سال انتشار: ۱۳۹۱
محل انتشار: هفتمین کنگره ملی مهندسی ماشین های کشاورزی و مکانیزاسیون
تعداد صفحات: ۵
Hamid Taghavifar – M.Sc. student of Mechanical Engineering of Farm Machinery, Urmia University
Aref Mardani – Assistant Professor of Mechanical Engineering of Farm Machinery Department, Urmia University
The increasing use of tractors and rising need for agricultural mechanization in order to obtain high farm efficiency obligates numerous passes of tractor in the farm and consequently causes enormous soil compaction beneath tractor wheels. Soil compaction has enormously attracted researchers’ attention toward soil-wheel interactions because it is a key factor in preventing plant growth. Amongst effective parameters of creating soil compaction, dynamic load on wheel requires to be investigated thoroughly and precisely using a soilbin and a wheel-tester. Three dynamic load values of 2, 2.5 and 3 kN were implied on wheel to evaluate the influence of these dynamic loads on creating soil compaction. The soilbin was filled with clay-loam soil. A load cell was used to measure dynamic loads on wheel and a data acquisitioning system was used to receive result data. As the wheel-tester was traversing in the length of soilbin, the signals were sent by load cell and then the signals were received by data acquisitioning system. A penetrometer was used to measure soil compaction after traversing the wheel-tester of wheel footprint. The result data proved that increase of dynamic load causes soil compaction to penetrate into deeper soil levels.