Sökning: "turbofan"
Visar resultat 21 - 25 av 32 avhandlingar innehållade ordet turbofan.
21. Estimation of Thrust and Health Parameters for Jet Engines
Sammanfattning : An advanced turbofan engine control system would benefit from an accurate thrust and engine performance estimate. Unfortunately, there is to date no reliable in-flight thrust measurement sensors available. LÄS MER
22. Aerodynamic design framework for low-pressure compression systems
Sammanfattning : Aircraft engine manufacturers strive to improve current state of the art designs through continuous development efforts. By improving existing designs and exploring new alternatives, the goal is to reduce the fuel consumption - a topic of high relevance due to the remarkable growth rate of air traffc. LÄS MER
23. Uncertainty and Robustness in Aerospace Structures
Sammanfattning : Engineering is not an exact science. In fact, all engineering activity contain some degree of assumption, simplification, idealization, and abstraction. When engineered creations meet reality, every manufactured product behaves differently. This variation can be detrimental to product quality and functionality. LÄS MER
24. Conceptual Design of Propulsion Systems for Boundary Layer Ingestion
Sammanfattning : To reduce the climate impact of aviation new aircraft and engine concepts as well as improved design methods are needed. In this thesis, two fronts are explored. The first concerns improved methods for the conceptual design of the engine. LÄS MER
25. Wisdom of the Crowd for Fault Detection and Prognosis
Sammanfattning : Monitoring and maintaining the equipment to ensure its reliability and availability is vital to industrial operations. With the rapid development and growth of interconnected devices, the Internet of Things promotes digitization of industrial assets, to be sensed and controlled across existing networks, enabling access to a vast amount of sensor data that can be used for condition monitoring. LÄS MER