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 343 for “"winding"”.
-
Modeling of Thermoplastic Composite Filament Winding
Thermoplastic composite filament winding is an on-line consolidation process, where the composite experiences a complex temperature history and undergoes a number of temperature history affected microstructural changes that influence the structure's subsequent properties. These changes include …
-
Modelling of the filament-winding fabrication process
A stress model of the filament-winding fabrication process, previously implemented in a finite element program, was improved. Pre- and post-processing codes were developed to make the program easier and more efficient to use. A program which is used to design filament wound composite rocket motor …
-
Automated Manipulation for the Lotus Filament Winding Process
<p>The filament-winding process produces quality consistent composite parts for many industries. Filament winding allows for consistent quality parts by automating the winding process. A recent development of filament winding is the Lotus process. The Lotus process reverses conventional filament …
-
Accuracy-speed relationships of a robotic filament winding cell.
… and the development of a robot based filament winding cell. The cell was implemented using an industrial robot (ASEA IRB 6/2) and an in-house mandrel drive mechanism, both being coordinated by a personal computer. Filament winding is a process in which continuous fibres are placed on a rotating …
-
Modeling, Implementation, and Simulation of Two-Winding Plate Inductor
… boards (PCB). The coupled inductors with winding layers sandwiched between two core plates are studied in this dissertation in order to model the self-inductance, winding loss, and core loss. The most challenging task for the plate-core inductor is to model the magnetic field with finite …
-
Finite element modeling of the filament winding process using ABAQUS
A comprehensive stress model of the filament winding fabrication process, previously implemented in the finite element program, WACSAFE, was implemented using the ABAQUS finite element software package. This new implementation, referred to as the ABWACSAFE procedure, consists of the ABAQUS software …
-
Analysis of Two-Phase Servomotor With Small Fraction of Sine Wave of Current Applied to Control Winding and Reference Winding Supplied From a Sinusoidal Current Source
Made available in DSpace on 2014-12-08T22:23:21Z (GMT). No. of bitstreams: 1 6406033.pdf: 2724043 bytes, checksum: 1da2fd7a5871663a186108cdf9265e3b (MD5) Previous issue date: 1963
-
Constant-Flux Inductor with Enclosed-Winding Geometry for Improved Energy Density
… cells of magnetic material and distributing the windings properly can successfully make the flux density distribution uniform and thus significantly improve the power density. Compared with a conventional toroidal inductor, the constant-flux inductor introduced herein has an enclosed-winding …
-
Modulation and control strategies for multilevel five-phase open-end winding drives
… are considered in recent years. The open-end winding drives are an alternative approach for drives construction. This thesis investigates carrier based pulse width modulation schemes for five-phase open-end winding drives. Two drive topologies, with isolated dc-links of two inverters, are …
-
Increasing Electric Machine Power Density With a New End-winding Cooling System
… are usually used to remove heat coming from the windings and the laminations. However, this limits the maximum power density as the coolant is far away from the slots. Moreover, this radial heat transfer through the lamitations causes the end-windings to be the main hot-spot of the motor. Today, …
-
Fundamentals of Machine Design and Manufacturing: Design of a Compliant Winding Machine
<p>A Sparton Electronics Compliant Winding Machine has been redesigned for improved performance. Thorough study of the existing machine identified issues such as the inconsistent diameter and pitch of the compliant wind, outdated equipment, as well as safety and ergonomic issues. A comprehensive …
-
The long and winding road to reflexology: A post-structural narrative inquiry
… and tumultuous journey travelling a long and winding road, experiencing times of interest and intrigue alongside suspicion and doubt. This study explores the topic through a post-structural lens to discover new possibilities for the discipline. Methodology: The research design used a narrative …
-
The characteristic of frequency response on winding faults and configurations of transformer
… presents a study on the monitoring of several winding configurations of power transformers using Frequency Response Analysis (FRA). The frequency response provides indications of any mechanical and electrical changes in the transformer’s active parts. Three units of three-phase transformers …
-
Partial discharge analysis of a candidate winding used in electric aircraft propulsion
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-08-01
-
Design and development of an automated fiber optic gyroscope coil winding machine
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997.
-
Enhancement and development of an automated fiber optic gyroscope coil winding machine
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1998.
-
Molding and filament winding of spatially graded material properties through computational design
… molding and casting and crafted filament winding, this processes allows for the gradation of material properties in a low cost and fast process. Then, I applied this method to two design scenarios, a mid-sole for a running shoe and a prosthetic socket for trans-tibial amputees. The thesis …
-
Lorentz force actuator and carbon fiber co-winding design, construction and characterization
Carbon fiber composites are materials that present many benefits to engineering applications, ranging from aerospace to medicine. This thesis provides background on carbon fiber properties and manufacturing techniques, and outlines the methodology for manufacturing a co-wound carbon fiber and …
-
An analysis of the winding of textile yarns in optimum package form
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1957.
Page 1 of 18