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Showing result 1 - 5 of 11 essays matching the above criteria.

  1. 1. Preliminary Design of a 30 kN Methane-Oxygen-powered Electric-Pump-fed Liquid Rocket Propulsion System

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Vikramjeet Das; [2023]
    Keywords : rocket engine; liquid rocket; methalox; electropump; LRPS; LPRE; liquid methane; electric pump feed system;

    Abstract : The design of a liquid rocket propulsion system, unlike that of a standalone system, is intertwined with the overall development of a number of associated systems and is influenced by a multitude of conditions and considerations: from the requirements needed to accomplish the mission to the rationalizations involved behind the development of each rocket system and/or component. In my thesis, the preliminary design of a “new generation” 30 kN rocket engine driven by an electric pump feed system and running on liquid methane and liquid oxygen is performed. READ MORE

  3. 2. The connection between the bow shock at Mercury and the interplanetary magnetic field

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

    Author : Erik Sellberg; [2023]
    Keywords : Mercury bow shock; Bow shock - interplanetary magnetic field interaction; MESSENGER; Merkurius bogchock; Växelverkan bogchock interplanetära magnetfältet; MESSENGER;

    Abstract : As the solar wind reaches Mercury it interacts with the planet’s magnetic field slowing down, forming a bow shock in front of the planet and diverting the flow around it. Along with the solar wind comes the interplanetary magnetic field, an extension of the sun’s magnetic field. READ MORE

  4. 3. Distance and orientation-based formation control of UAVs and coordination with UGVs

    University essay from Lunds universitet/Institutionen för reglerteknik

    Author : Stevedan Ogochukwu Omodolor; [2022]
    Keywords : Technology and Engineering;

    Abstract : Nowadays, research in autonomous drones has increased thanks to the advancement of drone technology. Nevertheless, there are still limitations when performing specific missions due to flight duration, computational load and mission complexity. This thesis investigates ways to solve this problem by taking advantage of multiple UAVs and UGVs. READ MORE

  5. 4. Cluster Initiative Success Management – a single case study on Telematics Valley

    University essay from Göteborgs universitet/Graduate School

    Author : Emma Åström; Saima Shahid; [2021-07-06]
    Keywords : Telematics; Telematics Valley; Clusters; Cluster Initiative; Regional Innovation Systems RIS ;

    Abstract : Regional Innovation System (RIS) and clusters have long been argued for having a positive impact on regional growth. Also, the eminence of cluster initiatives and how in turn they support regional growth and development are becoming important questions for scholars and practitioners as well. READ MORE

  6. 5. Development and testing of algorithms for optimal thruster command distribution during MTG orbital manoeuvres

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Lars Sprengelmeyer; [2020]
    Keywords : linear programming algorithms; linear optimization; thruster command distribution; thruster control; Simplex; Karmarkar s method; minimum power controller; minimum flow rate controller; minimum control authority;

    Abstract : An accurate satellite attitude and orbit control is a key factor for a successful mission. It guarantees for example sun acquisition on solar panels, fine pointing for optimal telescope usage or satellite lifting to reach higher orbits, when required. READ MORE