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0421U101039,
Кандидат технічних наук
08-04-2021
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Increasing the tribosystems resource in aggregation by switching them to abnormally low friction and wear
Varvarov Valeriy Volodymyrovych,
popup.head Vojtov Victor Anatolijovich
popup.opponent Aulin Victor Vasylovych
popup.opponent Tsymbal Bohdan Mykhailovich
У дисертаційній роботі вирішено актуальне наукове-практичне завдання підвищення зносостійкості (ресурсу) трибосистем в агрегатобудуванні переведенням їх в режим аномально низького тертя та зношування. Визначено реологічну будову поверхневого шару трибосистем при якій виникають умови для переходу до аномально низького тертя та зношування. Розроблено модель контактної взаємодії трибоелементів на рівні мікрошорсткості, визначено роль шорсткості поверхонь, як фактора саморегулювання при зміні зовнішніх умов тертя. Проведено амплітудно-частотний аналіз коливань в умовах аномально низького тертя та зношування. Зафіксовано та дано пояснення переходу трибосистем від аномально низького тертя та зношування до негативного тертя при зміні умов тертя та аналіз механізму руйнування поверхонь при негативному терті. Розроблено практичні рекомендації з модифікування бронзових елементів трибосистем «сталь-бронза», при якому відбувається направлена зміна реологічної будови поверхневих шарів та в них виникають умови аномально низького тертя та зношування, що значно підвищує їх ресурс. Результати роботи впроваджено на АТ «ФЕД» при виготовленні приводів-генераторів ГП21КМ літаків сімейства Ан 148/158/178, ресурс яких збільшився більш, ніж в 4 рази.
2021-04-21
2021-04-21
Updated: 2025-12-07
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