APPLICATION OF HEAT AND MASS TRANSFER METHODS FOR OPERATIONAL CONTROL OF DEGRADATION OF HYDRAULIC OILS
Abstract and keywords
Abstract:
The operation of logging machines causes high loads on the hydraulic system. Intense heat generation accelerates the degradation of oils, reducing efficiency and increasing the risk of failures. Laboratory analysis does not allow for prompt monitoring of the fluid condition during operation. A new diagnostic method based on the analysis of the thermophysical characteristics of the oil has been proposed. The method links changes in the coefficients of thermal diffusivity and thermal conductivity to the degree of aging and contamination. Thermomass transfer methods allow for non-invasive detection of critical changes in the composition. The developed approach opens up the possibility of creating onboard diagnostic systems for timely maintenance and improving the reliability of logging equipment hydraulic systems.

Keywords:
hydraulic oil, logging machines, heat and mass transfer, thermophysical characteristics, operational control, oil degradation, diagnostics
References

1. ASTM D445-10 Standartnyy metod opredeleniya kinematicheskoy vyazkosti prozrachnyh i neprozrachnyh zhidkostey (i raschet dinamicheskoy vyazkosti).

2. ASTM D6595 Standartnyy metod ispytaniy dlya opredeleniya produktov iznosa metallov i zagryazneniy v otrabotannyh smazochnyh maslah ili otrabotannyh gidravlicheskih zhidkostyah metodom atomno-emissionnoy spektrometrii s vraschayuschimsya diskovym elektrodom.

3. ASTM D2070-91(2010) Standartnyy metod ispytaniya gidravlicheskih masel na termicheskuyu stabil'nost'.

4. Vasil'eva, L. S. Himmotologiya topliv, smazochnyh materialov i special'nyh zhidkostey dlya avtomobil'nogo transporta. Pokazateli kachestva. Klassifikaciya. Assortiment. Ocenka pokazateley kachestva i rezul'tatov ispytaniy: ucheb. posobie dlya stud. vuzov / L. S. Vasil'eva, Yu. V. Panov, A. A. Haziev, A. V. Laushkin; pod red. L. S. Vasil'evoy. – Moskva : MADI, 2020. – 164 s.

5. Razrabotka metodiki ocenki sostoyaniya gidravlicheskogo masla na osnove ego teplofizicheskih pokazateley / E. R. Vernigora, V. A. Ivannikov, S. N. Kruhmalev, A. E. Matyashov, G. V. Seredin // Perspektivy razvitiya, innovacii i informacionnye tehnologii na transporte - 2025 : Materialy Mezhdunarodnoy molodezhnoy nauchno-prakticheskoy konferencii, posvyaschennoy 95-letiyu VGLTU im. G.F. Morozova, Voronezh, 23-24 oktyabrya 2025 goda. – Voronezh : Voronezhskiy gosudarstvennyy lesotehnicheskiy universitet im. G.F. Morozova, 2025. – S. 260-267. DOI: https://doi.org/10.58168/MSTT2025_260-267; EDN: https://elibrary.ru/LLPSCV

6. Opredelenie kachestva gidravlicheskogo masla po teplofizicheskim harakteristikam / A. N. Shvyrev, A. V. Latynin, B. N. Chumakov, D. A. Turkota, E. A. Astahova, S. A. Shvyrev // Innovacionnye tehnologii na avtomobil'nom transporte : Materialy Vserossiyskoy nauchno-tehnicheskoy konferencii, Voronezh, 16-17 maya 2024 goda. – Voronezh : Voronezhskiy gosudarstvennyy lesotehnicheskiy universitet imeni G.F. Morozova, 2024. – S. 28-32. DOI: https://doi.org/10.58168/MOTOR2024_28-32; EDN: https://elibrary.ru/AJDXZY

7. Shvyrev, A. N. Opredelenie kachestva gidravlicheskih zhidkostey teplovym sposobom / A. N. Shvyrev, A. V. Latynin, A. V. Chupahin // Innovacionnye tehnologii v agropromyshlennom komplekse : Materialy mezhdunarodnoy nauchno-prakticheskoy konferencii, Voronezh, 23 maya 2023 goda. – Voronezh : Voronezhskiy gosudarstvennyy agrarnyy universitet im. Imperatora Petra I, 2023. – S. 65-68. EDN: https://elibrary.ru/CVMBJV

8. ASTM D7896 – Standartnyy metod opredeleniya teploprovodnosti zhidkostey.

Login or Create
* Forgot password?