Sökning: "Bar modeling"

Visar resultat 16 - 20 av 22 uppsatser innehållade orden Bar modeling.

  1. 16. Prediction of the machine tool errors under quasi-static load : Developing methodology through the synthesis of bottom-up and top-down modeling approach

    Master-uppsats, KTH/Industriell produktion

    Författare :Károly Szipka; [2015]
    Nyckelord :;

    Sammanfattning : One of the biggest challenges in the manufacturing industry is to increase the understanding of the sources of the errors and their effects on machining systems accuracy. In this thesis a new robust empirical evaluation method is developed to predict the machine tool errors under quasi-static load including the effect of the variation of stiffness in the workspace, the geometric and the kinematic errors. LÄS MER

  3. 17. Design and Manufacturing of Pneumatic Test Stand for Rod-less Cylinder vertical application

    Master-uppsats, Fluida och mekatroniska system; Tekniska högskolan

    Författare :Rocky A. Sabigoro; [2014]
    Nyckelord :;

    Sammanfattning : Within LiU Fluid laboratory there had been a number of hydraulic and pneumatic test stands for research projects and teaching. The effort was needed to do more extension within the field of pneumatics. This thesis was about designing, manufacturing, building and testing the Test Stand for vertical application of pneumatic rodless cylinder. LÄS MER

  4. 18. Non-reacting fuel spray simulations under direct diesel engine conditions

    Magister-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Alejandro Municio Aranguez; [2012]
    Nyckelord :Diesel spray injections LES LPT; Technology and Engineering;

    Sammanfattning : Because of the increasing demand of low polluting and efficient diesel engines, numerous studies related to the different processes that take place in them are being carried out. This study treats the direct injection of fuel at high pressures (c.a. 1500 bar). LÄS MER

  5. 19. CFD analyses of the gas flow inside the vessel of a hot isostatic press

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :Andreas Åkerberg; [2012]
    Nyckelord :CFD; hot isostatic press; computational fluid dynamics; numerical methods; furnace; pressurized gas; vessel; rapid cooling;

    Sammanfattning : Hot isostatic pressing (HIP) is a thermal treatment method that is used to consolidate, densify or bondcomponents and materials. Argon gas is commonly used as the pressure medium and is isostaticallyapplied to the material with an excess pressure of 500-2000 bar and a temperature of 500-2200oC. LÄS MER

  7. 20. Controls of seafloor depth on hydrothermal vent temperatures : prediction, observation & 2D finite element modeling

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Christine Andersen; [2010]
    Nyckelord :porous convection; compressible fluid flow; boiling; mixing; low heat supply; conductive heat flow; porös konvektion; kompressibelt flöde; kokning; blanding; lågtempererad värmekälla; konduktivt värmeflöde; Earth and Environmental Sciences;

    Sammanfattning : Circulation of hot hydrothermal fluids in fractures and faults of the oceanic crust is driven by temperature and pressure gradients. Fluid discharge is focused to vertical structures, black or white smoker chimneys on the seafloor. Hydrothermal vent temperatures should hypothetically be directly related to water depth. LÄS MER