Sökning: "piston rod"

Hittade 4 avhandlingar innehållade orden piston rod.

  1. 1. Submerged Transmission in Wave Energy Converters Full Scale In-Situ Experimental Measurements

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Erland Strömstedt; Uppsala universitet.; [2012]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wave energy converter; direct drive; submerged transmission; piston rod; seal housing; sealing system; laser triangulation sensor; offshore measurements; relative displacement; vibrations; tilt angle; tilting; wear estimation.; Engineering Science with specialization in Science of Electricity; Teknisk fysik med inriktning mot elektricitetslära;

    Sammanfattning : Different wave power technologies are in development around the world in different stages of prototype testing. So far only a few devices have been deployed offshore at full scale for extended periods of time. Little data is published about how these different devices perform. LÄS MER

  2. 2. Influence of springy impact interface and curved drill rods on energy transfer in percussive rock drilling

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Changming Wu; [1993]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gruv- och Berganläggningsteknik; Mining and Rock Engineering;

    Sammanfattning : The influence of springy impact interface and of curved drill rods on energy transfer in percussive rock drilling was studied. Analytical models for pneumatic and hydraulic rock drills were introduced, in which the springy piston-rod impact interface was taken into account. LÄS MER

  3. 3. On valve controlled fluid power systems : flow amplifier and percussive rock drilling

    Detta är en avhandling från Linköping : Linköpings universitet

    Författare :Henrik Pettersson; Linköpings universitet.; Linköpings universitet.; [2002]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis discusses how the design of hydraulic systems and components can be made to meet the demands of a future market in terms of efficiency, flexibility and cost. It also discusses how computer simulation can support the designer to get a higher knowledge of the system and to make the design phase more efficient. LÄS MER

  4. 4. Improving the mobility performance of tracked vehicles in deep snow

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Anders Bodin; [2002]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

    Sammanfattning : Improving the mobility of tracked vehicles in deep snow requires an increase in the knowledge and understanding of the design parameters which influence the tractive performance. This relates particularly to the new vehicle requirements of increased payload to vehicle weight ratio, improved fuel economy and reduced life cycle costs. LÄS MER