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Development of a Dynamometer to Measure All Forces and Moments Applied on Tillage Tools

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Abstract

A new triaxial dynamometer was designed, constructed and tested to measure and locate the position of all forces and moments on tillage implements, up to a maximum force of 10 kN and a maximum moment of 10 kN × m. The design concept of the facility was based on four frames attached to each other by load cells and tillage tool were attached on the inner frame. Calibration of the system showed the reliable and precise performance of the dynamometer in tracking the forces and moments. Additionally, the designed setup operated desirably under field conditions. Draft measurement was compared to those predicted by ASABE Standard D497.7 and was found to be in standard range. By using the new facility, it would be possible to study the relationship between forces and moments at the varying practical cases and design of tines, toolbars and tillage equipments in regard to the soil type and available tractor power will be facilitated.

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Abbreviations

F L :

Linear force (N)

F S :

Lateral force (N)

F V :

Vertical force (N)

M S :

Lateral bending moment (Nm)

L 1 :

Distance between load cell 1 and line across pivots

F LCi :

Force at load ith cell

M L :

Linear bending moment (Nm)

T Z :

Torsion moment (Nm)

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Acknowledgements

The authors express their appreciation to the support staff of the Department of agricultural Machinery at Urmia University special Hojjat Ghorbani for their contribution in field operations.

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Authors and Affiliations

  1. Department of Agricultural Machinery, Faculty of Agriculture, Urmia University, Urmia, Iran

    Nemat Nobakht & Ali Mohammad Nikbakht

  2. Department of Agricultural Machinery, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, P.O Box 165, Ardabil, Iran

    Mohammad Askari

  3. Department of Range Science, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran

    Zhila Ghorbani

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  1. Nemat Nobakht
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  4. Zhila Ghorbani
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Correspondence to Mohammad Askari.

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Nobakht, N., Askari, M., Nikbakht, A.M. et al. Development of a Dynamometer to Measure All Forces and Moments Applied on Tillage Tools. MAPAN 32, 311–319 (2017). https://doi.org/10.1007/s12647-017-0221-9

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  • DOI: https://doi.org/10.1007/s12647-017-0221-9

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