Essays about: "engine main bearings"

Showing result 1 - 5 of 6 essays containing the words engine main bearings.

  1. 1. Multibody modelling of the vibrations in an aircraft engine

    University essay from KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Author : Charly Mollet; [2022]
    Keywords : Vibrations; Multibody Modelling; Rolling Bearings; Rotor Dynamics; Reduction Processes; Vibrationer; multikroppsmodellering; rullingslager; rotordynamik; reducktionsprocesser;

    Abstract : During the assembly of aircraft engines, some clearance is left in the rolling bearings mainly to reduce friction. However this clearance might allow the rolling element to vibrate during flight. Indeed, unwanted vibrations called non-synchronous vibrations (NSV) appear on the data recorded by the sensors on some development engines. READ MORE

  3. 2. Tribological performance of different crankshaft bearings in conjunction with textured shaft surfaces

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Lakshminarayana Reddy Tamatam; [2017]
    Keywords : Tribology; journal bearings; engine main bearings; automotive; friction; wear;

    Abstract : Improving vehicle efficiency and complying to stricter exhaust emission legislations are some of the driving factors to advancement in technology of engine components. The main bearings in an internal combustion engine contribute significant amount of friction. These bearings support engine loads and allow free rotation of the crankshaft. READ MORE

  4. 3. Journal Bearing Friction Optimization

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Szerena - Krisztina Ujvari; [2016]
    Keywords : tibology; engine main bearings; friction and wear; optimization;

    Abstract : Engine downsizing, improving fuel efficiency while satisfying the environmental legislations are one of the main driving forces in developing new solutions for passenger cars.Engine main bearings, are journal bearings which support the crankshaft and operate principally in full film lubrication. READ MORE

  5. 4. Numerical Modeling of Plain Journal Bearings within a Heavy-Duty Engine Oil System using GT-SUITE

    University essay from Umeå universitet/Institutionen för fysik

    Author : Fredrik Kälvelid; [2016]
    Keywords : ;

    Abstract : Main and connecting rod bearings along the crankshaft in a heavy-duty engine oil system requires efficient feed of oil flow to ensure the performance of lubrication, cooling and cleaning. The bearings and builded bearing models considered in this work are based on a Volvo 13L engine. READ MORE

  6. 5. A method for measuring Crank Angle resolved Thrust Loads

    University essay from KTH/Energiteknik

    Author : Janakiraman Thiyagarajan; [2016]
    Keywords : ;

    Abstract : This thesis report elucidates the experimental and analytical methods of determining the axial thrust loads of a twin scroll turbocharger mounted on a 6-cylinder diesel engine, tested at Scania CV AB, Sodertalje. Literature survey revealed several methods to experimentally determine the thrust loads but the concept of using strain gauges was nally selected. READ MORE