Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 28 for “"Motor design"”.
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Self-bearing motor design & control
This thesis presents the design, implementation and control of a new class of self-bearing motors. The primary thesis contributions include the design and experimental demonstration of hysteresis self-bearing motors, novel segmented stator structures, MIMO loop shaping control algorithm for …
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Motor Design and Control for Scalable Distributed Actuation
Machine design is often constrained to a limited number of controllable degrees of freedom due to the cost and complexity associated with integrating large numbers of actuators. This thesis explores the hardware and control development for a motor architecture designed for distributed actuation, …
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FRACTIONAL-SLOT CONCENTRATED-WINDING SURFACE-MOUNTED PERMANENT MAGNET MOTOR DESIGN AND ANALYSIS FOR IN-WHEEL APPLICATION
… working area on efficiency map where electric motor works for the most time. Thus, two motivations are proposed: first, to evaluate the efficiency map of electric motor analytically, second, to design an electric motor whose maximum efficiency area on efficiency map covers its regular working …
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Optimization of transverse flux motor for utilization in bionic joints
… prosthesis technology over the past decade, design limitations of commercial electric motors are one of the main bottlenecks in meeting critical device requirements, such as minimum range on a single battery charge and acoustic emission restrictions. Traditional motor design focuses on motor …
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Integrated Design of Solid Rocket Powered Vehicles Including Exhaust Plume Radiant Emission
… However, it is often not considered during the design phase, despite significant couplings with other vehicle disciplines, especially propulsion. Considering plume radiant emission during the design phase is important for ensuring vehicle design constraints and objectives can be met while …
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Mechanical design of high frequency, high power density electric machine
… power density (> 13 kW/kg), MW level electric motor design for the application to augment the power of turbo engines on future 737 class hybrid-electric aircrafts. The thesis will focus on the mechanical design for the innovative motor architecture, in order to facilitate an interdisciplinary …
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CRYOGENIC ATOMIC FORCE MICROSCOPE FOR CHARACTERIZATION OF NANOSTRUCTURES
In this thesis, we present the design and applications of a cryogenic atomic force microscope (AFM) for characterization of nanostructures. The cryogenic AFM with a conductive tip can measure DC current through nanostructures. We use quartz tuning fork (QTF) as the force sensor. Unique coarse z …
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An investigation of didactic energy transfer systems
… and provides experience in analysis and design of electrical and mechanical engineering systems. There was interest in developing a series of new laboratory experiments that would demonstrate methods of energy conversion to students. The experiments are focused on the topic of energy …
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Modeling and characterization of a voice coil motor
… thesis describes the development of a voice-coil motor that will allow viscous fluids to be delivered via a portable needle-free injection device. The chosen motor design features opposing magnets whose flux is channeled across the air gap by a center radial magnet, thus creating a higher flux …
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Design study of hybrid excitation flux switching motor for electric vehicles
Hybrid excitation flux switching motor (HEFSM) is an attractive features compared to interior permanent magnet synchronous motor (IPMSM). The hybrid excitation is applied in this project to gain the high torque of the system. This is because the flux was achieved from both permanent magnet and …
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Mechanical design and validation of 1 MW permanent magnet synchronous machine (PMSM)
… density (8 hp/lb), 1 MW power output electric motor design to double the power density of electric machines, bringing us closer to electrified propulsion. This thesis focuses on the mechanical analysis and design for a specially designed 1 MW permanent magnet synchronous electric machine. First …
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Design Optimization Of Solid Rocket Motor Grains For Internal Ballistic Performance
… the application of optimization tools to the design of solid rocket motor grains per internal ballistic requirements. Research concentrated on the development of an optimization strategy capable of efficiently and consistently optimizing virtually an unlimited range of radial burning solid …
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Design of a Formula SAE electric powertrain
The design requirements for the new electric powertrain were the ability to deliver the peak power of 80kw allowed by rules and meet the mass goal of 23kg. Rear wheel independence needed to be maintained either through a multi-motor design or a differential, but with vehicle performance in mind. …
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Linear iron-core permanent magnet motor with high force and low acoustic noise
… electric machines including variable-reluctance motors, induction machines, and permanent magnet synchronous motors. The severity of this problem depends on the types of motors and their applications. One exemplary case where the vibro-acoustic noise becomes especially detrimental is iron-core …
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Development of a vehicle robotic driver with intelligent control system modelling for automated standard driving-cycle tests
… and brake pedals control systems modelling and design for automatic transmission vehicle are implemented, with Fuzzy model reference adaptive control (Fuzzy MRAC) as the main controller. The vehicle model was developed using black-box modelling approach where simulations are performed based on …
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New Optimal High Efficiency Dsp-based Digital Controller Design For Super High-speed Permanent Magnet Synchronous Motor
… digital controller and switch mode power supply design for super high-speed permanent magnet synchronous motors (PMSM). The PMSMs are a key component for the miniaturic cryocooler that is currently under development at the University of Central Florida with support from NASA Kennedy Space Center …
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Hydrodynamics Of Drops And Particles Driven By Marangoni And Diffusiophoretic Forces
… In the first part, a novel colloidal motor design driven by surface tension forces is proposed, utilizing an active Janus particle encapsulated in an immiscible liquid drop to form a compound drop/particle. Marangoni forces induced by asymmetric solute adsorption at the liquid-liquid …
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The Design, Fabrication, and Modeling of a Piezoelectric Linear Motor
The focus of this research was to create a linear motor that could easily be packaged and still perform the same task of the current DC motor linear device. An incremental linear motor design was decided upon, for its flexibility in which the motor can be designed. To replace the current motor it …
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A Method for Evaluating the Application of Variable Frequency Drives with Coal Mine Ventilation Fans
… fan operates at a constant speed dictated by its motor design. The angles of the blades are adjusted to change the amount of airflow and pressure to meet ventilation requirements. Typically, the fan does not operate at its optimum efficiency, which only occurs in a narrow band of air pressures and …
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