Essays about: "aircraft projects"

Showing result 1 - 5 of 16 essays containing the words aircraft projects.

  1. 1. 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

  3. 2. Contract Models for Increased Total Value Creation in Combat Aircraft Programs : A Case Study of Saab AB Aeronautics and FMV

    University essay from Linköpings universitet/Institutionen för ekonomisk och industriell utveckling

    Author : Daniel Ingeson; Jonas Englund; [2023]
    Keywords : contract models; complex projects; defence projects; combat aircraft programs; defence industry; value creation; co-creation of value;

    Abstract : Combat aircraft programs between a manufacturer and government are critical for both parties, asit involves significant costs, lengthy development times, and high risks. If successful, suchprograms can result in improved defense capabilities for the government and financial gains forthe manufacturer. READ MORE

  4. 3. Forced response numerical investigation of a transonic compressor rotor

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Mariana Pires Gonçalves Toco Dias; [2023]
    Keywords : Compressor; rotor; blisk; aeroelasticity; aerodynamic damping; CFD; transient; forced response;

    Abstract : The present thesis discusses the forced response of a rotor’s bladed-disk when excited by the periodic force produced by a wake generator, or Inlet Guide Vane (IGV),with 8 equally-spaced blades. These components are part of an axial transonic compressor rig, moreover the Transonic Compressor Darmstadt 1 (TCD1), located at the Technical University of Darmstadt. READ MORE

  5. 4. Thermal Design of High-Altitude Atmospheric Imaging UAV

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Baran Hamad; [2022]
    Keywords : ;

    Abstract : At higher altitudes is where we on occasion observe some of the most interesting atmospheric events in the sky. Examples of such are Aurora borealis, lightning sprites, jets and noctilucent clouds. In studying these processes one can learn much about them and our atmosphere in general but studying them is not always easy. READ MORE

  6. 5. A Fractional Step Zonal Model and Unstructured Mesh Generation Frame-work for Simulating Cabin Flows

    University essay from Linköpings universitet/Mekanisk värmeteori och strömningslära

    Author : Sergi Tarroc Gil; [2021]
    Keywords : Zonal Model; Thermal Comfort; Fluid Simulation; Aircraft Cabin Design; NURBS; Morphing; Radial Basis Functions; Meshing; Co-located Mesh; Unstructured Mesh; Mesh Quality; Mesh Smoothing; Enlarged Orientation Theorem; Fractional Step Method; Boussinesq; Adam Bashforth; Helmholtz-Hodge Theorem; Rhie and Chow; Difference Schemes; Gradient Evaluation; Differential Heated Cavity; Driven Cavity; Draught Rate;

    Abstract : The simulation of physical systems in the early stages of conceptual designs has shown to be a key factor for adequate decision making and avoiding big and expensive issues downstream in engineering projects. In the case of aircraft cabin design, taking into account the thermal comfort of the passengers as well as the proper air circulation and renovation can make this difference. READ MORE