Relationship between different parameters of an inclined subsoiler

Subsoilers are agricultural implements used to break the hardpans below the tillage depth. Minimizing the subsoiler weight without compromising the subsoiler safety is one of the leading design objectives. The thickness of shank, length of curve and width of shank are critical parameters in the design process. Maximizing the structural safety and minimizing the weight are achieved by determining the significance of the geometrical parameters. This paper deals with the correlation between an inclined subsoiler’s input and output parameters. The parameters correlation was carried out to determine the extent of relationship between different parameters and the sensitivities of the input parameters with respect to the output parameters. The parameters correlation tool of ANSYS Workbench was used for the analysis. The results of the parameters correlation indicated that thickness of shank and width of shank had significant effects on the output parameters while the effect of length of curve of the inclined subsoiler was not significant. Thickness of shank had the highest relevance with the inclined subsoiler mass having a correlation value of 0.8849 and an R2 contribution of 0.7554. Width of shank had the highest relevance with maximum total deformation with a correlation value of -0.7899 and an R2 contribution of 0.6133. Inclined subsoiler mass, safety factor and inclined subsoiler volume exhibited increasing trends both linearly and quadratically with the increase in thickness and width of shank. On the other han, total deformation equivalent and maximum principal stress exhibited decreasing trends.