Relevant bibliographies by topics / Aerospace / Dissertations / Theses
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Dissertations / Theses on the topic 'Aerospace'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

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1

Figueroa, Leonard J. "Aerospace Intrapreneurship: Systems Engineering an Aerospace Front End." Digital Commons at Loyola Marymount University and Loyola Law School, 2017. https://digitalcommons.lmu.edu/etd/394.

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2

Clark, Thomas William. "Aerospace power converter interfaces." Thesis, University of Manchester, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.514425.

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3

Jenett, Benjamin (Benjamin Eric). "Digital material aerospace structures." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/101837.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 71-76).<br>This thesis explores the design, fabrication, and performance of digital materials in aerospace structures in three areas: (1) a morphing wing design that adjusts its form to respond to different behavioral requirements; (2) an automated assembly method for truss column structures; and (3) an analysis of the payload and structural performance requirements of space structure elements made f
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4

Ashworth, Geoffrey (Geoffrey John). "Architectural disruption in aerospace." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/55202.

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Thesis (S.M.)--Massachusetts Institute of Technology, System Design and Management Program, 2009.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 70-71).<br>Distinctive technology and customer / supplier relationships are currently the primary sources of competitive advantage in the Aerospace industry. Modular Open System Architecture (MOSA) requirements represent a significant disruption to this mode of competition. The United States Department of Defense intends to accelerate the rate of aerospace innovation and inject additional competitiveness into the p
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5

Gostic, William J. (William John) 1957. "Aerospace supply chain management." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/10000.

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6

Pratt, Roger W. "Control problems in aerospace engineering." Thesis, Loughborough University, 1995. https://dspace.lboro.ac.uk/2134/27604.

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Control Engineering is a wide-ranging discipline which offers opportunities in research to people with diverse backgrounds and interests; from applied mathematicians interested solely in developing new theory right through to pragmatic engineers who are closely involved in a particular application. Additionally, for those involved in the application of control methodologies, there are the bonuses of complementing modelling, analysis and design with experimental validation. For my part, work has centred on the application of existing techniques in new areas. Since the early part of my career we
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7

Borman, Stephen. "Sensorless drives for aerospace applications." Thesis, University of Newcastle Upon Tyne, 2012. http://hdl.handle.net/10443/1447.

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This Engineering Doctorate thesis investigates the different implementations and theories allowing drives to control motors using sensorless techniques that could be used in an aerospace environment. A range of converter topologies and their control will be examined to evaluate the possible techniques that will allow a robust and reliable drive algorithm to be implemented. The focus of the research is around sensorless drives for fuel pump applications, with the potential to replace an existing analogue implementation that is embedded in a fuel pump, contained within the fuel tank. The motor c
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8

Delfa, G. L. a. "Aerospace composite materials in fire." Thesis, University of Newcastle Upon Tyne, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.519566.

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9

Falco, James A. (James Anthony) 1955. "Offsets and the aerospace industry." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/10008.

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10

Stimac, Andrew K. (Andrew Kenneth) 1977. "Precision navigation for aerospace applications." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/16676.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2004.<br>Vita.<br>Includes bibliographical references (p. 162). Includes bibliographical references (p. 162).<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Navigation is important in a variety of aerospace applications, and commonly uses a blend of GPS and inertial sensors. In this thesis, a navigation system is designed, developed, and tested. Several alternatives are discussed, but the ultimate design
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11

Bílek, Jan. "Aerospace - Futuristický kokpit moderního letounu." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2010. http://www.nusl.cz/ntk/nusl-237164.

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This work describes the visualization design of the flight related quantities in a cockpit of a modern light sport aircraft. It focuses on the utilization of the state of the art trends in flight data displays and introduces the innovative implementation of the aircraft's energy state smart clues that reduce pilots' workload. The initial part of the work presents a research into the flight, engine and navigation data presentation on analog instruments, followed by their illustrative depiction in glass cockpits. Within the framework of this thesis, Microsoft Flight Simulator has been used as a
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12

Brentari, Mirko. "Hybrid Control For Aerospace Systems." Doctoral thesis, Università degli studi di Trento, 2019. https://hdl.handle.net/11572/368808.

