Effective Positioning in Cutting Area of a Harvester Using Computer Modelling
Journal Title: Lesnoy Zhurnal (Russian Forestry Journal) - Year 2023, Vol 4, Issue 4
Abstract
An improvement of methods and models for preliminary estimation of the performance of harvesters in timber production intends to support better justification of the use of certain harvester types and technologies for specific natural and production conditions. It is possible to increase the accuracy of calculation models with a more complete and realistic description of the production environment and operational processes. The article presents a modelling of the harvesterâs movements across cutting areas for selecting a position with the highest number of accessible trees. The investigational process involved the creation of an algorithm along with a simulation model and the statistical processing of the results. The problem-solving process required consideration of the treeâs distribution within the cutting region. The data arrays, which were necessary for efficiency evaluation in the simulation model and its software implementation, were the following: the distance between the working stands of the machine with the maximum number of available trees, the time of cyclic processing, and the number of trees in the area. The results of the statistical analysis of the data are presented with justification from the theoretical laws of probability distribution. The choice of machine working stands, which considered the arrangement of the trees, was estimated using the productivity per hour index. The index was calculated with a constant distance parameter that is equal to the difference between the maximum and the minimum manipulatorâs movement, and it was also calculated for a stand with a maximum number of accessible trees. The calculation function for the index involves random variables that characterize the working conditions of the stand. The index itself is conceded as a random variable. The values for it were found by statistical data processing. A comparison of the values determined a high probability of a significant increase in the productivity of the harvester. At the stand with the maximum number of trees, it is estimated at around 8 % with a standard deviation of 0.199. For citation: Makarenko A.V. Effective Positioning in Cutting Area of a Harvester Using Computer Modelling. Lesnoy Zhurnal = Russian Forestry Journal, 2023, no. 4, pp. 120â135. (In Russ.). https://doi.org/10.37482/0536-1036-2023-4-120-135
Authors and Affiliations
Andrey V. Makarenko
Keywords
Related Articles
- EP ID EP719875
- DOI 10.37482/0536-1036-2023-4-120-135
- Views 83
- Downloads 0
Growth and State of Mixed Stands of Forest Plantations of the Kamennaya Steppe
By now, a vast amount of experimental material has been accumulated in the field of protective afforestation of the Central Chernozem Region of Russia, which allows estimating the stability and longevity of various trees...
Dynamics of Biometric and Carbon Indicators of Pine Plantations Growing on the Abandoned Farmlands of the Krasnoyarsk Forest-Steppe
Today, the overgrowth of woody and shrubby vegetation on former agricultural lands is a serious problem. The aim of this research has been to investigate age-related changes in the forest inventory indicators of forest s...
Forest Sustainability of Ecotopes of the Volga-Akhtuba Floodplain when Cultivating Pine Plantations
In the south of European Russia, the largest sand massifs are found in the zone of dry steppes and semi-deserts. Effective utilization of such lands requires creation of protective forest planting of drought-resistant co...
Modeling the Forest Stand Growth Dynamics Based on the Thermodynamic Approach
The forest ecosystem is a common example of the functioning of open thermodynamic systems. The work analyzes the change in the entropy of an open thermodynamic system where the following processes can be realized: absorp...
Stem Volume and Quality of Hybrid and Common Aspen in the Clonal Archive
Hybrid aspen as a fast growing tree species with short rotation is of interest for the creation of plantation forest crops in intensive forest management. Hybrid aspen wood is used to produce paper, lumber, and plywood,...