Sökning: "Hydraulic forces"

Visar resultat 1 - 5 av 33 avhandlingar innehållade orden Hydraulic forces.

  1. 1. The Cardiac State Diagram : A new method for assessing cardiac mechanics

    Författare :Jonas Johnson; Lars-Åke Brodin; Tomas Jansson; KTH; []
    Nyckelord :Cardiac State Diagram; Heart; Hydraulic; Mechanics; DAPP; DeltaV; Hydraulic forces; left ventricular; diastole; Applied Medical Technology; Tillämpad medicinsk teknik;

    Sammanfattning : .... LÄS MER

  3. 2. Design principles for noise reduction in hydraulic piston pumps : simulation, optimisation and experimental verification

    Författare :Andreas Johansson; Kevin Edge; Linköpings universitet; []
    Nyckelord :hydraulic piston pumps; TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : Noise reduction in hydmulic systems has been an important research topic for several decades. In recent years, industry's interest in the area has grown dramatically. The reason is new national and international requirements and legislation governing working conditions. LÄS MER

  4. 3. Design of Electro-Hydraulic Energy Converters : With Focus on Integrated Designs and Valve Plate Rotation

    Författare :Thomas Heeger; Liselott Ericson; Andreas Johansson; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : In mobile working machines, there is a trend towards replacing combustion engines by electric machines to reduce their carbon footprint. This provides several advantages and challenges for the hydraulic system. The low efficiency of conventional hydraulic systems is no longer acceptable due to the volume and cost of batteries. LÄS MER

  5. 4. 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

  7. 5. A Co-Simulation Tool Applied to Hydraulic Percussion Units

    Författare :Håkan Andersson; Daniel Leidermark; Kjell Simonsson; Joakim Holmberg; Pär Jonsén; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : In this dissertation, a co-simulation tool is presented that is meant to comprise a more comprehensive environment for modelling and simulation of hydraulic percussion units, which are used in hydraulic hammers and rock drills. These units generates the large impact forces, which are needed to demolish concrete structures in the construction industry or to fragment rock when drilling blast holes in mine drifting. LÄS MER