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 6 of 6 for “"Landing Approach"”.
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Multi-Method Approach to Understand Pilot Performance in a Sociotechnical Aviation System
… the functional system of pilots performing a landing approach (both instrument and visual) with a Cessna 172 to the Roanoke Regional Airport (ROA) was described and analyzed. In the field study, data collection was guided by an integrative method based on macroergonomics (ME) and distributed …
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Constrained trajectory optimization of a soft lunar landing from a parking orbit
A trajectory optimization study for a soft landing on the Moon, which analyzed the effects of adding operationally based constraints on the behavior of the minimum fuel trajectory, has been completed. Metrics of trajectory evaluation included fuel expenditure, terminal attitude, thrust histories, …
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Accurate Target Geolocation and Vision-Based Landing with Application to Search and Engage Missions for Miniature Air Vehicles
… on delivering an attached payload via accurate landing at the target site. A vision-based landing approach is presented which is robust to both wind and moving targets. Simulation results are presented which demonstrate the effectiveness of the control.
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Acoustic Scattering in Sheared Flow
… to the sound heard from an aircraft during landing approach. Over the past few decades certification requirements have gradually tightened, reaching the point where the required noise reductions cannot be achieved through reducing engine noise alone. There are, similarly, restrictions on the …
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Performance, Stability and Control of Electric Short Takeoff and Landing Aircraft
… a new class of electric super-short takeoff and landing (eSTOL) aircraft, which are fixed wing aircraft designed for sufficiently short runways to make them competitive with vertical flight aircraft. The objectives of this thesis is to examine where in the design space of potential aircraft the …
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Numerical investigation of slat noise attenuation using acoustic liners
… to the overall airframe noise during the landing approach of a commercial aircraft. In this work the concept of attenuating slat noise using absorptive acoustic liners in the slat/main element gap is explored using a time domain computational aeroacoustic (CAA) technique. The aims of the …