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Hybrid dynamical systems are dynamical systems in which continuous and discrete evolutions coexist and interact. Their twofold nature makes them particularly powerful for both describing and synthesizing complex dynamical behaviors. In this work we exploit this capability for designing innovative control and estimation algorithms that cope with challenges in aerospace applications. In particular: 1. we propose different impulsive control strategies for the problem of close-range rendezvous between two spacecrafts in elliptic orbits; 2. we design a robust time-sub-optimal controller for a class
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13

Brentari, Mirko. "Hybrid Control For Aerospace Systems." Doctoral thesis, University of Trento, 2019. http://eprints-phd.biblio.unitn.it/3666/2/PhDThesisMirkoBrentari.pdf.

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Hybrid dynamical systems are dynamical systems in which continuous and discrete evolutions coexist and interact. Their twofold nature makes them particularly powerful for both describing and synthesizing complex dynamical behaviors. In this work we exploit this capability for designing innovative control and estimation algorithms that cope with challenges in aerospace applications. In particular: 1. we propose different impulsive control strategies for the problem of close-range rendezvous between two spacecrafts in elliptic orbits; 2. we design a robust time-sub-optimal controller for a
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14

Roth, Matthew Adrian. "Vortex lattice methods for aerospace design." Thesis, University of Bristol, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.720833.

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15

Landahl, Olof. "Weather visualization for the aerospace industry." Thesis, Linköpings universitet, Institutionen för teknik och naturvetenskap, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-95274.

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Denna rapport beskriver mitt examensarbete som utfördes på företaget Carmenta AB i Göteborg, hösten 2007. Examensarbetet är den slutgiltiga examinationen för min civilingenjörsutbildning i Medieteknik på Linköpings Universitet. Arbetet gick ut på att undersöka standarder för presentation av väderprognoser för flygtrafik och att implementera lämplig standard i Carmentas kartverktyg SpatialAce. Jag har framställt en studie som går igenom grundläggande teori för flygtrafik och väder, dataformat för lagring och distribution av meteorologisk information samt standarder för visualisering av flygväde
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16

Aouf, Nabil. "Robust control techniques for aerospace vehicles." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=38145.

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The research work presented in this thesis deals with flight control problems. Based on robust control techniques such as H infinity control and mu-synthesis, we develop control laws that are efficient in reducing gust loads on flexible aircraft. Uncertainty models for flexible aircraft are proposed and shown to be well adapted for robust control design, while tightly covering unknown but bounded variations of flexible mode parameters. One of the models presented introduces a new complex-rational controller design methodology that takes advantage of the uncertain plant structure and achieves g
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17

Progoulakis, Losif. "Heated tooling for aerospace composites manufacture." Thesis, University of Plymouth, 2004. http://hdl.handle.net/10026.1/1105.

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The increasingly high capital investment required for large autoclaves, ovens and facilities for the processmg of large composite components creates a number of financial constraints for the development and manufacturing of larger composite aircraft products. This thesis has investigated the use of heated tooling as an alternative to the use of autoclave and oven curing. A design and development methodology for heated tools has been proposed while a number of heated tooling options have been identified and described. Three representative heated tool options using heater mats, electro-conductiv
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18

Butters, Jonathan David. "Terminology recognition in the aerospace domain." Thesis, University of Sheffield, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.575750.

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The objects and phenomena within the world around us are frequently shared. Common understandings, intuition, and common sense allow people to communicate ideas and instructions by identifying the semantics of the words used. When we communicate these ideas through text, we rely on strings of characters to carry semantics, and through these, because of common understandings, intuition, and common sense we are often able to gain back the references to the original ideas. As people's capacity to express their ideas through text is unbounded, the task of deciphering original meanings when synonym
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19

Barker, A. J. "Thin film sensors for aerospace applications." Thesis, Swansea University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636037.

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Since Frank Whittle demonstrated the first flight of an aircraft propelled by a turbo-jet engine in the early 1940's the aerospace industry has moved forward at a tremendous pace. Although the principle of operation of such engines has changed little in this time, their performance has soared. During the design and prototype stage of an engine, fluid dynamics models must be proved to ensure flow conditions do not adversely effect the performance. As an aid to this testing, thin film sensors capable of being fabricated directly on vital components have been designed, constructed and tested, for
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20

Knight, Sylvia Frances. "Natural language processing for aerospace documentation." Thesis, University of Cambridge, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621395.

