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 19 of 19 for “"airliner"”.
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What's next for the airliner? : historical analysis and future predictions of aircraft architecture and performance
… the inception of the first commercially viable airliner in the 1930s, the Douglas DC-3. In the 80 years since then, the number of annual air passengers in the US has increased from 6000 to over 800 million. In order to accommodate this demand growth, civil passenger aircraft architectures have …
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Investigation of the Impact of Turboprop Propulsion on Fuel Efficiency and Economic Feasibility
… a 130-passenger advanced turboprop commercial airliner with the purposes of economic feasibility and energy efficiency. A baseline vehicle and a derivative vehicle were researched and analyzed in detail. Based on the findings of this analysis, an advanced future airliner was designed. For the …
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The Dragon Takes Flight: China's Journey Toward Building Its C-919 Large Passenger Aircraft and Its Impact on the US and Boeing
… with the development of a large indigenous airliner, China after a failed attempt in the mid-1980s, since 2003 has decided once again to embark on a journey toward the development of a 190 seat commercial airliner. Nations are typically interested in the development of indigenous airliners …
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Radiation dose to the global flying population
Civil airliner passengers and crew are exposed to elevated levels of radiation relative to being at sea level. Previous studies have assessed the radiation dose received in particular cases or for cohort studies. Here we present the first estimate of the total radiation dose received by the …
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Integrated analysis procedure of aerospace composite structure
… longer lifecycle (25-30 years) of a commercial airliner and the tools and processes developed for the airplane of previous product development cycles, new technology often ends up being deployed less effectively because of the mismatch in the technical potential (what can be done) vs. design …
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Aerodynamic Properties of the Inboard Wing Concept
This investigation examines a new concept in airliner configurations from an experimental aerodynamics point of view. The concept proposes mounting the fuselages at the tips of a low aspect ratio wing. The motivation for this configuration is to provide an increase in the number of passengers …
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Study of 3D-Printed Polymers for Aerospace Structural Applications
… that of a service access door for a Boeing airliner. The focus of the work was initially to identify a candidate set of materials and printing processes. After this, the focus was to characterize the behavior of the set of materials through testing. This material characterization was used to …
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Aviation risk management
… by introducing more advanced and higher capacity airliners. Therefore, aviation risks and their financial impact exhibit a number of distinguishing characteristics that raise problems for traditional risk management and insurance technique in dealing with such risks. The study reviews, analyses …
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The Extent of Distraction of Cell Phone Conversations for Passengers in Simulated Flight
… are popular methods to inform commercial airliner passengers of their situation and aircraft’s status. If a passenger’s attention is distracted from the announcements by the phone call, it would inhibit the passenger from being aware of important information. Nevertheless, little research …
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Multidisciplinary Design Optimization and Industry Review of a 2010 Strut-Braced Wing Transonic Transport
Recent transonic airliner designs have generally converged upon a common cantilever low-wing configuration. It is unlikely that further large strides in performance are possible without a significant departure from the present design paradigm. One such alternative configuration is the strut-braced …
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Toward automated design of Combined Cycle Propulsion
… employ a vehicle designed within the re-usable, airliner-like 'space plane' paradigm. Key to the practicality of such vehicles is the further development of Combined Cycle Propulsion technology. In this thesis, a new engineering tool called the HYbrid PRopulsion Optimizer (HyPro) is presented, …
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Aerodynamic Analysis of Variable Geometry Raked Wingtips for Mid-Range Transonic Transport Aircraft
… shown that a wingtip treatment on a commercial airliner will reduce drag and increase fuel efficiency and the most common types of treatment are blended winglets and raked wingtips. With Boeing currently investigating novel designs for its next generation of airliners, a variable geometry raked …
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The role of intervention in strategic change
… and cost. Examples are the Concorde supersonic airliner, the Channel Tunnel, the Humber Bridge. This research started with the premise that the future is not predictable, and has concentrated on addressing the life-cycle dynamics of projects involved in the development of complex systems. It has …
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Permanent press, no wrinkles : reinforced double diaphragm forming of advanced thermoset composites
… parts, called rib chords, in the Boeing 777 airliner vertical fin and horizontal stabilizer. These parts have considerable double curvature and so present opportunities for large improvements in production rate and ergonomic suitability. Development of a reinforced version of double diaphragm …
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Advances in structural dynamics, aeroelasticity and material science
… structural element to a high capacity transport airliner capable of carrying more than 500 passengers and a large space platform with a plan dimension of more than 30 metres. To provide these solutions, he resorted to an elegant, accurate, but efficient method, called the dynamic stiffness …
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Aerodynamics of a swept wing with leading-edge ice at low Reynolds number
… to represent a typical wide body commercial airliner. The modified geometry of the model used in this study included a ΛLE = 35º, AR = 8.3 and λ=0.296. The experimental techniques used were force balance measurements, surface pressure measurements, surface oil flow visualization and 5-hole …
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Simulation of deformation and fracture in very large shell structures
… of explosive decompression in a commercial airliner is shown as evidence that the proposed framework can successfully perform shell fracture simulations of unprecedented size.
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Effectiveness of adaptive flight planning in the occurrence of total loss of thrust due to bird strike
… and successful recovery of at least one engine. Airliner type-rating programs assume that total loss of thrust culminates in at least one engine recovery. If an engine restart cannot be achieved in a real-life emergency, airline pilots are left with virtually no guidance on how to manage the …
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SIlver Tower - A New Paradigm for Tall Building Design
The events of September 11, 2001, seemed to many to presage the end of the skyscraper as an urban form. Some 15 years later, the skyscraper is more prevalent than ever before, owing to its unique advantages over other building forms in an urban, environmental, and sociological context. Skyscrapers …