graduate student
Voronezh, Russian Federation
employee
Voronezh, Russian Federation
UDK 630 Лесное хозяйство. Лесоводство
GRNTI 68.47 Лесное хозяйство
Currently, in the forest complex, the working conditions of lifting and transport machines (PTM): self-propelled manipulator-type loaders are characterized by intensive technological loads, high speeds of lifting and moving loads, while the required resource characteristics are not always provided. The durability of PTM is mainly determined by the durability of the supporting metal structure. The analysis of various methods for assessing the reliability of PTM metal structures, taking into account the fatigue strength of the material, is given. It is established that one of the ways of designing structures with a minimum mass is to increase the design resistances of materials, however, the margin factor is inconvenient for assessing the readiness of the structure for operation. It is necessary to create a more universal criterion – the probability of failure. The aim of the work is to develop a methodology and algorithm for quantifying the probability of safe operation of a metal structure, taking into account the reduction in load-bearing capacity. To study the fatigue strength indicators of crane beams of forest complex machines and the factors influencing it, a crane of various lifting capacities of 32/5 tons is considered. The calculation of the fatigue strength of the metal structure of the crane was made. The number of loading cycles in the 3K operating mode after the expiration of 5 years is N=3,0∙10^5. With the material used, steel C255 [GOST 27772-88] with a temporary Run=380 MPa and a calculated Rv fatigue resistance taken depending on the temporary resistance of steel Run, therefore, Rv=120 MPa, fatigue strength was from 328.88 MPa to 167.98 MPa for various time intervals of 5-50 years. The calculated dependences of the safety coefficient on the operating time of the crane with a lifting capacity of 32/5 tons, depending on the operating mode of the crane from 7.9 to 2.01, are obtained. The results obtained can be used in the design of PTM metal structures also in construction and agriculture.
forest machines, metal structure, dynamic loads, cranes. manipulators, fatigue strength, reliability
1. Lukashuk O.A. Ustalostnyy raschet metallokonstrukciy gruzopod'emnyh mashin /Lukashuk O.A., Shvecov V.V. // Sb. po materialam konferencii «Innovacionnoe razvitie pod'emno-transportnoy tehniki» (26-27 maya 2022 goda, g. Bryansk), s.90-95. Rezhim dostupa: https://www.elibrary.ru/item.asp?id=49399814&pff=1
2. Korotkiy A.A. Voprosy bezopasnosti soedineniy konstrukciy gruzopod'emnyh kranov / A. A. Korotkiy, A. N. Pavlenko, E. A. Panfilova, D. N. Simonov // Bezopasnost' tehnogennyh i prirodnyh sistem. - 2022. - № 1. - S. 41-47. Rezhim dostupa: https://www.elibrary.ru/item.asp?id=48060515
3. Seliverstov V.G. Vzaimosvyaz' ustalostnyh i korrozionnyh processov pri ocenke resursa nesuschih metallokonstrukciy gruzopod'emnyh mashin / G. V. Seliverstov, K. S. Kolomiec V. Yu. Ancev, N. V. Anceva // Izvestiya Tul'skogo gosudarstvennogo universiteta. Tehnicheskie nauki. - 2021 - Vyp. 3. - S. 132-137. Rezhim dostupa: https://www.elibrary.ru/item.asp?id=45684528
4. Seliverstov G.V., Moiseev V.I. Ocenka nakoplennoy povrezhdennosti po kriteriyu rosta treschiny // Stroitel'nye i dorozhnye mashiny. 2020. 7. S. 31-35. Rezhim dostupa: https://www.elibrary.ru/item.asp?id=44044596
5. Solodov N.V., Vodyahin N.V., Ischuk Ya.L. Povyshenie nesuschey sposobnosti nahlestochnogo soedineniya tonkolistovyh detaley // Vestnik BGTUim.V.G.Shuhova,2019№9.S.30-35. Rezhim dostupa: https://www.elibrary.ru/item.asp?id=41213602
6. Elkhabeery O.H., Safar S.S., Mourad S.A. Flexural strength of steel I-beams reinforced with CFRP sheets attension flange // Journal of Constructional Steel Research. 2018. Vol. 148. Pp. 572-588. DOI: https://doi.org/10.1016/j.jcsr.2018.05.038
7. Kotesov, A. A. Metodika obespecheniya bezotkaznosti metallokonstrukciy gruzopod'emnyh kranov v techenie sroka sluzhby / A. A. Kotesov, V. E. Kas'yanov, A. A. Kotesova // Vestnik RGUPS. - 2020. - № 4. - S. 30-39. Rezhim dostupa:https://www.elibrary.ru/item.asp?id=44503577
8. Zverev I.A. Metodika ocenki staticheskoy prochnosti sharnirnyh soedineniy lesnyh mashin s ispol'zovaniem programmnogo obespecheniya «ANSYS» / Zverev I.A., Trofimov A.V. // Povyshenie effektivnosti lesnogo kompleksa : materialy Vos'moy Vserossiyskoy nacional'noy nauchno-prakticheskoy konferencii s mezhdunarodnym ucha-stiem / M-vo nauki i vyssh. obrazovaniya Ros. Federacii, FGBOU Petrozav. gos. un-t. - Petrozavodsk : Izdatel'stvo PetrGU, 2022, s.171-174 Rezhim dostupa: https://www.elibrary.ru/item.asp?id=44119394
9. Myl'nikov v.v.1, Pronin a.i.2, Kondrashkin o.b.1, Shetulov d.i., Issledovanie stroitel'noy stali pri ispytaniyah na ustalost' po sheme konsol'nogo izgiba s vrascheniem/ «Mehanicheskoe oborudovanie metallurgicheskih zavodov». №2(17) 2021 s.3-8 Rezhim dostupa: https://www.elibrary.ru/item.asp?id=47961181
10. Guchinskiy R.V. Neopredelennosti v ocenke ustalosti konstrukciy pri proektirovanii i ekspluatacii / R. V. Guchinskiy, S. V. Petinov // Vestnik Ural'skogo gosudarstvennogo universiteta putey soobscheniya - 2021.- № 4 (52). - S. 35-44. Rezhim dostupa: https://www.elibrary.ru/item.asp?id=47395900.
