<abstract xmlns="http://www.w3.org/1999/xhtml">The paper presents research results on the effect of cutting depth and speed on the resultant force tilt angle and location of its application point on a flexible tine ended with a cultivator point. The studies were carried out in field conditions in sandy clay with the gravimetric moisture of 11.2% and volumetric density of 1470 kg·m−3. Tines whose flexibility coefficient was 0.0061; 0.0711; 0.0953 and 0.1406 m·kN−1 were used. It was found out that that the resultant force tilt angle raises at the increase of the cutting speed and drops at the increase of depth but this angle and its gradient at the increase of the cutting depth grow along with the decrease of the flexibility coefficient of tines. The increase of the cutting speed and depth causes the decrease of both the distance of the resultant force application point on the tool from the bottom of a furrow and a proportion of this parameter to the cutting depth. The courses of the distance of the resultant force application point on the tool from the bottom of a furrow and courses of proportion of this parameter to the cutting depth as the function of cutting do not differ significantly for tines with higher flexibility coefficients while for the most rigid tine values of these parameters and their gradients are higher. All obtained courses of the analysed values as a function of depth and cutting speed were described with regression equations.</abstract>

The paper presents research results on the effect of cutting depth and speed on the resultant force tilt angle and location of its application point on a flexible tine ended with a cultivator point. The studies were carried out in field conditions in sandy clay with the gravimetric moisture of 11.2% and volumetric density of 1470 kg·m−3. Tines whose flexibility coefficient was 0.0061; 0.0711; 0.0953 and 0.1406 m·kN−1 were used. It was found out that that the resultant force tilt angle raises at the increase of the cutting speed and drops at the increase of depth but this angle and its gradient at the increase of the cutting depth grow along with the decrease of the flexibility coefficient of tines. The increase of the cutting speed and depth causes the decrease of both the distance of the resultant force application point on the tool from the bottom of a furrow and a proportion of this parameter to the cutting depth. The courses of the distance of the resultant force application point on the tool from the bottom of a furrow and courses of proportion of this parameter to the cutting depth as the function of cutting do not differ significantly for tines with higher flexibility coefficients while for the most rigid tine values of these parameters and their gradients are higher. All obtained courses of the analysed values as a function of depth and cutting speed were described with regression equations.

Effect of Cutting Speed and Depth on the Course of Resultant Force Acting on a Cultivator Tine

Institute of Agricultural Engineering, Wroclaw University of Environmental and Life Sciences

Institute of Soil Science and Plant Cultivation in Pulawy

Agricultural Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The paper presents research results on the effect of cutting depth and speed on the resultant force tilt angle and location of its application point on a...

Effect of Cutting Speed and Depth on the Course of Resultant Force Acting on a Cultivator Tine

Published Online: Jun 18, 2016

Page range: 127 - 136

Received: Aug 01, 2015

Accepted: Oct 01, 2015

DOI: https://doi.org/10.1515/agriceng-2016-0013

Keywords
soil, spring tine of a cultivator, resultant force

© 2016 Zygmunt Owsiak et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Effect of Cutting Speed and Depth on the Course of Resultant Force Acting on a Cultivator Tine

Published Online: Jun 18, 2016

Page range: 127 - 136

Received: Aug 01, 2015

Accepted: Oct 01, 2015

DOI: https://doi.org/10.1515/agriceng-2016-0013

Keywordssoil, spring tine of a cultivator, resultant force

© 2016 Zygmunt Owsiak et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
soil, spring tine of a cultivator, resultant force