Sökning: "Hydraulic motors"

Visar resultat 1 - 5 av 12 avhandlingar innehållade orden Hydraulic motors.

  1. 1. Simulation of tribology in hydraulic motors

    Författare :Patrik Isaksson; Hubert Herbst; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

    Sammanfattning : Tribology is the science of friction, lubrication and wear. A tribological interface is composed of two contacting surfaces in relative motion. The radial piston hydraulic motor includes a lot of tribological interfaces. LÄS MER

  3. 2. On Motion Control of Linear Incremental Hydraulic Actuators

    Författare :Martin Hochwallner; Petter Krus; Kalevi Huhtala; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Linear Incremental Hydraulic Actuator; novel actuator; linear hydraulic actuator; tracking problem; hydraulic servo system; digital fluid power;

    Sammanfattning : Linear Incremental Hydraulic Actuators combine one or more short-stroke cylinders, and two or more engaging/disengaging mechanisms into one actuator with long, medium, or even unlimited stroke length. The motion of each single short-stroke actuator concatenated by the engaging/disengaging mechanisms forms the motion of the linear incremental hydraulic actuator. LÄS MER

  4. 3. Tribology of hydraulic motor

    Författare :Daniel Nilsson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

    Sammanfattning : A radial piston hydraulic motor has several components involving sliding or rolling interfaces which may encounter tribological problems. Seizure is one of them and it results in complete stoppage of motion between the relatively moving components and has serious consequences in terms of the operation of a hydraulic motor. LÄS MER

  5. 4. En produkthistoria! : AB Hägglund & Söner 1922-1981

    Författare :Helén Anderson; Bengt Johannisson; Handelshögskolan i Stockholm; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Technological development; Industrial development; Hägglund Söner; business history; Products; history; Deck cranes; Vehicles; Hydraulic motors; Business studies; Företagsekonomi; Business administration; Företagsekonomi;

    Sammanfattning : Kring en kärna av kompetens inom mekanisk verkstadsindustri har det ständigt tillverkats nya produkter vid AB Hägglund & Söner med säte i Örnsköldsvik. Möbler, busskarosserier, flygplan, gruvlok, elektriska motorer, svetsmaskiner, fartygskranar och hydrauliska motorer är bara några exempel. LÄS MER

  7. 5. On Energy Efficient Mobile Hydraulic Systems : with Focus on Linear Actuation

    Författare :Kim Heybroek; Petter Krus; Jan-Ove Palmberg; Torben Ole Andersen; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : In this dissertation, energy efficient hydraulic systems are studied. The research focuses on solutions for linear actuators in mobile applications, with emphasis on construction machines. Alongside the aspect of energy efficiency, the thesis deals with competing aspects in hydraulic system design found in the development of construction machines. LÄS MER