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21

Ebadan, Gracie E. "Laser welding of selected aerospace alloys." Thesis, Loughborough University, 1989. https://dspace.lboro.ac.uk/2134/7114.

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The literature relating to the laser welding of a number of alloys was studied, this revealed gaps in the current state of knowledge. It was found that no indepth parametric or inicrostructural investigations had been carried out into the laser welding of non-ferrous alloys. Although problems associated with the laser welding of aluminium alloys had been identified, there was little in the literature to suggest an indepth study into the effect of surface modifications in enhancing the laser weldability of this material had been carried out. The laser welding of aluminium based metal matrix com
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22

Kirtley, Aaron L. (Aaron Lloyd) 1977. "Fostering innovation across aerospace supplier networks." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/82696.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and, (S.M.)--Massachusetts Institute of Technology, Engineering Systems Division, Technology and Policy Program, 2002.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>"June 2002." Page 187 blank.<br>Includes bibliographical references (p. 180-184).<br>by Aaron L. Kirtley.<br>S.M.
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23

Ferre, Gregoire 1978. "IT management in the aerospace industry." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/27014.

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Thesis (S.M.)--Massachusetts Institute of Technology, Engineering Systems Division, Technology and Policy Program, 2004.<br>Leaf 95 blank.<br>Includes bibliographical references (leaf 68).<br>(cont.) payoff IT investments. When the North American Aerospace Industry invests less than any other industry in the high risk investments, its foreign counterpart invests more than any other industry. The second major finding is that the governance mechanisms in place are similar in the two Aerospace Industry segments, contrary to the IT Portfolios. IT decisions are made usually by IT executives or busi
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24

Roman, Marco Antonio 1971. "Lean aerospace initiative electronic sector study." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/82680.

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Thesis (S.M.)--Massachusetts Institute of Technology, Sloan School of Management, 2000.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (leaf 75).<br>by Marco Antonio Roman.<br>S.M.
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25

Spendley, Paul R. "Design allowables for composite aerospace structures." Thesis, University of Surrey, 2012. http://epubs.surrey.ac.uk/810072/.

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Recent developments in aircraft design have seen the Airbus A380 and the Boeing Dreamliner employ significant amounts of advanced composite materials. There is some thought however, und the motivation for this current work, that these materials continue to suffer a weight penalty. In this work tests required to generate design allowables which accommodate environmental effects and holes arc performed on Carbon/epoxy quasi-isotropic laminatcs. The test data is treated statistically to provide B-basis allowables for each specimen type and condition. It was seen that the notched specimens (coupon
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26

Ameyugo, Gregorio. "Distributed propulsion and future aerospace technologies." Thesis, Cranfield University, 2007. http://dspace.lib.cranfield.ac.uk/handle/1826/10029.

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This thesis describes an Engineering Doctorate project in Distributed Propulsion carried out from 2004 to 2007 at Cranfield University. Distributed propulsion is a propulsion system arrangement that consists in spreading the engine thrust along the aircraft span. This can be accomplished by distributing a series of driven fans or the engines themselves. The aim of this project is to determine the feasibility of distributed propulsion for civil aviation in the medium term (with small gas turbines) and long term (with driven fans) from a technical and economic perspective. The effect of distribu
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27

RAJYALAKSHMI, P. S., and R. K. RAJANGAM. "FLIGHT INSTRUMENTATION TELEMETRY FOR AEROSPACE APPLICATION." International Foundation for Telemetering, 1986. http://hdl.handle.net/10150/615418.

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International Telemetering Conference Proceedings / October 13-16, 1986 / Riviera Hotel, Las Vegas, Nevada<br>In Aerospace missions it is often required to have a flexible telemetry system for carrying out flight test on aircraft, in which the bit rate, sampling rate and the number of channels can be programmed. This enables the pilot of the aircraft to reconfigure the telemetry system to suit any particular test missions. An L-Band PCM/FM Telemetry System containing a Stored Programme Multiplexer, 12 bit ADC and other digital interfaces for carrying out the measurements on Speed, Events, etc
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28

Farinha, Marques Vitor Manuel. "Lead free solders for aerospace applications." Thesis, University of Oxford, 2010. http://ora.ox.ac.uk/objects/uuid:85707054-bc46-44f3-b9c6-9fd29358ad25.

