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

Askari, Mohammad Sadegh; Komarizade, M. H.; Nikbakht, Ali; Nobakht, N.; Teimourlou, Rahman Farrokhi

doi:10.17221/16/2011-rae

Cited by 24 publications

(21 citation statements)

References 13 publications

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“…This behavior of draft force variations was consistent with the report by Sharifat and Kushwaha [30]. Also, by increasing the depth at the same speed, an increase in the draft force was observed in all treatments and for all implements, which was consistent with findings of Kirisci et al [12], Godwin et al [13], and Askari et al [15].…”

Section: Resultssupporting

confidence: 92%

Measuring and Comparing Forces Acting on Moldboard Plow and Para-Plow with Wing to Replace Moldboard Plow with Para-Plow for Tillage and Modeling It Using Adaptive Neuro-Fuzzy Interface System (ANFIS)

et al. 2020

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The objective of this study was to measure the draft, vertical, and lateral forces acting on the moldboard plow, para-plow without a wing, para-plow with forward-bent wing, and para-plow with a backward-bent wing at three working depths and three forward speeds in clay loam soil to investigate the use of a suitable para-plow instead of the moldboard plow. Also, modeling the draft, vertical, and lateral forces acting on the implements using Adaptive Neuro-Fuzzy Interface System (ANFIS) was another objective of this research. To measure the draft, vertical, and lateral forces, a three-point hitch dynamometer was used. The results showed that, with the increment of the forward speed and working depth, the draft force required by the used implements increased. This increase was also true for vertical and lateral forces acting on the implements. Modeling of the draft, vertical, and lateral forces acting on the implements was performed using the effective parameters of the implements, working depth, and forward traveling speed using the (ANFIS) fuzzy neural system model. The root mean square error (RMSE) for the draft, vertical, and lateral forces for the above models were obtained equal to 0.121, 0.014, and 0.016, respectively.

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Section: Resultssupporting

confidence: 92%

Measuring and Comparing Forces Acting on Moldboard Plow and Para-Plow with Wing to Replace Moldboard Plow with Para-Plow for Tillage and Modeling It Using Adaptive Neuro-Fuzzy Interface System (ANFIS)

et al. 2020

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“…Maximum draft force that was measured by this dynamometer was 3000 kg (30 kN). The details concerning the design and other aspects of the facility can be found in Askari et al (2011). Fuel consumption was measured by using a secondary tank of 8 l capacity with a level marked tube and bulb with volume 138.6 cm 3 .…”

Section: General Setup Of the Instrumentation Systemmentioning

confidence: 99%

Performance of tractor and tillage implements in clay soil

Ranjbarian

Askari

Jannatkhah

2017

Journal of the Saudi Society of Agricultural Sciences

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A mobile instrumentation system was developed and mounted on an MF 285 tractor to measure the performance parameters of the tractor and attached implements. The system measures implement draft, fuel consumption, real forward velocity, tillage depth and engine speed. Other parameters such as wheel slippage, drawbar power and traction efficiency would be calculated by ASABE standard. Overall energy efficiency for the tractor-implement system was calculated, too. Three implements included of moldboard plow, disk plow and chisel plow at four forward velocities (1.5, 2.3, 3 and 4 km/h) in 23 cm depth and 1500 rpm engine speed was examined. Analysis of variance (ANOVA) of resulted data revealed that increase of forward velocity results in increase of implement draft, wheel slippage, drawbar power and overall energy efficiency but results in decrease of traction efficiency. Furthermore, fuel consumption decreased by increase of velocity from 1.5 km/h to 3 km/h but increased by increase of velocity from 3 km/h to 4 km/h. Moreover, it was observed that draft requirement for implements in tests ranged from 8.2 kN for the disk plow to 13 kN for the chisel plow and fuel consumption ranged from 10.72 L/ha for the chisel plow to 26.5 L/ha for the moldboard plow. The ranges in mentioned parameters indicate that energy saving can be readily done by selecting energy-efficient implements and by proper matching of the tractor size and operating parameters to the implements. ª 2015 The Authors. Production and hosting by Elsevier B.V. on behalf of King Saud University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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“…The dynamometer was calibrated in the field based on the method presented by Askari et al (2011). The used data acquisition system consisted of commercial strain gauges installed on two extended octagonal rings (EOR), a data logger and a laptop.…”

Section: Methodsmentioning

confidence: 99%

“…The prediction and availability of draft requirement data for tillage implements is an important factor in selecting suitable tractor and tillage implement for a particular farming situation (Alimardani et al 2008). Therefore, the measurement of implement draft and developing draft prediction equations has received most of the attention in field tests (Kheiralla et al 2004;Manuwa, Ademosun 2007;Manuwa 2009;Abo Al-Kheer et al 2011;Askari et al 2011;Moeenifar et al 2014;Ramadhan 2014;Ranjbarian et al 2015). The draft requirement of any tillage implement was found to be a function of soil properties, tool geometry, working depth, travel speed, and width of the implement (Glancey et al 1996).…”

mentioning

confidence: 99%

The effect of tine, wing, operating depth and speed on the draft requirement of subsoil tillage tines

Askari¹,

Shahgholi²,

Abbaspour‐Gilandeh³

2017

Res. Agric. Eng.

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In this study, the effect of tine type, adding wing, operating depth and forward speed on the draft requirement of subsoil tillage tines was investigated in clay loam soil. Three subsoil tillage tines (subsoiler, bentleg and paraplow), four levels of forward speed (1.8, 2.3, 2.9 and 3.5 km/h), three levels of depth (30, 40 and 50 cm) and winged and no-wing tines were examined with the exception of bentleg as it would not be winged. It was revealed that draft of the tines is less affected by forward speed but is much affected by tine type, depth and wing. It was observed that an increase of speed and depth plus adding wing results in an increase of draft in all tines. Additionally, it was found that in all depths and speeds, subsoiler required more draft than paraplow and paraplow required more draft than bentleg. Multiple regression models including the studied parameters were developed to predict the draft requirements for each tine with high accuracy.

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

Cited by 24 publications

References 13 publications

Measuring and Comparing Forces Acting on Moldboard Plow and Para-Plow with Wing to Replace Moldboard Plow with Para-Plow for Tillage and Modeling It Using Adaptive Neuro-Fuzzy Interface System (ANFIS)

Measuring and Comparing Forces Acting on Moldboard Plow and Para-Plow with Wing to Replace Moldboard Plow with Para-Plow for Tillage and Modeling It Using Adaptive Neuro-Fuzzy Interface System (ANFIS)

Performance of tractor and tillage implements in clay soil

The effect of tine, wing, operating depth and speed on the draft requirement of subsoil tillage tines

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