MODELING THE PROCESS OF REDUCING TREE STUMPS USING SELF-PROPELLED MACHINE BASED ON THE PARTICLE DYNAMICS METHOD-Reference-Cited by-同舟云学术

MODELING THE PROCESS OF REDUCING TREE STUMPS USING SELF-PROPELLED MACHINE BASED ON THE PARTICLE DYNAMICS METHOD

Published:2020-01-13 Issue:4 Volume:9 Page:151-161
ISSN:2222-7962
Container-title:Forestry Engineering Journal
language:en
Short-container-title:

Author:

Pryadkin Vladimir¹,Bartenev Ivan²,Posmetev Viktor²

Affiliation:

1. Voronezh State University of Forestry and Technologies

2. Voronezh State University of Forestry and Technologies named after G.F. Morozov

Abstract

The article presents an analysis of the tree dozer technologies. It is established that a separate method of grubbing out is most widespread due to the possibility of aggregation of various mounted and trailed tree dozer with wheeled and tracked tractors. Abroad, the most widespread method is simultaneous removal of the aboveground and underground parts of trees in the course of one technological operation. The main technical means of implementing direct stumping technology are self-propelled high-performance tree dozers of various capacities, and the process of tree stumping is carried out mainly with a vertically applied force. The purpose of the study was to develop a mathematical model of the process of tree stumping at a vertically applied effort based on the particle dynamics. The developed mathematical model enables to simulate soil and tree root system located in it, as well as the process of removing the tree root system, determine the vertical force applied to the tree trunk, at which feeding roots break and the main roots leave the soil. In the course of a numerical experiment, it has been found that when stumping garden trees with a diameter of 300 mm, the maximum vertical force reaches 74 kN. Due to the high physical adequacy and spatial resolution, the model enables to study the influence of the uprooting mechanism and the root system on the efficiency of stumping process.

Publisher

Voronezh State University of Forestry and Technologies named after G.F. Morozov

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