Dependence of the volume yield of sawn work on the number of their thickness in the set
https://doi.org/10.53374/1993-0135-2023-3-257-261
Abstract
When designing the production processes of large sawmills with batch handling of sawn timber, there is a question of optimizing the number of thicknesses of boards in a set. Currently, the problem of choosing the number of thicknesses in the set is getting a new sound, since log sawing equipment with flexible sets is becoming more widespread in sawmilling, when the optimal set is automatically set for each log in accordance with its shape and size. This sort of assortment optimization is once again pushing sawmills to increase the number of thicknesses in the set. When designing the production processes of large sawmills with batch handling of sawn timber, there is a question of optimizing the number of thicknesses of boards in a set. Currently, the problem of choosing the number of thicknesses in the set is getting a new sound, since log sawing equipment with flexible sets is becoming more widespread in sawmilling, when the optimal set is automatically set for each log in accordance with its shape and size. This sort of assortment optimization is once again pushing sawmills to increase the number of thicknesses in the set. The tightening of restrictions from “no more than 4 thicknesses in the set” to “no more than 3” leads to a decrease in volumetric yield from 0 to 0.2072 %, and – from “no more than 3” to “no more than 2-x” – from 0 to 1.2639 %. The transition to the restriction “no more than 1 thickness” from “no more than 2” causes a very significant decrease in volume output by 3.6760 ... 6.5691 %. If it is possible to neglect the decrease in volume yield to 0.2 %, then four-thickness fittings should be excluded from consideration, and if it is acceptable for reasons of harmonization of the production process to reduce the yield to 1.3 %, then it is advisable to also refuse three-thickness fittings. With some combinations of log sizes, when switching to small-thickness logs, a jump in volume output losses is observed.
About the Authors
V. V. Ogurtsov
Reshetnev Siberian State University of Science and Technology
Russian Federation
Russian Federation
31, Krasnoyarskii rabochii prospekt, Krasnoyarsk, 660037
E. V. Kargina
Reshetnev Siberian State University of Science and Technology
Russian Federation
Russian Federation
31, Krasnoyarskii rabochii prospekt, Krasnoyarsk, 660037
I. S. Matveeva
Reshetnev Siberian State University of Science and Technology
Russian Federation
Russian Federation
31, Krasnoyarskii rabochii prospekt, Krasnoyarsk, 660037
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Review
For citations:
Ogurtsov V.V., Kargina E.V., Matveeva I.S. Dependence of the volume yield of sawn work on the number of their thickness in the set. Conifers of the boreal area. 2023;41(3):257-261. (In Russ.) https://doi.org/10.53374/1993-0135-2023-3-257-261
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