, a cable-based system was used. The students eventually created a skeleton structure for the robot, which was then covered with low-density plastic. The control system was then designed on the Arduino microcontroller aimed at simplicity and faster response time. Experiments were then carried out on this model inside the testing tank. The concept of dynamic lift was used in the robot as it provided better response time than static-based systems. Moreover, the actual MAKO employs a similar mechanism through the use of its pectoral fins. Overall, this report details the design, assembly and control of the robotic shark. It also highlights the key experimental results pertaining to these aspects of the project. However, additional experiments and testing need to be carried out to further optimize the design of this robot and maximize its efficiency. Bachelor of Engineering (Mechanical Engineering) 2015-06-17T01:34:46Z 2015-06-17T01:34:46Z 2015 2015 Final Year Project (FYP) http://hdl.handle.net/10356/65217 en Nanyang Technological University 83 p. application/pdf
spellingShingle DRNTU::Engineering::Mechanical engineering::Robots
Poddar, Rohit
Analysis and control of aquatic locomotion on robotic fish
title Analysis and control of aquatic locomotion on robotic fish
title_full Analysis and control of aquatic locomotion on robotic fish
title_fullStr Analysis and control of aquatic locomotion on robotic fish
title_full_unstemmed Analysis and control of aquatic locomotion on robotic fish
title_short Analysis and control of aquatic locomotion on robotic fish
title_sort analysis and control of aquatic locomotion on robotic fish
topic DRNTU::Engineering::Mechanical engineering::Robots
url http://hdl.handle.net/10356/65217
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