Essays about: "aircraft power"

Showing result 1 - 5 of 63 essays containing the words aircraft power.

1. 1. Conceptual design of the next generation gas turbines : Modelling of a hybrid electric mixed turbofan for a trainer aircraft

   University essay from Mälardalens universitet/Akademin för ekonomi, samhälle och teknik

   Author : Sophia Fisher; Michael Åkerström; [2023]
   Keywords : Hybrid propulsion; mixed turbofan; parallel configuration; performance;

   Abstract : To mitigate climate change, all sectors must contribute their part. Electric propulsion system is a promising approach to reduce emissions from the aviation industry. A major challenge is however the low energy density in today’s battery technology. READ MORE

3. 2. mmWave Coverage Extension Using Reconfigurable Intelligent Surfaces in Indoor Dense Spaces

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Zhenyu Li; [2023]
   Keywords : mmWave Communication; Reconfigurable Intelligent Surface; Ray Tracing; Indoor Dense Spaces;

   Abstract : Millimeter-wave (mmWave) is widely investigated for indoor communication scenarios thanks to the available rich spectrum. However, the shortened antenna size and the high frequency make mmWave extra sensitive to blockages. READ MORE

4. 3. Evaluation of electric actuation for fighter aircraft

   University essay from Linköpings universitet/Fluida och mekatroniska system

   Author : Dennis Moliner Pettersson; Anton Nygårds; [2023]
   Keywords : EMA; actuator; actuation; MEA; aircraft; PMSM; SHA;

   Abstract : The tendency of recent years towards electrification of aircraft components and subsys-tems has opened the door for a wider usability of electro-mechanical actuators (EMAs) inthat context. EMAs are already in use in aircraft industries but mainly in civil aviation forsecondary control systems and non-critical applications. READ MORE

5. 4. Charging Infrastructure for Battery Electric Aircraft : A Simulation Study

   University essay from Uppsala universitet/Elektricitetslära

   Author : Algot Laurell; [2023]
   Keywords : Battery Electric Aircraft; Charging Infrastructure; Electric Aircraft;

   Abstract : Several models of battery electric aircraft are currently under development and are expected to be commercialized in the coming years. These electric aircraft are expected to require a significant amount of electrical power within a short period of time. READ MORE

6. 5. Arbitrary motion Synthetic Aperture Radar

   University essay from Lunds universitet/Matematisk statistik

   Author : Filip Alberius; Erik Rolander; [2023]
   Keywords : RADAR; SAR; Synthetic Aperture Radar; Pulsed Coherent Radar; PCR; VR; Virtual Reality; IMU; Inertial Measurment Unit; VAA; Virtual Antenna Array; Obstacle detection; Signal Processing; Matched Filter Method.; Technology and Engineering;

   Abstract : Syftet med denna avhandling är att utveckla en ny metod för att producera bilder med syntetisk aperturradar (SAR), med utgångspunkt i scenarier med arbiträr rörelse vad gäller radarsensorn. SAR är en väletablerad metod för att skapa 2- eller 3-dimensionella radarbilder, som traditionellt sett antar att radar-sensorns rörelse är linjär och förutsägbar. READ MORE