Sökning: "actuator"

Visar resultat 1 - 5 av 267 uppsatser innehållade ordet actuator.

  1. 1. Preliminary Design and Conceptual Analysis of an Electrically Actuated Pintle Injector

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Simone Guietti; [2024]
    Nyckelord :Pintle injector; space propulsion; space engineering;

    Sammanfattning : ”The Eagle has landed”. With this words, astronaut Neil Armstrong, together with astronaut Edwin ”Buzz” Aldrin, confirmed the safe landing on the Moon of the Apollo11 on July 20th, 1969. This achievement would have never been possible without the engineering behind the construction of the Moon lander. LÄS MER

  3. 2. Performance Evaluation of a 3D Printed Mirror Actuator : A Comparison with the James Webb Space Telescope

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Louise Leopoldsson; Ellen Lindsjö; [2023]
    Nyckelord :Actuator; James Webb Space Telescope;

    Sammanfattning : This study aims to investigate the similarities in precision and performance between a James WebbSpace Telescope mirror actuator, the part controlling the motion of the primary mirror segments,and two 3D printed replicas. The two replicas were made from the plastics PLA and PETGand based on the designs of Zachary Tong. LÄS MER

  4. 3. Implementation and Evaluation of an Electronic Control Unit for an Automotive Testbed

    Kandidat-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Oscar Ceder; Talia Onen Corsi; [2023]
    Nyckelord :;

    Sammanfattning : Modern vehicles rely on heavily electronically implemented functionalities. Withexpanding electrification in the automotive industry, as well as the advent of autonomous vehicles,the amount of implemented functionalities are increasing. This has resulted in a shift towardscentralized electronic architecture in automotive design. LÄS MER

  5. 4. Propulsion modelling of a generic submarine propeller

    Master-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Gustav Boman; [2023]
    Nyckelord :OpenFOAM; CFD; actuator line model; rotor disk; actuator disk; INSEAN E1619; propeller;

    Sammanfattning : Self propulsion modelling is important in order to accurately simulate ships and submarinesusing Computational Fluid Dynamics (CFD). However, fully resolved simulations of hull andpropeller geometries are computationally heavy and time consuming. As such there is a greatinterest in lower order CFD models of propellers. LÄS MER

  7. 5. Electric alternative of hydraulic operation : Empowering safety through electrification

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Edvin Turesson; [2023]
    Nyckelord :Hydraulic; electrification;

    Sammanfattning : Electrification is a relevant subject in the industrial market and provides many benefits. The motivation for this project is to reduce the fire hazard by removing the hydraulic fluids from the steel mill environment. This project aims to analyze the existing hydraulic sealing unit and evaluate the electrification alternatives. LÄS MER