Optimization of a forest harvesting set based on the Queueing Theory: Case study from Karelia

Forestry Journal Pub Date : 2015-12-01 DOI:10.1515/FORJ-2015-0029

I. Shegelman, P. Budnik, E. Morozov

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引用次数: 7

Abstract

Abstract The modern technological process of timber harvesting is a complex system both technically and organizationally. Nowadays, the study of such systems and improvement of their efficiency is impossible without the use of mathematical modeling methods. The paper presents the methodology for the optimization of logging operations based on the queueing theory. We show the adapted queueing model, which characterizes the process of logging with the use of a harvesting set consisting of harvesters and forwarders. We also present the experimental verification of the designated model that confirmed mode’s adequacy. The analysis of the effectiveness of the investigated harvesting set was conducted and the recommendations for its optimization were drawn. The research was conducted in the Pryazhinsky District in the Republic of Karelia. We showed that significant improvement of operational efficiency of the investigated harvesting set in the study area cannot be done by adjusting separate machine operations (i.e. by reducing the time of operations execution and their steadiness). However, a change in the number of machines allowed significant improvement in the operational efficiency. The most optimal harvesting set design for the experimental area consisted of two harvesters and two forwarders.

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基于排队理论的森林采伐集优化:以卡累利阿为例

摘要现代木材采伐工艺过程在技术上和组织上都是一个复杂的系统。如今，如果不使用数学建模方法，就不可能研究这类系统并提高其效率。本文提出了一种基于排队理论的日志操作优化方法。我们展示了经过调整的排队模型，它描述了使用由收集器和转发器组成的收集集进行日志记录的过程。并对指定模型进行了实验验证，证实了模型的充分性。对所研究的收获集进行了有效性分析，并提出了优化建议。这项研究是在卡累利阿共和国的普里亚欣斯基区进行的。研究表明，通过调整单独的机器操作(即减少操作执行时间及其稳定性)，无法显著提高研究区域所调查收获集的操作效率。然而，机器数量的变化使操作效率得到了显著提高。试验区最优采收装置设计由两台收割机和两台运输车组成。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Forestry Journal

自引率

0.00%

发文量

审稿时长

4 weeks

期刊介绍： Central European Forestry Journal (published as Lesnícky Èasopis - Forestry Journal until 2016) publishes novel science originating from research in forestry and related braches. Central European Forestry Journal is a professional peer-reviewed scientific journal published 4-time a year. The journal contains original papers and review papers of basic and applied research from all fields of forestry and related disciplines. The editorial office accepts the manuscripts within the focus of the journal exclusively in English language. The journal does not have article processing charges (APCs) nor article submission charges. Central European Forestry Journal, abbreviation: Cent. Eur. For. J., publishes original papers and review papers of basic and applied research from all fields of forestry and related scientific areas. The journal focuses on forestry issues relevant for Europe, primarily Central European regions. Original works and review papers can be submitted only in English language.