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These works are licensed under a Creative Commons Attribution 4.0 International License. S.P. Ageev, A.N. Minaev, S.I. Roshchina Complete text of the article:Download article (pdf, 0.6MB )UDС621.311DOI:10.17238/issn05361036.2019.3.121AbstractNature of woodworking processes is dramatically influenced by various random factors. Mathematically, these processes should be considered as one of accidental types. The most energyintensive process is sawmilling. Here, saw frame and frame equipment comprise a separate section, which largely forms the electricity consumption nature of product line and the whole plant. Therefore, the issues of improving the energy efficiency of woodworking industry can be solved only by joint consideration of the technological and energy parameters of wood sawing. The research purpose is a probabilitytheoretical analysis of relationship between the saw frames operating parameters, as well as finding the distribution laws and numerical ratings of these parameters as random variables when sawing the sort log load. The queuing system is used as a mathematical model of the saw frame cutting mechanism. The application of the probability theory has allowed us to find the distribution density and numerical characteristics of the effective time; hourly average sawing raw material output; hourly average power consumption, energy losses in the network; absolute and specific power consumption in conjunction with the geometric parameters of raw materials and operation parameters of saw frame mode. Electricity consumption parameters have probabilistic nature and are distributed by law, different from normal. The density of parameters distribution was approximated by the density of the Gauss’ law in order to simplify the analysis procedure. Herewith, the error of approximation was not more than 1.71 %. Formulas for calculating the values of technological and energy parameters of saw frames operation are proposed.AuthorsS.P. Ageev^{1}, Doctor of Engineering, Assoc. Prof.; Publons: 1758124/sergeyageev, ORCID: 0000000303626722A.N. Minaev^{2}, Doctor of Engineering, Assoc. Prof. S.I. Roshchina^{3}, Doctor of Engineering, Assoc. Prof. Affiliation^{1}Saint Petersburg State University of Architecture and Civil Engineering ul. 2ya Krasnoarmeyskaya, 4, Saint Petersburg, 190005, Russian Federation;еmail: doсtor.mart11@mail.ru ^{2}St. Petersburg State Forest Technical University named after S.M. Kirov, prosp. Institutskiy, 5, Saint Petersburg, 194021, Russian Federation; email: stl@spbftu.ru ^{3}Vladimir State University named after Alexander and Nikolai Stoletovs, ul. Gor’kogo, 87, Vladimir, 600000, Russian Federation; email: rsi3@mail.ru Keywordssaw frame, sort load of logs, energy input, power consumption, energy losses, probability distribution, sawn raw material parametersFor citationAgeev S.P., Minaev A.N., Roshchina S.I. Probability Analysis of Relations between Operation Mode Parameters of Saw Frames. Lesnoy Zhurnal [Forestry Journal], 2019, no. 3, pp. 121–131. DOI: 10.17238/issn05361036.2019.3.121References1. Ageev S.P. Mathematical Modeling of Sawing Wood Processes. Izvestia SanktPeterburgskoj Lesotehniceskoj Akademii [News of the Saint Petersburg State Forest Technical Academy], 2007, iss. 179, pp. 142–152.2. Ageev S.P. Energetic Characteristic of Cutting Mechanism of Frame Saw. Lesnoy Zhurnal [Forestry Journal], 2009, no 1, pp. 95–100. 3. Ageev S.P. Energy Characteristic of Electric Drive for Cutting Mechanism of Saw Frame. Lesnoy Zhurnal [Forestry Journal], 2009, no 2, pp. 96–101. 4. Ageev S.P. 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