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A Method for Determining Stretching Patterns of a Group of Stems in Plant Materials

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Abstract

During operation, working bodies of agricultural machines interact with plants experiencing various deformations, including stretching of groups of stems. To design mechanisms of agricultural machines, it is necessary to know patterns of behavior of plant materials under deformation. The aim of this study is to develop a refined method for determining the patterns of changes in the force required for stretching a group of plant materials depending on their relative elongation and taking into account different shapes and areas of stem cross-sections. A refined method for determining the patterns of changes in the force required for stretching a group of parallel stems is given graphoanalytically, in which a polyline is traced. Dependences are obtained for determining the tensile strength of a layer of parallel and chaotically stacked stems taking into account the length of plants' interaction sections and the thickness and density of the layer, and conditions for stretching the layer are identified. The research results are intended for use in the computational and theoretical basis of engineering methods for designing agricultural machinery mechanisms taking into account specific properties of plant materials as deformable mechanical systems.

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Authors and Affiliations

  1. Russian Academy of Sciences, 119334, Moscow, Russia

    Yu. F. Lachuga

  2. Federal Research Center for Bast Crops, 170041, Tver, Russia

    M. M. Kovalev, G. A. Perov & A. V. Galkin

Authors
  1. Yu. F. Lachuga
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  2. M. M. Kovalev
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  3. G. A. Perov
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  4. A. V. Galkin
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Corresponding author

Correspondence to M. M. Kovalev.

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The authors declare that they have no conflict of interest. This article does not contain any studies involving animals or human participants performed by any of the authors.

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Translated by K. Lazarev

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Lachuga, Y.F., Kovalev, M.M., Perov, G.A. et al. A Method for Determining Stretching Patterns of a Group of Stems in Plant Materials. Russ. Agricult. Sci. 47, 182–187 (2021). https://doi.org/10.3103/S1068367421020129

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  • DOI: https://doi.org/10.3103/S1068367421020129

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