Measurement of the Stress State in the Lower Link of the Three-Point Hitch Mechanism
Само за регистроване кориснике
2018
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Agricultural machines and their implements are subjected to dynamic loads during farm operations. Depending on the type of operation (e.g. lifting or plowing), lower links of the three-point hitch mechanism are exposed to stresses caused by combination of bending moments and axial forces. In this paper we analyzed influence of the soil resistance during plowing in the lower link and the possibility of its failure. The stresses were measured using strain gauges at locations with uniform stress distribution in order to enable more reliable comparison with finite element analysis (FEA). Recorded stresses vs. time were used for identifying mean stresses and amplitudes for different plowing depth and different tractor speeds. Due to the geometry of the lower links and their joints in the three-point hitch mechanism, during plowing and transferring soil resistance, links are loaded not only by axial forces but also by bending moment in the horizontal plane. Under some assumptions, FEA provid...ed us to make relations between the measured stresses and the loads that caused them. Measured stresses show that links have significant safety margin relative to tractor installed power and soil resistance, which enables the possibility of their design optimization. Obtained results may also serve for further analyses of fatigue life prediction, measurement of the draft forces etc.
Кључне речи:
Three-point hitch mechanism / Stress state / Strain gauges / Lower link / Finite element analysisИзвор:
Experimental and Numerical Investigations in Materials Science and Engineering, 2018, 54, 112-121Издавач:
- Springer International Publishing Ag, Cham
Финансирање / пројекти:
- Одрживост и унапређење машинских система у енергетици и транспорту применом форензичког инжењерства, еко и робуст дизајна (RS-MESTD-Technological Development (TD or TR)-35006)
- Научно-технолошка подршка унапређењу безбедности специјалних друмских и шинских возила (RS-MESTD-Technological Development (TD or TR)-35045)
DOI: 10.1007/978-3-319-99620-2_9
ISSN: 2367-3370
WoS: 000495600600009
Scopus: 2-s2.0-85063232697
Колекције
Институција/група
Mašinski fakultetTY - CONF AU - Cerović, Vera AU - Milković, Dragan AU - Grbović, Aleksandar AU - Radulović, Saša AU - Tanasković, Jovan PY - 2018 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3001 AB - Agricultural machines and their implements are subjected to dynamic loads during farm operations. Depending on the type of operation (e.g. lifting or plowing), lower links of the three-point hitch mechanism are exposed to stresses caused by combination of bending moments and axial forces. In this paper we analyzed influence of the soil resistance during plowing in the lower link and the possibility of its failure. The stresses were measured using strain gauges at locations with uniform stress distribution in order to enable more reliable comparison with finite element analysis (FEA). Recorded stresses vs. time were used for identifying mean stresses and amplitudes for different plowing depth and different tractor speeds. Due to the geometry of the lower links and their joints in the three-point hitch mechanism, during plowing and transferring soil resistance, links are loaded not only by axial forces but also by bending moment in the horizontal plane. Under some assumptions, FEA provided us to make relations between the measured stresses and the loads that caused them. Measured stresses show that links have significant safety margin relative to tractor installed power and soil resistance, which enables the possibility of their design optimization. Obtained results may also serve for further analyses of fatigue life prediction, measurement of the draft forces etc. PB - Springer International Publishing Ag, Cham C3 - Experimental and Numerical Investigations in Materials Science and Engineering T1 - Measurement of the Stress State in the Lower Link of the Three-Point Hitch Mechanism EP - 121 SP - 112 VL - 54 DO - 10.1007/978-3-319-99620-2_9 ER -
@conference{ author = "Cerović, Vera and Milković, Dragan and Grbović, Aleksandar and Radulović, Saša and Tanasković, Jovan", year = "2018", abstract = "Agricultural machines and their implements are subjected to dynamic loads during farm operations. Depending on the type of operation (e.g. lifting or plowing), lower links of the three-point hitch mechanism are exposed to stresses caused by combination of bending moments and axial forces. In this paper we analyzed influence of the soil resistance during plowing in the lower link and the possibility of its failure. The stresses were measured using strain gauges at locations with uniform stress distribution in order to enable more reliable comparison with finite element analysis (FEA). Recorded stresses vs. time were used for identifying mean stresses and amplitudes for different plowing depth and different tractor speeds. Due to the geometry of the lower links and their joints in the three-point hitch mechanism, during plowing and transferring soil resistance, links are loaded not only by axial forces but also by bending moment in the horizontal plane. Under some assumptions, FEA provided us to make relations between the measured stresses and the loads that caused them. Measured stresses show that links have significant safety margin relative to tractor installed power and soil resistance, which enables the possibility of their design optimization. Obtained results may also serve for further analyses of fatigue life prediction, measurement of the draft forces etc.", publisher = "Springer International Publishing Ag, Cham", journal = "Experimental and Numerical Investigations in Materials Science and Engineering", title = "Measurement of the Stress State in the Lower Link of the Three-Point Hitch Mechanism", pages = "121-112", volume = "54", doi = "10.1007/978-3-319-99620-2_9" }
Cerović, V., Milković, D., Grbović, A., Radulović, S.,& Tanasković, J.. (2018). Measurement of the Stress State in the Lower Link of the Three-Point Hitch Mechanism. in Experimental and Numerical Investigations in Materials Science and Engineering Springer International Publishing Ag, Cham., 54, 112-121. https://doi.org/10.1007/978-3-319-99620-2_9
Cerović V, Milković D, Grbović A, Radulović S, Tanasković J. Measurement of the Stress State in the Lower Link of the Three-Point Hitch Mechanism. in Experimental and Numerical Investigations in Materials Science and Engineering. 2018;54:112-121. doi:10.1007/978-3-319-99620-2_9 .
Cerović, Vera, Milković, Dragan, Grbović, Aleksandar, Radulović, Saša, Tanasković, Jovan, "Measurement of the Stress State in the Lower Link of the Three-Point Hitch Mechanism" in Experimental and Numerical Investigations in Materials Science and Engineering, 54 (2018):112-121, https://doi.org/10.1007/978-3-319-99620-2_9 . .