Vibrations in engineering and technology

Zdanevych Serhii – PhD, Associate Professor Department of Higher Mathematics, Physics and General Engineering Disciplines Dnipro State Agrarian and Economic University (Sergiy Yefremov str., 25, Dnipro, Ukraine, 49009, е-mail: zdanevych.s.v@dsau.dp.ua)

Pogrebnyak Rodion – PhD, Associate Professor Department of Higher Mathematics, Physics and General Engineering Disciplines Dnipro State Agrarian and Economic University (Sergiy Yefremov str., 25, Dnipro, Ukraine, 49009, е-mail: pohrebniak.r.p@dsau.dp.ua)

Zdanevych Stepan – Lecturer Municipal institution «Lyceum № 22» (Serzhanta Konovalov str., 21, Kamianske, Dnipropetrovsk region, Ukraine, 51935, e-mail: zdanevichss@gmail.com)

Huridova Viktoriia – Senior Lecturer Department of Higher Mathematics, Physics and General Engineering Disciplines Dnipro State Agrarian and Economic University (Sergiy Yefremov str., 25, Dnipro, Ukraine, 49009, е-mail: huridova.v.o@dsau.dp.ua)

The introduction of trailed wide-grip cultivators and seeding complexes significantly increases the productivity of modern grain crop production technologies and is ensured by the use of tractors with increased effective power (up to 500 hp). Modern cultivators and seeding complexes are able to quickly transform from transport position to working position, have considerable mass and dimensions. In order to determine the nature and magnitude of the actual loads and stresses of the elements of the wide-grip cultivators Horsch FG 18.30, field tests were conducted on heavy chernozem soils in the Dnipropetrovsk region of Ukraine during the cultivation mode. The sign-alternating oscillatory nature of the lateral component of the cutting force on the shank was registered, the maximum value of which was 1.03 kN, the maximum short-term value of the main component of the cutting force was 4.3 kN, the average values varied within 1.86…2.35 kN. During field tests in different cultivation modes, the recorded traction force on the cultivator-tractor hitch showed a non-stationary nature and varied in the range of 87…253 kN. Based on the data of full-scale measurements of the supporting structure of the cultivator Horsch FG 18.30, an analysis of the obtained calculated stress-strain state data of the supporting structure elements was carried out, and their safety margins were determined. Experimentally determined loads acting on the elements of the cultivator frame are input data for developing a calculation model to perform an analysis of the stressed state of the structure. The directions for rational changes in the assortment and material of the tubular elements of the cultivator frame beams were established according to the criterion of overall reduction in metal consumption of the supporting structure while maintaining the required strength.

1. Zdanevych, S.V., & Pohrebniak, R.P. (2010). Eksperymentalne doslidzhennia ta modeliuvannia dynamiky ekipazhu z bezresornoiu nezalezhnoiu pidviskoiu kolis pry naizdi na pereshkodu. Pidiomno-transportna tekhnika (Hebezeuge und Fördermittel, 2, 81-86. [in Ukrainian].

2. Rybak, T.I., Popovychi, P.V., Dutka, A.B., & Tson, O.P. (2012). Otsinka faktychnoi mitsnosti ta resursu krytychnykh elementiv osnovnykh nesuchykh konstruktsii s.-h. mashyn. Visnyk Kharkivskoho natsionalnoho tekhnichnoho universytetu silskoho hospodarstva. Problemy nadiinosti mashyn ta zasobiv mekhanizatsii silskohospodarskoho vyrobnytstva, 128, 24-28. [in Ukrainian].

3. Sharhorodskyi, S.A., Rutkevych, V.S., & Yashchuk, Ye.V. (2022). Matematychne modeliuvannia hidropryvoda perevedennia shyrokozakhvatnoho silskohospodarskoho ahrehatu iz transportnoho polozhennia u roboche. Vibratsii v tekhnitsi ta tekhnolohiiakh, 3(106), 54-63. doi: 10.37128/2306-8744-2022-3-8. [in Ukrainian].

4. Alfyorov, О.I., Antoshenkov, R.V., & Yuryeva, G.P. (2018). Eksperymentalne doslidzhennia kolyvan robochykh orhaniv kultyvatora na pruzhnii stiitsi. Naukovyi visnyk Natsionalnoho universytetu bioresursiv i pryrodokorystuvannia Ukrainy. Seriia: tekhnika ta enerhetyka AP, 296, 129-132. doi: 10.31548/machenergy.2018.02.129-132. [in Ukrainian].

5. Alfyorov, A.I. (2021). Dynamichni kharakterystyky robochykh orhaniv kultyvatora pry intensyfikovanomu protsesi obrobitku gruntu. Inzheneriia pryrodokorystuvannia, 3(21), 73-81. doi: 10.5281/zenodo.7317344. [in Ukrainian].