نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجوی دکتری، گروه مهندسی مکانیک بیوسیستم، دانشکده کشاورزی، دانشگاه ارومیه، ارومیه، ایران
2 دانشیار، گروه مهندسی مکانیک بیوسیستم، دانشکده کشاورزی، دانشگاه ارومیه، ارومیه، ایران.
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
ABSTRACT: The soil-tool interaction is still considered one of the most complicated phenomenons which are affected by the mechanical behavior of the soil. The basic problem in this field is the determination of the soil mechanical properties. Also, because the soil environment is heterogeneous and has inhomogeneous properties, theoretical analysis of soil parameters is difficult. One of the most popular methods for describing soil deformation is the Bekker model, and is now widely used. It is necessary that soil mechanical parameters (kc، kφ and n) be measured to predict soil deformation behavior based on the Bekker model consideration. For this purpose, a setup was designed and constructed that apply the load required at different velocities vertically on the soil, and also can measure the amount of soil deformation simultaneously. The system was installed on a carrier in a soil bin comprising loamy clay soil and its operation was evaluated by pressure plates with three replications. The results of setup operation showed a satisfactory performance for the set up. The advantages of the system are the ability to replace various probes and the possibility of providing different rates of penetration velocities in the soil, so this setup provides various tests of tools and wheels.
کلیدواژه‌ها [English]
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