Relevant bibliographies by topics / Aeronautic engineering / Dissertations / Theses
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Dissertations / Theses on the topic 'Aeronautic engineering'

Author: Grafiati
Published: 30 May 2022
Last updated: 31 July 2025

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1

Philippe, Alexis. "Optimisation of an aeronautic production line through the managementof tools and the shortage of items." Thesis, KTH, Flygdynamik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-261701.

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This thesis work is part of a process to ensure the production ramp-up of the A320neo aircraft pylons at Airbus Saint-Eloi factory (Toulouse). The aim of the project was to optimise the production management in order to sustain the transition to a serial production of the assembly lines. The objective of the thesis work was to develop a model to prevent the downtime of the production lines caused by the shortage of the assembly lines or the unavailability of tools on workstations.Firstly, the work investigates the existing models in order to understand the causes of stocks variability. Perform
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2

Ivliev. "SPACE X’S ROCKET CONCEPTS – STEP FORWARD IN AERONAUTICAL ENGINEERING." Thesis, Київ 2018, 2018. http://er.nau.edu.ua/handle/NAU/33718.

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3

Alroqi, Abdurrhman Atig. "Investigation of the heat and wear of aircraft landing gear tyres." Thesis, University of Sussex, 2017. http://sro.sussex.ac.uk/id/eprint/68761/.

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In aircraft, the main landing gear wheels skid on the runway at the moment of touchdown because of high slip. A slipping tyre generates enough heat to melt its rubber. Melted rubber is easily eroded by the friction force between the tyre and runway; and part of eroded rubber stays on the runway, and other is burnt off as smoke. Since the early days of airplane use, a number of ideas have been patented to improve tyre safety and decrease the substantial wear and smoke during every landing by spinning the gear wheels before touchdown. In this thesis, there are three parts of research work. First
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4

Alkandri, Ahmad. "Design and performance assessment of correlation filters for the detection of objects in high clutter thermal imagery." Thesis, University of Sussex, 2014. http://sro.sussex.ac.uk/id/eprint/49954/.

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The research reported in this thesis has examined means of enhancing the performance of the Optimal Trade-off Maximum Average Correlation Height (OT-MACH) filter for target detection in Forward Looking Infra-Red (FLIR) imagery acquired from a helicopter and border security FLIR camera in northern Kuwait. The data acquired with these FLIR sensors allows real-world evaluation of the comparative performance of the various filters that have been developed in the thesis. The results obtained have been quantified using well known performance measures such as Peak to Side-lobe Ratio (PSR) and Total D
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5

Bramer, Elinor C. "Development of a particle in cell code for the simulation of dual stage ion thrusters." Thesis, University of Sussex, 2014. http://sro.sussex.ac.uk/id/eprint/48913/.

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This thesis focuses on the design, development and testing of a two dimensional particle in cell (PIC) code (PICSIE) written in Matlab. The code is applied to the specific problem of modelling the performance of dual stage ion thrusters. The code simulates one full aperture within dual stage ion thruster systems, focusing on the flow of ions through the aperture. Only the ions have been included in the simulation in order to minimize running time. The results produced by the simulation code are compared with results obtained from the vacuum chamber testing of the DS4G prototype, along with res
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6

Langari, Mostafa. "Large eddy simulation of separated boundary layer transition under free-stream turbulence." Thesis, University of Sussex, 2014. http://sro.sussex.ac.uk/id/eprint/48940/.

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Physics of laminar-to-turbulent transition in a separated-reattached flow subjected to two free-stream turbulence levels have been explored using Large-Eddy Simulation (LES). Separation of the laminar boundary layer occurs at a curvature change over a flat plate with a semi-circular leading edge. A numerical trip has been used to generate the targeted free-stream turbulence levels. A dynamic Sub-grid-scale (SGS) model has been employed and excellent agreement has been achieved between the LES results and the experimental data. Detailed investigation of the LES data has been carried out to expl
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7

Біла, Світлана Олексіївна, and Svitlana Bila. "Strategic priorities of aviation services market’s competitiveness growth in Ukraine within globalization." Thesis, National Aviation University, 2016. http://er.nau.edu.ua/handle/NAU/38534.

