Bulletin of Bryansk state technical university Bulletin of Bryansk state technical university Вестник Брянского государственного технического университета 1999-8775 13508 10.12737/22010 Трение и износ Friction and wear Трение и износ MODIFIED ENERGY MODEL OF FRICTION AND WEAR AS APPLIED TO INTERNAL COMBUSTION ENGINE TRIBOCOUPLINGS МОДИФИЦИРОВАННАЯ ЭНЕРГЕТИЧЕСКАЯ МОДЕЛЬ ТРЕНИЯ И ИЗНАШИВАНИЯ ПРИМЕНИТЕЛЬНО К ТРИБОСОПРЯЖЕНИЯМ ДВС Дойкин А. А. Doykin A. А. doikinaa@susu.ru Гаврилов К. В. Gavrilov K. В. gavrilovkv@susu.ru Лазарев В. Е. Lazarev V. Е. lazarevea@susu.ru Секвард-Бэйж Й Sekvard-Beyzh Y sequard@ac2t.at 11 10 2016 11 10 2016 2016 3 58 66 https://naukaru.ru/en/nauka/article/13508/view

Рассмотрена модель трения и изнашивания для трибосопряжения «направляющая (юбка) поршня - гильза цилиндра двигателя внутреннего сгорания, которая позволяет объединить прогнозирование объема изношенного слоя с теорией усталости, что дает возможность использовать ее применительно к анализу долговечности любой трибосистемы, совершающей возвратно-поступательные движения.

For the description and wear prediction in tribicouplings there are theoretical formulae and also empirical models. Most of well-known regulations may be used only under specific conditions of contacting. The purpose of this work is the investigation of tribicoupling “piston guide – cylinder liner” in an internal combustion engine (ICE). In particular, for that there were carried out experimental investigations on a tribometer realizing a reciprocal motion of piston and cylinder liner samples. The results of experimental investigations were analyzed with the use of a wear model which is the most applicable for the description of this type of tribocouplings. This model is based on the combination of energetic theory and molecularmechanical method with a precise definition of friction surface topography parameters. Such a modified model of friction and wear allows combining the prognostication of a layer worn with fatigue theory that gives a possibility of its use as applied to the life analysis of any reciprocating tribosystem.

 трибосопряжение «поршень-цилиндр» модель изнашивания топография поверхности трения “piston-cylinder” tribocoupling wear model topography of friction surface

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