Sökning: "hydrostatic"

Visar resultat 1 - 5 av 84 avhandlingar innehållade ordet hydrostatic.

  1. 1. On the inception of leakage : Effect of hydrostatic pressure on the sealing interface

    Författare :De Huang; Andreas Almqvist; Roland Larsson; Xiang Yan; Alessandro Ruggiero; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; static seal; contact mechanics; hydrostatic; critical pressure; leakage; Maskinelement; Machine Elements;

    Sammanfattning : As the move towards sustainability continues,  attention needs to be paid to the development of new machinery with high performance and low environmental impact. It places increasing demands on low/zero-emission sealing with a long lifetime. LÄS MER

  3. 2. On Complex Hydrostatic Transmissions : Design of a Two-Motor Concept using Computer-Aided Development Tools

    Författare :Mikael Sannelius; Jan Wikander; Stockholm Kungliga Tekniska Högskolan; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Hydrostatic drives are being used in heavy, low-speed vehicles to an ever-increasing extent. The reason for this is that a number of advantages can be achieved such as stepless gear ratios, simple power distribution and high stiffness. Increased demands have led to an interest for new conceptual designs for hydrostatic transmissions. LÄS MER

  4. 3. Treatment of hydrostatic pulmonary oedema : an experimental study

    Författare :Carl-Johan Wickerts; Uppsala universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : .... LÄS MER

  5. 4. Wear of piston rings in hydrostatic transmissions

    Författare :Ulf Skytte af Sätra; Sören Andersson; Kenneth Holmberg; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; piston ring; surface roughness; texture; coating; wear; hydraulic motor; Construction engineering; Konstruktionsteknik; Mechanical engineering; Maskinteknik;

    Sammanfattning : This study focuses on the wear of piston rings in a hydraulic radial piston motor. The piston ring has to satisfy increasing demands for reliability and longer service life. It has two contacting surfaces, the face and the flank, and operates under a boundary lubrication state. LÄS MER

  7. 5. Numerical and experimental study of performance of a hydraulic motor

    Författare :Leon Dahlén; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hydraulic fluid; hydrostatic transmission; hydraulic motor; Engineering mechanics; Teknisk mekanik; Maskinelement;

    Sammanfattning : The aim of this study was to develop an understanding of the fluid properties that influence the efficiency of hydraulic systems in a steady-state, especially components in hydrostatic transmission systems under different running conditions. The aim has also been to investigate and model the sources of losses in hydraulic machines, in order to estimate the losses, taking fluid properties into account. LÄS MER