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The factors controlling the reliability of Pb-free solders when subject to thermomechanical regimes relevant to the harsh aerospace environment have been studied. Ball grid array (BGAs) typical of microelectronic devices have been manufactured in-house and subjected to isothermal ageing and thermal cycling. The BGAs comprised both Cu and Ni-Au metallizations, Pb-free Sn-Ag-Cu 400 and 600&mu;m solder balls, FR4 and Al<sub>2</sub>O<sub>3</sub> boards, and included circuits to measure resistance changes due to damage in the joints during thermal cycling. Microstructural evolution within the solde
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29

Jönsson, Gustav. "Material selection for an aerospace component." Thesis, KTH, Lättkonstruktioner, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-198494.

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In the world of today there is a drive for lighter and more effective products for various reasons e.g. reduced environmental impact, higher payload, fuel efficiency etc. There is also an expanding development of new materials for a large number of different applications. This makes it more and more difficult for engineers to make good material selections. This has led to the development of a large amount of material selection methods that require more or less effort to select material. An effective way to do this is offered by utilisation of material selection software’s like Granta Design CE
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30

Schäfer, Lukas Matthias. "Design of reliable aerospace system architecture." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31391.

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Reliability and redundancy of safety-critical network systems is a paramount issue in system engineering. Be it in evaluating existing network systems or solving optimization problems for designing network systems, it is important to consider reliability and redundancy. This dissertation is in collaboration with AIRBUS Group, France, and they are very interest in the optimal design of safety-critical aircraft architecture systems which have to consider reliability and redundancy. To address the problem of optimally designing such systems, we chose to focus on one specific aircraft architecture
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31

Yeremenko, Roman, and Valeri Badakh. "Public access data in aerospace industry." Thesis, ORT Publishing, 2019. http://er.nau.edu.ua:8080/handle/NAU/40228.

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In industries like an aerospace engineering a large amount of researches is funded by the corporations, which grant special access to the specific documentation and data to affiliated scientists and may provide internship to affiliated universities students. The downside of above-mentioned model is that it might complicate the researches that require general statistical design and/or performance data from the wide range of products (such as aircrafts or helicopters), thus complicating predictions of trends in the field, which could be detrimental to conceptual advancement of aerospace engineer
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32

Hanuska, Alexander Robert Jr. "Thermal Characterization of Complex Aerospace Structures." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/36617.

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Predicting the performance of complex structures exposed to harsh thermal environments is a crucial issue in many of today's aerospace and space designs. To predict the thermal stresses a structure might be exposed to, the thermal properties of the independent materials used in the design of the structure need to be known. Therefore, a noninvasive estimation procedure involving Genetic Algorithms was developed to determine the various thermal properties needed to adequately model the Outer Wing Subcomponent (OWS), a structure located at the trailing edge of the High Speed Civil Transport's (
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33

Hamad, Baran, and Markus Englund. "Improved Release Mechanisms for Aerospace Applications." Thesis, Uppsala universitet, Tillämpad mekanik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-448399.

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Hold down release mechanisms (HDRMs) are used for tightly attaching segments of bodies together when it is desired to release them rapidly at some point. When transporting sensitive payloads on launch vehicles, the challenge arises of releasing the fastened segments of the spacecraft without risking damage to the costly equipment. Non-explosive HDRMs are favourable from a safety perspective as there is a lower risk of producing potentially destructive shock-waves throughout the structure.  One variant of a non-explosive HDRM uses a so called 'split spool initiator'. This initiator can only be
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34

Saotome, Tsuyoshi. "Transparent polymer nanocomposites for aerospace applications." Diss., Restricted to subscribing institutions, 2009. http://proquest.umi.com/pqdweb?did=1970611211&sid=54&Fmt=2&clientId=1564&RQT=309&VName=PQD.

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35

Riva, Sephira. "Scandium metal processing for aerospace application." Thesis, Swansea University, 2018. https://cronfa.swan.ac.uk/Record/cronfa39867.

