Search for dissertations about: "journal bearings"

Showing result 1 - 5 of 23 swedish dissertations containing the words journal bearings.

  2. 1. 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

  4. 2. 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

  5. 3. 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

  6. 4. Sliding bearings for hydropower applications : novel materials, surface texture and EALs

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

    Abstract : Hydropower, the utilisation of water as a means of driving machinery, has been used for many centuries. Today, the great power of water is being harnessed to generate as much as 20% of worldwide electricity. The requirement for reliable and efficient electricity generation needs to be matched by environmental awareness on the part of the industry. READ MORE

  7. 5. Thermo-Elasto-Hydrodynamic lubrication modeling of Tilting Pad Journal Bearings

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

    Abstract : The journal bearing is a critical machine element typically used to support rotating motion in high speed machinery. Through the generation of a hydrodynamic pressure in its thin lubricant film,which is usually in the order of 10-100μmthick depending on the diameter of the journal itself, the bearing is able to withstand large loads, both statically and dynamically, while having a very low rate of wear. READ MORE