Abstract
The three-dimensional model of a powered single acting disc harrow was created in SolidWorks 2013 and then the stress analysis was carried out using Finite Element Analysis (FEA) well before development of the designed tillage machinery to obtain optimum dimensions of different parts and to analyze the maximum stress and deformation in each component of the system. Theoretical calculations were done for different components, and resulting values were used to apply force, moment and boundary constraints on designed 3D model. Designed central gearbox, side gear assembly, gang shaft, the shaft between U-joint and upper side gear and main frame were validated by doing static structural analysis in ANSYS R15.0 workbench software. The developed implement was rigorously field tested and operated successfully up to the depth of 14 cm and forward speed of 7 km h-1 in sandy clay loam soil at an average moisture content of 12±0.75%(db). The field capacity, field efficiency and fuel consumption were found to be 0.37 to 0.57 ha h-1, 71.23% to 81.35% and 4.95 to 6.42 l h-1, respectively during first pass when operated at forward speeds of 3.69 to 6.55 km h-1 and at an average operating depth of 12 cm. FEM enables to optimize and simulate the complex agricultural machinery and to investigate the stresses and deformations induced in the parts well before product development to avoid failure in the later phase of field evaluation.
Highlights
Agricultural machinery are often encountered with sudden jerks and forces due to the harsh field conditions during tillage operation
Based on the results obtained in this study, the following specific conclusions can be drawn: 1. The three-dimensional model of a single-acting powered disc harrow (PDH) was successfully created in SolidWorks 2013, and optimum part dimensions were achieved by doing FE analysis in ANSYS R15.0 workbench software
finite element method (FEM) enables to optimize and simulate the complex agricultural machinery and to investigate the stresses and deformations induced in the parts well before product development to avoid failure in the later phase 6. of field evaluation
Summary
The objective of this study is to design and develop a powered single acting disc harrow with the help of computer-aided software’s: SolidWorks 2013 and ANSYS R15.0 for three-dimensional solid modelling and FE analysis of the optimized model, respectively to avoid any failure situations during the product development and field testing phase
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