Modelling of contact interaction by “third body” in tribological problems

Автор(и)

  • В. М. Онишкевич Національний лісотехнічний університет України, 79057, м. Львів, вул. Генерала Чупринки, 103
  • Г. М. Барабаш Львівський національний університет імені Івана Франка, 79000, м. Львів, вул. Університетська, 1 https://orcid.org/0000-0003-3258-8518

DOI:

https://doi.org/10.17721/1812-5409.2021/3.15

Ключові слова:

контакт, трибологія, термопроникність

Анотація

The variety of factors affecting the thermal conditions of a frictional couple results in complexity of the simulation of this problem. Among these factors, thermophysical (thermal conductivity, specific heat, coefficient of linear expansion of bodies, etc.) and also mechanical ones (elasticity, hardness of contacting bodies, etc.) play an important role. The conditions of friction, wear and heat generation are also determined by the characteristics of the so-called “third body”, i.e., thin near-surface and intermediate layers, the physical and mechanical properties of which differ from those of the interacting bodies, and by the microgeometry of their surfaces in the contact zone. The method of determination of thermal contact conductance in mathematical modelling of contact interaction with considering friction and hear generation by “third body” is presented. Using of modified conditions of heat contact in mathematical model of contact thermoelasticity taking into account of friction and heat generation is proposed. After numerical analysis, the graphs of dependence of thermal contact conductance on the input parameters are constructed and substantial influence of some of them is detected. On the example of one-dimensional non-stationary contact problem of thermoelasticity with heat generation of friction the influence of some physical and mechanical parameters on the temperature and heat fluxes in the contact bodies is investigated.

Pages of the article in the issue: 85 - 88

Language of the article: Ukrainian

Посилання

SHVEC, R. N. & MARTYNIAK, R. M. (1988) Termouprugoie kontaktnoie vzaimodeystviye tel pri nalichii poverhnostnyh teplofizicheskih neodnorodnostey. Mat. metody i fiz.-meh. polia. 27. p. 23-28.

LEVYTSKYI, V.P. & ONYSHKEVYCH, V.M. (1999) Doslidjennia vplyvu vlastyvostey “tretiogo tila” na teploutvorennia vid tertia. Mat. metody ta fiz.-meh. polia. 42(1). p. 82-86.

Завантаження

Опубліковано

07.12.2021

Номер

Розділ

Диференціальні рівняння, математична фізика та механіка

Як цитувати

Онишкевич, В. М., & Барабаш, Г. М. (2021). Modelling of contact interaction by “third body” in tribological problems. Вісник Київського національного університету імені Тараса Шевченка. Фізико-математичні науки, 3, 85-88. https://doi.org/10.17721/1812-5409.2021/3.15