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The basic strategic priorities of aviation services market’s competiveness growth in Ukraine within globalization terms are defined in the article. The special attention is given to the prospects of improving, security and achieving correspondence of national aviation services market’s standards with international ones under the terms of Ukraine’s joining Common aviation space with EU and rules of ‘common aviation area’. The main priorities of aviation branch in Ukraine are defined concerning its competitiveness growth.
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8

Stringfellow, Margaret Virgina. "Safety-driven system engineering process." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/49685.

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Thesis (S. M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2008.<br>MIT Barker Library copy: leaves 82 to 106 bound upside-down.<br>Includes bibliographical references (leaves 56-59).<br>As the demand for high-performing complex systems has increased, the ability of engineers to meet that demand has not kept pace. The creators of the traditional system engineering processes did not anticipate modern complex systems, and the application of traditional processes to complex systems such as spacecraft has repeatedly led to disastrous results. Too often, system sa
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9

Guiho, Audren. "Design, development and use of a mechanism simulator for aeronautical engineering." Thesis, KTH, Flygdynamik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-244830.

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This paper deals with the strategy for developing a very specific mechanism simulator. This mechanism is currently designed by Safran Group. A previous version of the same mechanism does exist but the scale is not on a like-for-like basis. Therefore, physical phenomena involved in this mechanism and their magnitude are not comparable to the previous version of the mechanism and this is why a new simulator has been developed (specified, coded and validated) from scratch. The paper addresses the strategy adopted for modelling a mechanism laying on a wide set of parameters as well as its use.<br>
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10

Coffee, Thomas Merritt. "A modular programming language for engineering design." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/43080.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2008.<br>Includes bibliographical references (p. 137-142).<br>We introduce a new universal model of computation called MDPL that generalizes other functional models like the lambda calculus and combinatory logic. This model leads naturally to a new type of programming language that combines the key strengths of imperative and functional languages for development and analysis of programs. These strengths have particular relevance for rapid analysis of large-scale engineering design problems. MDPL uses a
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11

Weiss, Kathryn Anne 1979. "Component-based systems engineering for autonomous spacecraft." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/82801.

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12

Schondorf, Steven Yellin. "Systems engineering for a Mars micro-rover." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/42537.

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13

Molyneux, Harry F. "An Aeronautical Engineerings user's manual to the HP-28S handheld calculator." Thesis, Monterey, California. Naval Postgraduate School, 1991. http://hdl.handle.net/10945/26347.

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14

Owen, J. "Data management in engineering design." Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/385838/.

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Engineering design involves the production of large volumes of data. These data are a sophisticated mix of high performance computational and experimental results, and must be managed, shared and distributed across worldwide networks. Given limited storage and networking bandwidth, but rapidly growing rates of data production, effective data management is becoming increasingly critical. Within the context of Airbus, a leading aerospace engineering company, this thesis bridges the gap between academia and industry in the management of engineering data. It explores the high performance computing
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15

France, Megan Elizabeth. "Engineering for humans : a new extension to STPA." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/112357.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2017.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 109-110).<br>From space shuttles to airplanes to everyday automobiles, today's systems are increasingly complex-and increasingly connected. In order to ensure that increased complexity does not simply bring an increased number of accidents, t
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16

Meyen, Forrest Edward. "Engineering a robotic exoskeleton for space suit simulation." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/85810.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 177-181).<br>Novel methods for assessing space suit designs and human performance capabilities are needed as NASA prepares for manned missions beyond low Earth orbit. Current human performance tests and training are conducted in space suits that are heavy and expensive, characteristics that constrain possible testing environments and reduce suit availability to researchers. Space suit mock-ups used in plane
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17