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The use of scandium has been conventionally restricted to minor additions in alloys for structural applications. The term ‘scandium effect’ came thus to indicate the properties improvements caused by the precipitation of scandium intermetallics in the matrix. The development of High-Entropy Alloys (HEA, multi-principal component alloys combining compositional complexity with simple crystal structures) opened the door for the development of new systems, and therefore for new applications for lightweight metals such as scandium. This work is a thorough investigation of the potential of scandium-
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36

Frauenberger, Douglas H. "Lean transformation in aerospace assembly operations." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/39728.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and, (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management; in conjunction with the Leaders for Manufacturing Program at MIT, 2007.<br>Includes bibliographical references (p. 81-82).<br>For the past two decades, virtually all manufacturing companies in the United States have adopted or are in the process of adopting lean manufacturing. Globalization has resulted in the increased availability of reliable, low cost sources putting greater pressures on traditional US manufacturing companie
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McQuarrie, Allan J. (Allan John) 1963. "Fire fighting in aerospace product development : a study of project capacity and resource planning in an aerospace enterprise." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/29535.

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Thesis (S.M.)--Massachusetts Institute of Technology, System Design & Management Program, 2003.<br>Includes bibliographical references.<br>It is broadly recognized in the aerospace industry, as well as many others, that organizations which effectively execute development projects to meet desired cost, schedule, and performance targets for their customers produce higher levels of customer satisfaction and also a significant source of competitive advantage. Continually meeting the needs of the customer through effective project execution allows a company to become a preferred supplier favored in
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Liaghati, Amir, Nick Chang, Mahsa Liaghati, and John Blumer. "PREDICTIVE TELEMETRY MODELS FOR AEROSPACE FLIGHT MISSIONS." International Foundation for Telemetering, 2017. http://hdl.handle.net/10150/627017.

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Designing an efficient telemetry system is one of the most challenging tasks in the aerospace industry due to the limited telemetry bandwidth and the restricted radio frequency spectrum allocation. In a traditional telemetry system design, a large percentage of the allotted bandwidth is consumed by the overhead information to follow various standards and protocols which results in inefficiency of output data. A dynamic simulation model is created by using the Matlab/Simulink to analyze the telemetry system performance, and it is also used to predict the overall downlink data, including sensor
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Strubel, Vincent. "Particle entrapment in EHD contacts - Aerospace applications." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI098/document.

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Une lubrification suffisante est essentielle au bon fonctionnement des mécanismes et/ou composants comme par exemple les paliers à roulement. Par contre, les lubrifiants contiennent souvent des débris d’usure ou des polluants extérieurs. Ces particules micrométriques peuvent pénétrer des contacts d’épaisseur inférieure au micromètre induisant des empruntes ou indents pouvant conduire à des endommagements irréversibles pour les surfaces en contact. L’objet de ce travail est l’étude du piégeage de polluants solides à l’aide de particules sphériques d’acier, d’un point de vue théorique, numérique
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White, Caleb, and caleb white@rmit edu au. "Health Monitoring of Bonded Composite Aerospace Structures." RMIT University. Aerospace, Mechanical and Manufacturing Engineering, 2009. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20090602.142122.

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Airframe assemblers have long recognised that for a new aircraft to be successful it must use less fuel, have lower maintenance requirements, and be more affordable. One common tactic is the use of innovative materials, such as advanced composites. Composite materials are suited to structural connection by adhesive bonding, which minimises the need for inefficient mechanical fastening. The aim of this PhD project was to investigate the application of existing, yet immature Structural Health Monitoring (SHM) techniques to adhesively bonded composite aerospace structures. The PhD study focu
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Letovsky, Robert. "Public policy and the Quebec aerospace sector." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ47721.pdf.

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42

Levedahl, Blaine Alexander. "Decentralized Autonomous Control of Aerospace Vehicle Formations." NCSU, 2003. http://www.lib.ncsu.edu/theses/available/etd-03062003-104749/.

