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The existing soil cultivators have a number of shortcomings. The authors suggest calculation for elements of the system of deformers in soil cultivators represented as plates with kinked curves. The paper explores a possibility of lengthening of horizontal elements of the system of deformers in rack of chizel type deep tiller without losses in its strength and without any significant changes in its thickness. The initial task is to calculate strained-deformed state of isotropic plates with kinked profile, clamped medial edges, symmetrically positioned on the vertical rack, inclined towards the vertical axis, having the same strength and uniform cross-section along the whole length (volumetric task). Numerical studies show zones that could possibly bear similar types of characteristic damages providing a possibility to design a kinked curve plate with optimal thickness, fracture angle and tilt angle. It is also found that the most dangerous feature is the decrease in the actual thickness of plate of more than 1/3 of computed thickness, thus leading to breakdown of a separate piece of the detail. Keywords— calculation of strength, deep tiller, system of deformers, stress, strain, bending, kinked curve plate, clamped edges, geometric characteristics

STRENGTH ANALYSIS OF KINKED CURVE PLATE USED AS ELEMENT OF SYSTEM OF DEFORMERS IN SOIL CULTIVATORS