Ouimet, Martin 1975. "A diagnostics architecture for component-based system engineering." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/17787.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2004.<br>Includes bibliographical references (leaves 58-60).<br>This work presents an approach to diagnosis to meet the challenging demands of modern engineering systems. The proposed approach is an architecture that is both hierarchical and hybrid. The hierarchical dimension of the proposed architecture serves to mitigate the complexity challenges of contemporary engineering systems. The hybrid facet of the architecture tackles the increasing heterogeneity of modern engineering systems. The architectu
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18

Beesemyer, Jay Clark Jr. "Empirically characterizing evolvability and changeability in engineering systems." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/76092.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2012.<br>"June 2012." Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 205-212).<br>The beginning phases of system development and conceptual design require careful consideration, as these decisions will have significant influence on system lifetime performance and are often made with incomplete system knowledge. Decision makers may improve their capacity to discriminate between system concepts and design choices by measuring a system's "ilities" such as changeability, e
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19

Öztürk, Berk. "Conceptual engineering design and optimization methodologies using geometric programming." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/115595.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2018.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 67-68).<br>Geometric programs (GPs) and other forms of convex optimization have recently experienced a resurgence due to the advent of polynomial-time solution algorithms and improvements in computing. Observing the need for fast and stable m
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20

Perez, Martinez Carla S. (Carla Sofia). "Engineering ionic liquid ion sources for ion beam applications." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/105605.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2016.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 177-186).<br>Ionic liquid ion sources (ILIS) are devices capable of producing positive and negative molecular ion beams through field evaporation from room-temperature molten salts. If sufficiently high hydraulic impedance from the liquid-supporting emitter is provided such that the ratio of flow rate Q to liquid's electrical conductivity K is sufficiently small, a pure ionic regime (PIR) can be achieved,
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21

Decker, Zachary Scott. "A systems-engineering assessment of multiple CubeSat build approaches." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/105560.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2016.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged student-submitted from PDF version of thesis.<br>Includes bibliographical references (pages 98-101).<br>This research conducts a broad systems-based analysis of CubeSat engineering, with a focus on testing, failures, and their relationship to program cost, in order to assess multiple build approaches with a goal of maintaining the a
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22

Robinson, Joseph B. (Joseph Brian). "An integrated evolutionary model approach to small satellite engineering." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/59565.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2010.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student submitted PDF version of thesis.<br>Includes bibliographical references (p. 183-185).<br>A deficiency exists in the use of detailed integrated modeling in the design, fabrication, and operations of small satellites (<180kg). This need led to the design of the Integrated Evolutionary Model (IEM) approach to small satellite e
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23

Schwarz, Benjamin Samuel. "Fractionated satellites : a systems engineering analysis." Thesis, University of Southampton, 2014. https://eprints.soton.ac.uk/370544/.

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The current method of operating space-based assets involves the design and launch of large, monolithic spacecraft. These spacecraft are not responsive to failures or changes in mission requirements, as both require the launch of a completely new spacecraft. The concept of fractionated spacecraft was introduced in 2006 by the US Defence Advanced Research Projects Agency (DARPA) as a way of designing and operating space systems which is more responsive than current methods. The fractionated concept involves the decomposition of the traditional monolithic satellite into a number of free-flying sp
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24

Karasi, Anand K. (Anand Kumar) 1975. "Cooperative parent child unmanned aerial vehicles : a systems engineering approach." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/50542.

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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1999.<br>Includes bibliographical references (p. 69-70).<br>The MIT/Draper Technology Development Partnership Project was initiated and sponsored by Charles Stark Draper Laboratory, Inc. (CSDL) to give students an opportunity to design, develop and validate a first-of-a-kind high technology system. This program addresses projects that meet one of the important national needs and the organizational requirements of CSDL. In addition, it aims to foster a sense of entrepreneurship in the students. This t
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25

Nolet, Simon 1975. "Development of a design environment for integrated concurrent engineering in academia." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/82212.

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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, June 2001.<br>Pages 225-226 blank.<br>Includes bibliographical references (p. 151-154).<br>by Simon Nolet.<br>M.Eng.
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26

Farnworth, Bruce J. 1960. "Architectural framework to support integrated concurrent engineering in an academic institution." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/9252.

