| Modeling the effect of different frequency on soil and oscillatory tine interaction performance using Discrete Element Method |
| Paper ID : 1075-NICAME1402 |
| Authors: |
|
Naser Kanyawi *1, gholamhosein shahgoli2, aref mardani karani3 1PhD Student, Department of Mechanical Engineering of Biosystems, Faculty of Agriculture, Urmia University, Urmia, Iran 2Professor of Department of Mechanical Engineering of Biosystems, Faculty of Agriculture, Mohaghegh Ardebili University, Ardebil, Iran. 3Department of bio system mechanical engineering, School of agriculture, Urmia university, Urmia, Iran |
| Abstract: |
| Interaction between soil and machine is essential challenge for researchers, developers, designers and manufacturers of agricultural machineries. Modeling of tillage equipment is an important Engineering work. However, interaction modeling is a complex process due to three-dimensional changes in soil, nonlinear soil behavior phenomenon and soil flow quality in connection area between the soil and tool and the dynamic effects of equipments. The purpose of this study is to develop a three-dimensional model of a vibrating subsoiler using discrete element method, simulation frequency and oscillation angle on the performance of vibration subsoiler and determining different parameters affecting the simulation results. The information from model simulation will be useful for the design and optimization of vibrating subsoiler. For modeling soil mass as a granular material, the computer program PFC3D. Blade was moved with angular and transition speed in the positive x-axis direction. For non-vibrating blade only included transition speed and for vibration blade in addition to transition speed, angular velocity was also defined. Working depth was 38 cm and blade speed of 0.89 meters per second was defined. To evaluate the effect of frequency on subsoiler performance, different frequencies of 1.94, 3.3, 4.9, 6 and 8.8 Hz at amplitude of ± 69 mm and oscillation angle of 27 degree were simulated. In all vibration tests in comparison with non-vibrating, with increasing frequency rate of boundary work, kinetic energy and friction work increased, but with increasing frequency bonding energy showed a decreasing trend. |
| Keywords: |
| Vibration Frequency, Discrete Element Method, Oscillatory subsoiler, Numerical Simulation |
| Status : Paper Accepted (Poster Presentation) |
