Search for dissertations about: "piston rod"

Found 5 swedish dissertations containing the words piston rod.

  2. 1. Friction in seals acting on rough piston rod surfaces

    Author : Jonas Olsson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : .... READ MORE

  4. 2. Submerged Transmission in Wave Energy Converters : Full Scale In-Situ Experimental Measurements

    Author : Erland Strömstedt; Mats Leijon; Hans Bernhoff; Jan-Olov Aidanpää; Uppsala universitet; []
    Keywords : 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;

    Abstract : 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. READ MORE

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

    Author : Changming Wu; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mining and Rock Engineering; Gruv- och berganläggningsteknik;

    Abstract : 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. READ MORE

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

    Author : Henrik Pettersson; Matti Vilenius; Linköpings universitet; []
    Keywords : ;

    Abstract : 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. READ MORE

  7. 5. Improving the mobility performance of tracked vehicles in deep snow

    Author : Anders Bodin; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

    Abstract : 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. READ MORE