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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2000.<br>Also available online at the MIT Theses Online homepage <http://thesis.mit.edu>.<br>Includes bibliographical references (p. 94-96).<br>This thesis focuses on developing a recommended architecture for the next generation of design centers for integrated concurrent engineering in an academic environment and identifying and implementing an enabling sub-system for the architecture. During the development of this architecture a systems engineering process was used to structure the efforts of the
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Clements, Emily Baker. "Probabilistic methods for systems engineering with application to nanosatellite laser communications." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/119286.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2018.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 109-121).<br>Risk-tolerant platforms such as nanosatellites may be able to accept moderate performance uncertainty if it enables the reduction of cost or improves manufacturability, in contrast to large-budget space missions. New uncertainty-based systems engineering approaches such as uncertainty-based multidisciplinary optimization require the use of integrated performance models with input distribution
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Ouimet, Martin 1975. "A formal framework for specification-based embedded real-time system engineering." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/45272.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2008.<br>Includes bibliographical references (v. 2, p. 517-545).<br>The increasing size and complexity of modern software-intensive systems present novel challenges when engineering high-integrity artifacts within aggressive budgetary constraints. Among these challenges, ensuring confidence in the engineered system, through validation and verification activities, represents the high cost item on many projects. The expensive nature of engineering high-integrity systems using traditional approaches can
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29

Karasu, Caglar. "Small-size Unmanned Model Helicopter Guidance And Control." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605595/index.pdf.

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The deployment of unmanned aerial vehicles (UAV) in military applications increased the research about them and the importance of them. The unmanned helicopters are the most agile and maneuverable vehicles among the unmanned aerial vehicles (UAV). The ability of hovering and low speed cruise makes them even more attractive. Such abilities supply more areas to deploy the usage of the unmanned helicopters like search &amp<br>rescue, mapping, surveillance. Autonomy is the key property for these vehicles. In order to provide autonomy to an unmanned vehicle, the guidance and the autopilot units are
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30

Schuman, Todd 1979. "Integration of system-level optimization with concurrent engineering using parametric subsystem modeling." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/17816.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2004.<br>Includes bibliographical references (p. 120-123).<br>The introduction of concurrent design practices to the aerospace industry has greatly increased the efficiency and productivity of engineers during design sessions. Teams that are well-versed in such practices such as JPL's Team X are able to thoroughly examine a trade space and develop a family of reliable point designs for a given mission in a matter of weeks compared to the months or years sometimes needed for traditional design. Simultan
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31

Newman, Dava Jean. "Human mental workload & performance in space : engineering development and policy aspects." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/41233.

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32

Lam, Remi Roger Alain Paul. "Scaling Bayesian optimization for engineering design : lookahead approaches and multifidelity dimension reduction." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/119289.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2018.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 105-111).<br>The objective functions and constraints that arise in engineering design problems are often non-convex, multi-modal and do not have closed-form expressions. Evaluation of these functions can be expensive, requiring a time-consuming computation (e.g., solving a set of partial differential equations) or a costly experiment (e.g., conducting wind-tunnel measurements). Accordingly, whether the ta
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33

Frogget, Jacob William. "Automatic Modulation Recognition for Aeronautical Telemetry." BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/3826.

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This these explores automatic modulation recognition as applied to PCM/FM, SOQPSK- TG and ARTM CPM. It found that the likelihood based approach is intractable. The statistical features of the amplitude, phase and frequency are ineffective at distinguishing these modulation types. A method based on the phase changes between symbols is developed and shows that as long as symbol timing is established, this method can effectively distinguish PCM/FM, SOQPSK-TG and ARTM CPM for signal-to-noise ratios above 30 dB. Another method, the Bianchi-Loubaton- Sirven technique, was able to distinguish PCM/FM
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Haque, Jamal. "An OFDM Based Aeronautical Communication System." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3143.

