Search for dissertations about: "journal bearing analysis"

Showing result 1 - 5 of 9 swedish dissertations containing the words journal bearing analysis.

  2. 1. Design, testing and analysis of journal bearings for construction equipment

    Author : Henrik Strand; Sören Andersson; Arto Lehtovaara; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Contact Mechanics; Finite Element; Grease; Journal Bearing; Lubrication; Replica Technique; Test Apparatus; Tribology; Wear; Mechanical manufacturing engineering; Mekanisk tillverkningsteknik;

    Abstract : Grease-lubricated journal bearings present a common challenge for construction equipment manufacturers in the world. The common design methodology is based on empirical data and has worked very well historically because the market and governments have accepted that bearings in construction equipment need frequent lubrication and exchange of worn parts. READ MORE

  4. 2. Nonlinear dynamic analysis of vertical rotors with tilting pad journal bearings

    Author : Gudeta Benti; Jan-Olov Aidanpää; Rolf Gustavsson; Roland Larsson; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; vertical rotor; tilting pad journal bearing; stiffness; damping; Machine Design; Maskinkonstruktion;

    Abstract : .... READ MORE

  5. 3. Nonlinear Isoviscous Behaviour of Compliant Journal Bearings

    Author : Matthew Cha; Sergei Glavatskih; Ilmar Santos; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Compliant Journal Bearings;

    Abstract : Plans to shut down nuclear power plants in some European countries as well as increased electricity production by wind and solar power will increase the work load on hydroelectric power plants in the future. Also, due to the power grid regulations, hydroelectric power plants undergo more frequent start-ups and shut-downs. READ MORE

  6. 4. Coupled vibrations in horizontal and vertical rotor-bearings systems

    Author : Jean-Claude Luneno; Magnus Karlberg; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Technology - Engineering mechanics; Teknikvetenskap - Teknisk mekanik; Hållfasthetslära; Solid Mechanics;

    Abstract : For dynamical systems having several degrees of freedom, motion in one direction can induce motion in the other and/or vice versa. This means that there is a certain coupling between these two motions. Coupling can in some cases be a source of instability that causes self-excited vibrations in rotating machinery. READ MORE

  7. 5. Thermohydrodynamics of sliding contacts with textured surfaces

    Author : Samuel Cupillard; Paul Allaire; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

    Abstract : Hydrodynamic sliding contacts like those found in journal or thrust bearings are frequently encountered in various types of machinery from computers to large turbines. These contacts, involving a variation in film thickness, are used to generate pressure in the lubricant film and separate the surfaces in relative motion. READ MORE