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Two approaches for the autonomous control of aerospace vehicle formations are developed. The development of the approaches relies on fundamental work in the areas of distributed control; specifically modal, robust, optimal, and decentralized control. The algorithms are shown to satisfy five separation principles that simplify design and enable the algorithms to be implemented reliably. The autonomous controllers uniformly dampen the modes of the formation (global control) using a decentralized approach and a nearest-neighbor approach. A numerical example illustrates robust formation changes fr
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Marvasti, Mazda Alim. "Applications of fractal geometry in aerospace engineering." Diss., Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/12079.

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44

Lazim, Duraid. "Springback in draw-bending on aerospace alloys." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=79244.

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The springback phenomenon was studied by a series of draw-bend tests. These tests were done by varying the blankholding pressure with different lubrication conditions, and with different transverse anisotropy directions. The purpose is to find the forming loads, the thickness changes and the springback angles. It has been found that the springback angle after unloading depends on the amount of blankholding pressure, the material properties, and the tool geometry. Increasing the blankholding pressure almost eliminates the springback if the tensile stress caused by the blankholding pressu
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Ma, Weitao. "Cost modelling for manufacturing of aerospace composites." Thesis, Cranfield University, 2011. http://dspace.lib.cranfield.ac.uk/handle/1826/6279.

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The application of composites has been increasing dramatically in aerospace structures recently, for example, composites have contributed over 50 percent of the structure mass of large transport airplanes Boeing 787 and Airbus 350XWB. However, the further usage has been restricted because of the high material and manufacturing costs. Hence, it is essential to utilize cost estimation tools for accurate cost estimation in the early design stages, and then efficient decisions and design optimizations could be made to reduce the cost of composite products. This research project aims to develop a c
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Ashry, Mahmoud Mohamed. "Control of multivariable aerospace and industrial systems." Thesis, University of Manchester, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.504785.

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This thesis presents theoretical and practical issues of local optimal control, which is one of the advanced control methods. It can be counted as an optimal modelbased multivariable control technique. The main contributions of this work can be summarized as follows. • A comparative robustness study of local optimal controller with other conventional controllers is performed for gas turbine engine as a multivariable system. • As the original local optimal control is incapable to deal with non-minimum phase systems, a modified local optimal control is proposed to deal with non-minimum phase sys
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Jaffery, Mujtaba Hussain. "Precision landing and testing of aerospace vehicles." Thesis, University of Surrey, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.551147.

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Planetary precision landing in non-cooperative sites has been a major challenge. An indoor novel planetary precision landing facility known as Surrey Precision Landing Facility (SPLF) has been developed to bridge the gap between software simulations and outdoor expensive UA V based planetary precision landing testbeds. The 3D motion capture system provides real-time accurate navigation data by removing the uncertainty in the position, and thus allows the flexibility to test the planetary terminal descent based Guidance and Control algorithms on quadrotors safely, rapidly, repeatedly with very
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48

Tuppen, S. J. "Resistance bonding of titanium based aerospace alloys." Thesis, Swansea University, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.639270.

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The current research was commissioned to assess the feasibility of fabricating bonds between a range of commercially available titanium based aerospace alloys, using a low-cost direct resistance heating technique. A novel methodology has been devised and implemented which utilises a Gleeble facility to produce controlled resistance bonds. The optimisation of bonding parameters required to produce high quality joints is discussed i.e. the effects of surface treatment, pressure, time, temperature and environment. Optimised bond conditions have been defined for joining Ti 6/4 to itself and TNB (g
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49

Wechsler, Andrew Philip. "Improving fault tolerant drives for aerospace applications." Thesis, University of Newcastle Upon Tyne, 2013. http://hdl.handle.net/10443/1841.

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The aerospace industry is moving towards the more electric aeroplane where traditional hydraulic systems are being replaced with electrical systems. Electrical technology offers some strong advantages compared to hydraulic technology including; cost, efficiency, power on demand and relative ease of maintenance. As with most new technologies, a major disadvantage is its limited reliability history. A lot of research in the aerospace field therefore focuses on improving fault tolerant electrical systems. Work done in this thesis builds on an existing fault tolerant drive, developed by Newcastle
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50

Kudesia, Sean Swarup. "Precision Nd:YAG laser drilling of aerospace materials." Thesis, Heriot-Watt University, 2003. http://hdl.handle.net/10399/387.

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