Measurement of the Stress State in the Lower Link of the Three-Point Hitch Mechanism

Cerović, Vera B.; Milković, Dragan; Grbović, Aleksandar; Radulović, Saša; Tanasković, Jovan

doi:10.1007/978-3-319-99620-2_9

Cited by 1 publication

(2 citation statements)

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“…Force was measured using custom-made force transducer based on the strain measurements using strain gauges and calibration of the developed transducer. Used strain gauges, of commercial type 3/120KY31, manufactured by Hottinger Baldwin Messtechnik, Germany, were mounted as it is explained in Cerović et al (2018), Figure 2c. Measuring resistance of these gauges are 120 1%, measuring grid length 3 mm, code number for the temperature response for ferritic steel = 10.810 -6 K -1 , maximum bridge excitation voltage 8 V, transverse sensitivity 0.1%, gage factor 2.001%.…”

Section: Methodsmentioning

confidence: 99%

“…After analysing the calibration data and findings of Cerović et al (2018), it was noticed that due not only the pure axial load of the lower link but also the bending moment around the vertical axis, it is better to use (mount) only longitudinal strain gauge. Due to loading direction which does not coincide ideally with the axis, transversely placed strain gauge impose an error in establishing a connection between loading and relative deformations of the strain gauge.…”

Section: Methodsmentioning

confidence: 99%

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2D analytical model for evaluation of the forces in the three point hitch mechanism

Cerović

Milković

Petrović³

et al. 2020

Tarım Bilimleri Dergisi

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Large investments, research efforts and time have been allocated till nowadays for innovation of agricultural tractors and machinery, with the primary aim to increase their productivity, reliability, durability, as well as the environmentally friendly, safe and easy usage. Following this general trend, present work is focused on theoretical analysis of the forces acting on the links of the three-point hitch mechanism. The simulation algorithm and computer code have been developed for calculation of draft forces by two methods (following ASAE D497.4 standard and Goryachkin approach), depending on the three point linkage geometry and mouldboard technical characteristics, and calculation of forces acting on lower and upper links of three-point hitch mechanism. Calculated forces values, based on ASAE draft, exposes smaller differences compared to experimental values, while for the Goryachkin method improvement is possible by entering experimental values for soil resistance coefficient k and coefficient of dynamic resistance ε, as we did in this study performing measurements on the aggregate comprehending tractor IMT 539 (IMT Belgrade, Serbia) and two furrow moldboard plough PTO 2.25 (OLT, Osijek, Croatia).

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%