Search for dissertations about: "aircraft dissertation"
Showing result 1 - 5 of 26 swedish dissertations containing the words aircraft dissertation.
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1. Improved remaining useful life estimations for on-condition parts in aircraft engines
Abstract : This thesis focuses on obtaining better estimates of remaining life for on-condition (OC) parts in aircraft engines. Aircraft engine components are commonly classified into three categories, life-limited parts (LLP), OC-parts and consumables. Engine maintenance typi-cally accounts for 10% to 20% of aircraft-related operating cost. READ MORE
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2. On Aircraft Development : managing complex systems with long life cycles
Abstract : Time plays an important role for the development of aircraft. The aircraft has a long life cycle and is composed of many systems with life cycles that sometimes differ with an order of magnitude in relation to the overall system. READ MORE
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3. Conformal anomaly detection : Detecting abnormal trajectories in surveillance applications
Abstract : Human operators of modern surveillance systems are confronted with an increasing amount of trajectory data from moving objects, such as people, vehicles, vessels, and aircraft. A large majority of these trajectories reflect routine traffic and are uninteresting. READ MORE
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4. Active Control of Propeller-Induced Noise in Aircraft : Algorithms & Methods
Abstract : In the last decade acoustic noise has become more and more regarded as a problem. In cars, boats, trains and aircraft, low-frequency noise reduces comfort. Lightweight materials and more powerful engines are used in high-speed vehicles, resulting in a general increase in interior noise levels. READ MORE
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5. Cabin Air Quality in Commercial Aircraft : Exposure, Symptoms and Signs
Abstract : The objective of the dissertation was to study the cabin environment, and identify personal and environmental risk factors, associated with symptoms, and perception of cabin air quality. Another objective was to study if ban of smoking, and increased relative air humidity on intercontinental flights, could have a beneficial health effect. READ MORE