Method of Calculating the Throwing Angle of Fertilizers and Seeds by a Centrifugal Apparatus With Blades Displaced From the Radius as a Function of Random Coordinates of the Feed Point

Chernovolov, V.A.; Khizhnyak, Vladimir Ivanovich; Nesmiyan, Andrey Yurievich; Kravchenko, Lyudmila; Lukhanin, Vladimir

doi:10.55618/20756704_2022_15_2_17-28

Cited by 1 publication

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“…The uniformity of fertiliser spreading by centrifugal devices depends on the correct adjustment of the numerical characteristics of the throwing angle: the mathematical expectation and its mean square deviation [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

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Constant angle line of distributing seeds and fertilisers by a horizontal centrifugal machine

Lukhanin,

Khizhnyak,

Psiukalo

et al. 2024

BIO Web Conf.

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The article presents the results of research on the distribution of mineral fertilisers and seeds by centrifugal spreaders on the field surface. A uniform distribution of seeds and mineral fertilisers by centrifugal spreaders depends on a variation of such parameters as mathematical expectation of a throwing angle and its standard deviation. The purpose of the research presented in the article is to check the reliability of the results of calculating the throwing angle of a centrifugal spreader by different methods in the Mathcad programme. The article considers the equation of particle motion on the blade of a centrifugal disc in order to determine the throwing angle of particles after coming off the blade. On the basis of this equation in the Mathcad programme, calculations of the throwing angle of the centrifugal distributor are made in three ways. The first two methods of calculation involve the use of the simplified formula of M.G. Doganovsky and V.V. Ryadnykh, obtained by solving the differential equation of particle motion along the blades of the centrifugal disc by discarding the exponent with a negative exponent. The third method of calculation is performed without simplifications and is taken by us as a reference. The results of comparative analysis of the used methods of calculation are given and the assumption about the violation of symmetry of the sieving sector with the increase in the seeding rate is put forward.

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Section: Introductionmentioning

confidence: 99%

“…Coordinate farming involves the use of a global positioning system to determine the coordinates of the field site and calculate the fertiliser application rate using an agrochemical map of the field and data on the planned yield [3]. The application rate is controlled by an onboard computer.…”

Section: Introductionmentioning

confidence: 99%