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Wireless connectivity is becoming an integral part of our society. A new paradigm for aeronautical data services is beginning to take shape. The advances in signal processing, rapid prototyping, an insatiable consumer demand for Internet services, increase in aircraft traffic, aircraft safety, etc., are driving the demand for high speed data services. Programs led by the National Aeronautics and Space Administration (NASA), the Federal Aviation Administration (FAA), EUROCONTROL and Networking the Sky for Civil Aeronautical Communications (NEWSKY) are all looking into aeronautical platforms as
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Melin, Tomas. "Multidisciplinary Design in Aeronautics, Enhanced by Simulation-Experiment Synergy." Doctoral thesis, Stockholm : Kungliga Tekniska högskolan, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3996.

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36

Dulac, Nicolas 1978. "A framework for dynamic safety and risk management modeling in complex engineering systems." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/42175.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, June 2007.<br>"February 2007."<br>Includes bibliographical references (p. 328-338).<br>Almost all traditional hazard analysis or risk assessment techniques, such as failure modes and effect analysis (FMEA), fault tree analysis (FTA), and probabilistic risk analysis (PRA) rely on a chain-of-event paradigm of accident causation. Event-based techniques have some limitations for the study of modem engineering systems. Specifically, they are not suited to handle complex software-intensive systems, complex
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Bairstow, Brian Kenichi. "Effectiveness of integration of system-level optimization in concurrent engineering for rocket design." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/35582.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2006.<br>Includes bibliographical references (p. 110-111).<br>Integrated concurrent engineering is a method for rapid conceptual design. Previous study has suggested that integration of system-level optimization techniques into integrated concurrent engineering can benefit the design process. In order to confirm and strengthen these results further study was carried out. A two-stage liquid rocket software model was created to serve as a complex multi-disciplinary design problem. Several design session
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Goh, Shaun Shiao Sing 1980. "Sustainment of commercial aircraft gas turbine engines : an organizational and cognitive engineering approach." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/82760.

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Monroe, Mark A. (Mark Alan). "A market and engineering study of a 3-kilowatt class gas turbine generator." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/42200.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2003.<br>Includes bibliographical references (p. 147-149).<br>Market and engineering studies were performed for the world's only commercially available 3 kW class gas turbine generator, the IHI Aerospace Dynajet. The objectives of the market study were to determine the competitive requirements for small generators in various U.S. applications, assess the unit's current suitability for these applications, and recommend ways to modify performance or marketing practices to make it more competitive. Engine
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Eyerman, Christopher Emil. "A systems engineering approach to disturbance minimization for spacecraft utilizing controlled structures technology." Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/42491.

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Bakir, Huseyin Murat. "Mathematical Model Development Of The Anti Torque System Of A Notar Helicopter." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/2/12610141/index.pdf.

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The anti-torque mechanism of a NOTAR helicopter is a complex system including vertical tail and pressurized tail boom which provides air ejection used for both circulation control around the boom and creating directed jet air at the end of the boom. This thesis targets the modeling of this mechanism and integrating it to a helicopter simulation model. Flight tests are performed on the MD 600N helicopter to verify the results. Finally, the simulation is compared with flight test data.
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Gezguc, Cagri. "Compressor Tandem Blade Aerothermodynamic Performance Evaluation Using Cfd." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614707/index.pdf.

