Search results for "MAS500"
showing 10 items of 47 documents
A Self-Contained Electro-Hydraulic Cylinder: Modeling, Control Design, Simulation and Experimental Validation
2018
Master's thesis Mechatronics MAS500 - University of Agder 2018 In the constant effort to improve the efficiency of hydraulic systems, the pressure drop over hydraulic valves has been one of the major obstacles. In the Self-Contained Electro-Hydraulic Cylinder, the directional valve and the hydraulic power unit have been replaced by a bi-directional axial piston pump and a Permanent Magnet Synchronous Motor. Actuation of the cylinder is performed by controlling the direction of rotation and the velocity of the motor. Originally the purpose of this project was to: "Design a proper control algorithm for an existing novel selfcontained electro-hydraulic cylinder, implement it on the main boom o…
Design and Stiffness Analysis of a 5-axis Gantry-Tau Milling Machine
2018
Master's thesis Mechatronics MAS500 - University of Agder 2018 The Gantry-Tau is a Parallel Kinematic Machine (PKM) structure that possesses many advantages as a milling machine, where it has a low moving mass, high stiffness and a large workspace to footprint ratio. This thesis presents a new milling machine design based on this structure, as a continuation of a formerly constructed prototype, see [1]. This includes selection of new actuators for the linear drives as well as the development of a new tool platform and two joint concepts. A short workspace analysis is presented on the proposed design, which includes calculation of valid workspace and an analysis on the required joint mobilit…
Design and Development of a Multi-Mode, Two-Wheeled, Self-Balancing Service Platform
2019
Master's thesis Mechatronics MAS500 - University of Agder 2019 This thesis covers the design and development of a multi-mode, two-wheeled, self-balancing serviceplatform. The purpose of such a platform is to assist people with transportation tasks in crowdedspaces like airports by consuming as little space as possible and minimizing its overall footprint.This is solved by constructing a robot that can transition between bicycle and differential driveconfigurations and keep its balance in both configurations as well as in the transition processbetween them. A two-wheeled, self-balancing robot is an inherently unstable system that can bebased on the theory of an inverted pendulum. The unstabl…
Development of System for Deterrence of Animals using Artificial Intelligence
2021
Master's thesis in Mechatronics (MAS500) This thesis is part of the Mechatronics masters program at the University of Agder (UiA). It describes the development of an animal deterrence system, using computer vision with embedded systems for edge computing. Household cats can run freely around in neighborhoods, but all neighbors may not appreciate it. This project seeks to develop a harmless and accurate system for keeping cats away. The solution is to use a state-of-the-art object detector to look for cats in an area. Using an embedded system to run the object detector and tracking method. Design a two-axis turret with servo motors and a camera. The object detector used for this project was …
Implementation of Wireless Sensors on Torque Wrench
2018
Master's thesis Mechatronics MAS500 - University of Agder, 2018 Konfidensiell til / confidential until 01.07.2023
Design, Modelling and Simulation of Electro-Hydraulic Self-Contained Cylinders based on Digital Hydraulics
2018
Master's thesis Mechatronics MAS500 - University of Agder 2018 Nowadays, hydraulic cylinders are mostly powered by a separate HPU and controlled by conventional servo and proportional valves. New trends have been under development the last years. The first trend is self-contained designs where the power unit is integrated in the cylinder design. Digital hydraulics is the second new trend where conventional flow control methods are replaced by simple ON/OFF valves and digital displacement pumps. A totally novel design would be a combination of the two mentioned trends. Designing a hydraulic cylinder that combines both the self-contained method and digital hydraulics is expected to results in…
INTELLIGENT ROBOTIC REHABILITATION THROUGH A HUMAN-ROBOT INTERACTION : A starting point for a robotic infrastructure which can be an aid for physioth…
2021
Master's thesis in Mechatronics (MAS500) This thesis contains a starting point for a robotic infrastructure which can be an aid for physiotherapists by issuing and adjusting assistive or resistive exercises. With added equipment for specialized operations, the Halodi EVEr3 Robot could be utilized as a basis for this kind of infrastructure. When a physiotherapist is performing a lower extremity rehabilitative movement on a patient, theEVEr3 robot could record this behaviour and mimic it for a desired number of repetitions. The design of a prototype is thought to be done safely as a collaboration with healthcare professionals.
Condition monitoring of steel wire ropes
2018
Master's thesis Mechatronics MAS500 - University of Agder 2018 By utilising the measurements from a commercial acoustic emission sensor system, magnetic tester and a camera system, conducted during four separate simple bending fatigue tests of steel wire ropes (SWR), several measurable quantities of the SWR which indicate deterioration were identi ed. Based on the measurements of a commercial acoustic emission sensor system of one of the tests in this thesis, the fatigue process of a SWRs in a simple bending test is three-phase, with a relatively long rstand second phase, showing little- and steady increase in activity, respectively, followed by a shorter phase with a ramp up of activity. T…
Modeling, Simulation and Control for Marine Crane Operations
2020
Master's thesis in Mechatronics (MAS500) Marine cranes play an important part in offshore operations. They are expected to perform awide range of different tasks, such as handling the load safely offshore. Nowadays, the offshoreoil fields and wind farms are detected and developed, thus more and more offshore platforms arebuilt. The scale and capacity of crane vessels are developing rapidly to fulfill the construction needof offshore platforms and offshore wind farms. Heavy crane, placed on-board vessel, is affected byvessel motions induced by environmental forces such as wind, waves and current, and vice versa.Therefore, the investigation of coupled dynamics between heavy crane and vessel, …
Computer-Based Environment for Lower Limb Neurorehabilitation and Assessment Biomechatronic System for Human Machine Interconnection through Motion P…
2020
Master's thesis in Mechatronics (MAS500)