Sökning: "LiTH"

Visar resultat 16 - 20 av 22 uppsatser innehållade ordet LiTH.

  1. 16. Investigation of rotor downwash effects using CFD

    Uppsats för yrkesexamina på avancerad nivå, Institutionen för systemteknik

    Författare :Helena Johansson; [2009]
    Nyckelord :Helicopter; Momentum Theory; Blade Element Theory; CFD; Rotor-Fuselage Interaction; Simulation; LQ controller;

    Sammanfattning : This paper is the result of a master thesis project on helicopter rotor downwash effects using computational fluid dynamics (CFD). The work was performed at the department of Aerodynamics and Flight Mechanics at Saab AB, Linköping in 2008. It completes the author’s studies for a M. LÄS MER

  3. 17. Investigation of a non-uniform helicopter rotor downwash model

    Uppsats för yrkesexamina på avancerad nivå, Institutionen för systemteknik

    Författare :Berenike Hanson; [2008]
    Nyckelord :helicopter; inflow; simulation; LQ-controller;

    Sammanfattning : This master thesis was carried out at the Department of Aerodynamics and Flight Mechanics at Saab Aerosystems, Linköping, Sweden. It makes up the author’s final work prior to graduation in the field Applied Physics and Electrical Engineering at the Department of Electrical Engineering at The Linköping Institute of Technology (LiTH), Linköping, Sweden. LÄS MER

  4. 18. Implementation of a Pump Control System for a Wheel Loader Application

    Master-uppsats, Institutionen för ekonomisk och industriell utveckling

    Författare :Daniel Gunnarsson; Emanuel Strid; [2007]
    Nyckelord :Pump control; Wheel loader; differential mode; CompactRIO; energy recuperation; valvistor;

    Sammanfattning : A lot of today’s new developments strive for energy efficiency. This includes the hydraulic side of industry. LÄS MER

  5. 19. Solving a Dead-lock Problem of NFO Sinus

    Magister-uppsats, Institutionen för systemteknik

    Författare :Henrik Engdahl; [2007]
    Nyckelord :sensorless motor control; asynchronous AC motor; field orientation;

    Sammanfattning : This thesis presents, analyzes and suggests solutions to the dead-lock problem of the sensorless variable speed drive NFO Sinus. Friction, measurement, parameter estimation and quantization effects are believed possible origins of this problem and is hence studied. LÄS MER

  7. 20. New Interface for Rapid Feedback Control on ABB-Robots

    Uppsats för yrkesexamina på grundnivå, Institutionen för konstruktions- och produktionsteknik

    Författare :Rasmus Lundqvist; Tobias Söreling; [2005]
    Nyckelord :Technology; Robot; Robot control; IRB4400; Feedback controller; Realtime; Sensor; Force feedback; TEKNIKVETENSKAP;

    Sammanfattning : Automation in manufacturing has come far by using industrial robots. However, industrial robots require tremendous efforts in static calibration due to their lack of senses. LÄS MER