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In this study, loss and loading characteristics of compressor tandem blades are evaluated. Whole study was focused on change of the total camber so called turning angle. Effects of camber change were investigated in terms of loss and loading characteristics. Methodology was increasing overall camber first by aligning angular positions of blades and second, if required, using more cambered airfoils. 2-dimensional cascade flow CFD analyses were performed to obtain loss-loading information of different tandem blade combinations. Acquired results were compared with the classical axial compressor
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Shougarian, Narek Rouben. "Towards concept generation and performance-complexity tradespace exploration of engineering systems using convex hulls." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/108924.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2017.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 239-249).<br>This thesis examines tradeoffs between performance and complexity in the context of future aircraft engine architectures and a reconfigurable mobile device. Traditionally aircraft/engine system architecture selection has been conducted via expert suggestion, evaluation and down-selection of alternatives. This work proposes a convex hull-based computational approach to generating architectures
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Bounova, Gergana Assenova 1980. "Graph-theoretical consideration in the design of complex engineering systems for robustness and scalability." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/28907.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2005.<br>Includes bibliographical references (p. 113-114).<br>(cont.) and (2) a forward approach which achieves optimality at the start and grows the system using an optimization technique. We systematically compare the two staging techniques in the context of telescope arrays and evaluate the hypothesis that the backward approach is superior for telescope arrays because it incorporates knowledge of the desired future end state of the system. The modelling framework introduced is applicable to various
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Gagakuma, Edem Coffie. "Multipath Channel Considerations in Aeronautical Telemetry." BYU ScholarsArchive, 2017. https://scholarsarchive.byu.edu/etd/6529.

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This thesis describes the use of scattering functions to characterize time-varying multipath radio channels. Channel Impulse responses were measured at Edwards Air Force Base (EAFB) and scattering functions generated from the impulse response data. From the scattering functions we compute the corresponding Doppler power spectrum and multipath intensity profile. These functions completely characterize the signal delay and the time varying nature of the channel in question and are used by systems engineers to design reliable communications links. We observe from our results that flight paths wit
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Asfour, Ammar. "Measuring engineering quality in airplane development." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/98975.

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Thesis: M.B.A., Massachusetts Institute of Technology, Sloan School of Management, 2015. In conjunction with the Leaders for Global Operations Program at MIT.<br>Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2015. In conjunction with the Leaders for Global Operations Program at MIT.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 52-53).<br>This project was motivated by the desire to apply quality metrics to the multiple stages of the airplane development process at Boeing Commercial Airplanes. This proje
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Fulcoly, Daniel O'Brien. "A normative approach to designing for evolvability : methods and metrics for considering evolvability in systems engineering." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/76165.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2012.<br>"June 2012." Page 124 blank. Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 121-123).<br>As engineering endeavors become larger, more complex, and more expensive, the advantages of evolvable design and redesign grow. Cost and complexity are not the only factors driving the need for evolvability; changes in requirements and context can also lead to the need for redesign. This research looks to characterize evolvability, propose design principles for evolvabilit
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Chodas, Mark A. "Improving the design process of the REgolith X-ray Imaging Spectrometer with model-based systems engineering." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/93796.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 85-87).<br>Traditional systems engineering processes have supported the development of many complex and successful space systems. However, some systems experience significant cost and schedule overruns. Systems engineering capabilities need to be improved to manage the expected increase in complexity of future systems. Model-based systems engineering (MBSE) is a new systems engineering paradigm where system
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Marangoz, Alp. "Evaluation Of A New Turbulence Model For Boundary Layer Flows With Pressure Gradient." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606496/index.pdf.

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In this thesis, a new turbulence model developed previously for channel and flat plate flows is evaluated for flat plate flows with pressure gradient. For this purpose a flow solver, which uses boundary layer equations as the governing equations and Von Karman momentum integral equation for the calculation of skin friction, is developed. It is shown that the error of the new turbulence model, in predicting the velocity profile, is less than 5 % for the flat plate flows without pressure gradient and less than 10 % for the flat plate flows with favorable pressure gradient. It is also shown that
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Ercin, Gulsum Hilal. "Flight Simulation And Control Of A Helicopter." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/3/12610194/index.pdf.

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In this thesis the development of a nonlinear simulation model of a utility helicopter and the design of its automatic flight control system is addressed. In the first part of this thesis, the nonlinear dynamic model for a full size helicopter is developed using the MATLAB/SIMULINK environment. The main rotor (composed of inflow and flapping dynamics parts), tail rotor, fuselage, vertical stabilizer, horizontal stabilizer of the helicopter are modeled in order to obtain the total forces and moments needed for the flight simulation of the helicopter. Total forces and moments are used in 6 degre
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