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0412U000973,
к.т.н.
10-04-2012
o
Regularities of wear of direct and inverse tribosystem with controlled heat flows
Velikodny Denis Aleksandrovich,
popup.head Voytov Victor Anatolyevich
popup.opponent Черновол Михайло Іванович
popup.opponent Градиський Юрій Олександрович
Дисертаційна робота направлена на дослідження механізмів і чинників прояву ефекту самоупорядкування на поверхнях тертя прямих та зворотних трібосистем з керованими тепловими потоками та розробки практичних рекомендацій щодо конструювання трібосистем з метою зниження швидкості зношування та втрат на тертя. В роботі отримані залежності зміни тріботехнічних характеристик прямих та зворотних трібосистем з тепловими опорами на поверхнях тертя. Встановлено, що напрям теплового потоку у бік найбільш зносостійкого трібоелементу призведе до зниження швидкості зношування і коефіцієнту тертя трібосистеми за рахунок процесів самоупорядкування на поверхнях тертя. За допомогою мікроструктурного аналізу поверхонь тертя встановлено, що у зворотних трібосистем за матеріалами або за геометрією з керованим тепловим потоком ініціюється ефект масопереносу. Експериментальним шляхом встановлені чинники і умови інтенсифікації масопереносу, до яких відносяться: напрям і величина теплового потоку, температура, термоциклування поверхонь тертя мідних сплавів і висока, беззмінна в часі, температура стальної поверхні. Такі умови реалізуються в конструкціях зворотних трібосистем з керованим тепловим потоком у бік стального трібоелемента.
2012-04-10
2020-04-04
Updated: 2025-12-07
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