11. Skobcov I.G. Ocenka veroyatnosti otkaza elementov konstrukciy lesnyh mashin pri nepolnoy informacii o nagruzhennosti / I. G. Skobcov, M. S. Korolev, A. D. Shabalin // Povyshenie effektivnosti lesnogo kompleksa : materialy vos'moy Vseros. nac. nauch.-prakt. konf. s mezhdunar. uchastiem. - Petrozavodsk : Izd-vo PetrGU, 2021, s.174-177. Rezhim dostupa: https://www.elibrary.ru/item.asp?id=47156156
12. Pitukhin, A. V. Optimal Design Based on Probability Approach And Fracture Mechanics / A. V. Pitukhin, I. G. Skobtsov [Electronic resource] // IOP Conference Series: Earth and Environmental Science. - 2019. - № 560. DOI:https://doihttps://doi.org/10.1088/1757-899X/560/1/012085
13. Tarbeev A. A. Obespechenie nadezhnosti gidroprivodov lesnyh mashin sovershenstvovaniem metodov i sredstv ih diagnostirovaniya Special'nost' 05.21.01 - tehnologiya i mashiny lesozagotovok i lesnogo hozyaystva. Avtoreferat dissertaciya na soiskanie uchenoy stepeni kandidata tehnicheskih nauk, Yoshkar-Ola, 2019. Rezhim dostupa: https://www.volgatech.net/upload/documents/defence-of-theses/diss_TarbeevAA.pdf.
14. Chernik D. V., Chernik K. N. 2020 // IOP Conf. Ser.: Mater. Sci. Eng. 919 052037 DOI: http://doi.org/10.1088/1757-899X/919/5/052037.
15. Chernik D. V. Dynamic measurements of side loads on technological equipment of tracked forest loader 2019 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon) Rezhimdostupa: https://www.elibrary.ru/item.asp?id=43234115
16. Lagerev A.V., Lagerev I.A. Modelirovanie rabochih processov v drossel'noreguliruemom gidroprivode manipulyacionnyh sistem mobil'nyh mashin pri razdel'nom dvizhenii zven'ev // Nauchnotehnicheskiy vestnik Bryanskogo gosudarstvennogo universiteta. 2018. №4. S. 355- 379. DOI: https://doi.org/10.22281/2413-9920- 2018-04-04-355-379
17. Loveykin, V. S. Sintez optimal'nogo dinamicheskogo rezhima dvizheniya strely manipulyatora, ustanovlennogo na uprugom osnovanii / V. S. Loveykin, D. A. Mischuk // Nauka i tehnika. 2019. T. 18, № 1. S. 55-61. Rezhim dostupa: https://www.elibrary.ru/item.asp?id=37083940.
18. Popikov P.I., Chetverikova I.V., Voskoboynik M.Yu., Modelirovanie rabochih processov gidroprivoda mehanizma pod'ema manipulyatora avtosortimentovoza// aktual'nye napravleniya nauchnyh issledovaniy HHI veka: teoriya i praktika. 2018. T. 6. №7 (43). S. 76-80 Rezhim dostupa: https://www.elibrary.ru/item.asp?id=36745449
19. Jensen K. J., Ebbesen M. K., Hansen M. R. Novel Concept for Electro-Hydrostatic Actuators for Motion Control of Hydraulic Manipulators // Energies. - 2021. - T. 14. - №. 20. - P. 6566. DOI: https://doi.org/10.3390/en14206566.
20. Jensen K. J., Ebbesen M. K., Hansen M. R. Anti-swing control of a hydraulic loader crane with a hanging load // Mechatronics. - 2021. - T. 77. - P. 102599. DOI: https://doi.org/10.1016/j.mechatronics.2021.102599.
21. Agostini T. et al. Effect of energy recovery on efficiency in electro-hydrostatic closed system for differential actuator // Actuators. - 2020. - T. 9. - №. 1. - P. 12. DOI: https://doi.org/10.3390/act9010012.
22. Glushkov S. Rybak A., Popikov P., Uskov V., Bogdanov D., Konyukhov A. Modeling of the working energy-saving processes of the hydraulic drive of the lifting mechanism of a forestry manipulator // Forestry Engineering Journal. 2021. T. 11. № 4 (44). P. 88-99. DOI:https://doi.org/10.34220/issn.2222-7962/2021.4/8
