Accuracy of Mounted Implement Draft Prediction Using Strain Gages Mounted Directly on Three-Point Linkage System

Upadhyaya, Shrini K.; Kemble, L. J.; Collins, N. E.; Camargo, Fernando

doi:10.13031/2013.32199

Transactions of the ASAE

1985

DOI: 10.13031/2013.32199

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Accuracy of Mounted Implement Draft Prediction Using Strain Gages Mounted Directly on Three-Point Linkage System

Shrini K. Upadhyaya¹,

L. J. Kemble²,

N. E. Collins³

et al.

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Cited by 12 publications

(4 citation statements)

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“…This required simultaneous recording of at least three forces which involved very complicated instrumentation. This method was used by many researchers (Reece 1961;Morling 1963;Scholtz 1964;Luth et al 1978;Upadhyaya et al 1985). Alternatively, the sensors can also be attached on the frame or frames between the implement and the tractor linkage.…”

mentioning

confidence: 99%

A novel three-point hitch dynamometer to measure the draft requirement of mounted implements

Askari¹,

Komarizade²,

Nikbakht³

et al. 2011

Res. Agric. Eng.

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Askari M., Komarizade M.H., Nikbakht A.M., Nobakht N., Teimourlou R.F., 2011. A novel three-point hitch dynamometer to measure the draft requirement of mounted implements. Res. Agr. Eng., 57: 128-136.An adjustable three-point hitch dynamometer with a draft capacity of 50 kN was developed to measure forces on the tractor and mounted implements. The design concept of the dynamometer was based on two linkage frames mounted between tractor links and the implement. The force sensing elements were comprised of a loadcell that was installed between the frames. The system provides variable width and height of the dynamometer links to satisfy a wide range of implement dimensions. All mounted tillage implements at categories II and III such as plows, cultivators and harrows were able to be tested by this dynamometer excluding mounted implements powered by power take-off (PTO). The dynamometer was calibrated and several field tests were conducted to measure the force required to pull a moldboard plow in a clay loam soil. The calibration showed a high degree of linearity between the draft requirements and the dynamometer outputs. Field tests showed that it was able to function effectively as intended without any mechanical problems.

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mentioning

confidence: 99%

A novel three-point hitch dynamometer to measure the draft requirement of mounted implements

Askari¹,

Komarizade²,

Nikbakht³

et al. 2011

Res. Agric. Eng.

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show abstract

“…The tractor built-in sensor configuration has no additional frame between the tractor and the implement but has force-sensing transducers incorporated into the tractor linkage system [1][2][3][4][5] . These dynamometers do not interface with the tractor's PTO shaft and present no problems to the tractor and implement geometry.…”

mentioning

confidence: 99%

Design and Development of A Three-Point Auto Hitch Dynamometer for An Agricultural Tractor

Kheiralla

Yahya

Zohadie

et al. 2017

AJSTD

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This paper describes the design, development and calibration of a three-point auto hitch dynamometer for measuring the horizontal and vertical forces that existed at the three-point hitch of an agricultural tractor. The design concept of the dynamometer was based on an instrumented inverted U frame assembly that was mounted between tractor links and implement. The design incorporates for both lower point hitch spread and mast height adjustments, and quick hitch capability in accordance with category 1 and II three-point hitch system. The force sensing elements were comprised of three steel extended octagonal ring transducers that were located between the inverted U frame and hook brackets. Electrical resistance strain gauges were mounted on the extended octagonal ring transducer at strain angle nodes to independently monitor strains that were proportional to the horizontal and vertical forces at the ring center. Each transducer was designed for maximum horizontal and vertical forces of 25 kN and 10 kN at measurement mean sensitivities of 25.19 µStrain/kN and 25.60 µStrain/kN, respectively. However, the complete dynamometer has been designed to measure the maximum resultant horizontal and vertical forces of 50 kN and 20 kN, respectively. Field demonstration tests on the dynamometer and data acquisition system showed that they were able to function effectively as intended. The data acquisition system was able to successfully scan and record the dynamometer signals as programmed. This dynamometer was part of the complete instrumentation system to be developed onboard a Massey Ferguson 3060 tractor for the generation of a comprehensive database on the power and energy requirements of the tractor and its working implement in the field.

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“…Results of the first experiment with the determination of effects of the ploughing operation on soil compaction were presented in a paper published by Mišun and Bauer (1992). Problems associated with force effects of ploughs on tractors ploughs kinematics were studied by many authors (Kazzaz, Grečenko 1968;Upadhyaya, Kemble 1985;Sloboda et al 1997;Mouazen et al 2009). Also other factors affecting drawbar characteristics such as tire inflation and others were deeply studied (Novák et al 2009;Šmerda, Čupera 2010).…”

mentioning

confidence: 99%

“…Concerning tractive efficiency, there is a concern to reach the maximum values of this factor but, regarding effects of an undesirable compaction of soil (and subsoil), the adhesion load of driving wheels is in conflict with this requirement above all in case of ploughing aggregates, with right wheels moving in the furrow. As far as these ploughing aggregates are concerned, many authors refer to the compaction of subsoil due to the movement of tractor wheels in the furrow (Upadhyaya, Kemble 1985;Renius 1987). The analysis of forces influencing the threepoint linkage of a ploughing tractor was performed due to the fact that, as compared with tractor tractive tests, the load of a ploughing tractor shows characteristic differences.…”

mentioning

confidence: 99%

Analysis of force effects measured in the tractor three-point linkage

Čupera¹,

Bauer²,

Severa³

et al. 2011

Res. Agric. Eng.

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AbstractČupera J., Bauer F., Severa L., Tatíček M., 2011. Analysis of force effects measured in the tractor three-point linkage. Res. Agr. Eng., 57: 79-87.The work is focused on description of tractor individual axels and wheels loading during ploughing. A combination of tractor inclination with force and momentum effects need not always result in marked differences in the load of driving wheels. This paper documents the relationship existing between forces working in the upper drawbar F h of the threepoint linkage and the momentum M Tx . It was also demonstrated that with the increasing value of M Tx the difference between loads of both rear wheels reduces. The described algorithm enables to evaluate output parameters of ploughing aggregates for different variants of forces changing in the tractor three-point linkage due to various ways of suspension and adjustment of individual plough types. When using data recorded in the course of ploughing operations it is possible to demonstrate the effect of plough adjustment/attachment on the efficiency of the whole ploughing aggregate.

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Accuracy of Mounted Implement Draft Prediction Using Strain Gages Mounted Directly on Three-Point Linkage System

Cited by 12 publications

References 0 publications

A novel three-point hitch dynamometer to measure the draft requirement of mounted implements

A novel three-point hitch dynamometer to measure the draft requirement of mounted implements

Design and Development of A Three-Point Auto Hitch Dynamometer for An Agricultural Tractor

Analysis of force effects measured in the tractor three-point linkage

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