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.
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Showing 1 to 20 of 2839 for “"Aircraft"”.
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Aircraft agility
A definition of an aircraft agility vector is given as the time rate-of-change of the applied forces acting on an aircraft and agility is characterized as being representable by instantaneous and integral time-scales. A unified framework for evaluating instantaneous and integral agility is …
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Aircraft collision models
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1982.
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Parameter Estimation of Fundamental Technical Aircraft Information Applied to Aircraft Performance
<p>Inverse problems can be applied to aircraft in many areas. One of the disciplines within the aerospace industry with the most openly published data is in the area of aircraft performance. Many aircraft manufacturers publish performance claims, flight manuals and Standard Aircraft Characteristics …
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Towards a Wireless Aircraft
The replacement of many of of an aircraft’s wired interconnects with wireless data connections would offer a number of benefits. These include: weight reduction, easier maintenance, faster aircraft design, simpler retrofitting and greater redundancy. However, attempting to do this produces a lot of …
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An aircraft ranging device
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering, 1926.
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The Comparison of Composite Aircraft Field Repair Method (CAFRM) with Traditional Aircraft Repair Technologies
… repair method were tested against the Composite Aircraft Field Repair Method (CAFRM) proposed by the researcher. Specimens were tested with microscopy, acid digestion, short beam shear, and mode I fracture tests. The researcher was able to determine the specimen's void content, fiber volume …
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Development of an Aircraft Landing Database and Models to Estimate Aircraft Runway Occupancy Times
… represents the methodologies used to develop an aircraft landing database and predictive models for estimating arrival flight runway occupancy times. In the second chapter, all the algorithms developed for analyzing the airport surface radar data are explained, and detailed statistical …
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Inflight Characterization of Aircraft Icing
… as an additional layer of safety against aircraft icing accidents, by presenting and validating a conceptual design for the icing characterization function of the IMS. This icing characterization function seeks to provide a near real-time estimate of the degradation of the aircraft flight …
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Cognitive requirements for aircraft navigation
This thesis presents a cognitive analysis of a pilot's navigation task, and using this foundation, describes an experiment comparing a new map display, employing the principal of visual momentum, to the two traditional track-up and north-up approaches. The visual momentum display is based on the …
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Automatic tracking control of aircraft
Thesis (Sc.D.) Massachusetts Institute of Technology. Dept. of Aeronautical Engineering, 1947.
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Analysis of Japanese aircraft engine
Thesis (B.S.) Massachusetts Institute of Technology. Dept. of Mechanical Engineering, 1947.
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Aircraft interior acoustic noise control
… which materials are best suited for internal aircraft noise reduction. An impedance tube with dimensions of a scaled aircraft was constructed and evaluated, and eleven materials were tested and compared based on their noise reduction properties, weight, and thickness. Polyvinylidene Fluoride …
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Autonomous Drone Assisted Aircraft Inspections
… mechanics is of the utmost importance for any aircraft manufacturer or operator. Visual inspections of the exterior of aircraft are critical to their safe operation, as defects such as corrosion, dents, lightning strikes, or missing parts can compromise the structural integrity of the whole …
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Improving aircraft departure time predictability
In this thesis, a forecasting model is described that improves departure predictions over those of Collaborative Decision Making (CDM), reducing error by up to 30% for a given day. This model propagates delay from incoming flights to outgoing flights by using minimum turn times calculated from …
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Signomial programming for aircraft design
Due to the coupled nature of aircraft system design, it is important to consider all major subsystems when optimizing a configuration. This, however, is easier said than done, particularly because each individual subsystem model can be arbitrarily complex. By restricting an optimization problem to …
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Aircraft remanufacturing process improvement analysis
Thesis (S.M.)--Massachusetts Institute of Technology, System Design & Management Program, February 2000.
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Fighter Aircraft Synthesis/Design Optimization
… 19 mission segments of a supersonic fighter aircraft mission and the results of the study show that for very large structural weight penalties and fuel penalties applied to account for the morphing technology, the morphing-wing aircraft can significantly outperform a fixed-wing AAF …
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A study of aircraft agility
… problem for an air-superiority fighter aircraft. The first model considers the body axes angular rates as control variables and is accordingly referred to as the body rate model. The second model is a rigid body model featuring rotational dynamics governed by the primary control surface …
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