Morphological Analysis and Optimization of Technological Process for Rip Cutting of Round Timber. P. 132–145

Complete text of the article:

Download article (pdf, 0.8MB )

UDС

674.02

DOI:

10.37482/0536-1036-2023-2-132-145

Abstract

Coniferous sawn timber is extensively used in construction. However, the dimensional and qualitative composition of the round timber for lumber production has recently deteriorated significantly. The number of sawn logs with a diameter of 14–20 cm represents barely 50 % of the total supply of raw materials for sawmills. Besides that, large-diameter logs frequently have some signs of decay, which is mostly heartwood rot. Thus, the sawlog must be handled with caution. The problem is to intensify the sawing process, especially when logs have a presence of heartwood rot. This is possible to achieve with the implementation of modern technological sawing processes and specified equipment. A method of morphological research is used to select flowsheet diagrams of sawing and construction solutions for rip cutting equipment. The completeness of the morphological table is determined by the sum of all properties of the concept objects and is evaluated by obtaining effective technological and constructive solutions. According to the morphological method, a procedure of search systematization is developed. The patent search identified the main protective and published application documents concerning programs about ripping machines for round timber. The flowsheet diagrams for rip cutting of round timber and operational schemes for the equipment are adjusted according to the discovered regularities. A new sawing program is proposed in order to improve the efficiency of the equipment. It was licensed under a national patent of the Russian Federation. The evaluation of the possibility of implementing the technological process is made by analyzing the target costs for the production arrangement, the production rate per shift, and the quality of the final products. The proposed method for selecting directions to intensify the rip cutting of round timber gives the possibility to determine the effective technological and technical decisions at a project’s preliminary problem-solving stage.

Authors

Aleksandr S. Toropov¹, Doctor of Engineering, Prof.; ORCID: https://orcid.org/0000-0003-4414-2505
Viktor E. Byzov^2*, Candidate of Engineering, Assoc. Prof.; ORCID: https://orcid.org/0000-0002-2078-5226

Affiliation

¹Volga State University of Technology, pl. Lenina, 3, Yoshkar-Ola, Mari El Republic, 424000, Russian Federation; Toropov_A_S@mail.ru
²St. Petersburg State Forest Technical University named after S.M. Kirov, Institutskiy per., 5, Saint Petersburg, 194021, Russian Federation; mapana@inbox.ru*

Keywords

round timber, intensification of timber rip cutting, morphological studies, flowsheet diagram of sawing, construction solution for equipment, sawing optimization

For citation

Toropov A.S., Byzov V.E. Morphological Analysis and Optimization of Technological Process for Rip Cutting of Round Timber. Lesnoy Zhurnal = Russian Forestry Journal, 2023, no. 2, pp. 132–145. (In Russ.). https://doi.org/10.37482/0536-1036-2023-2-132-145

References

1. Agapov A.I. Optimization of Sawlog Cutting with Three Bars Output. Kirov, Vyatka State University Publ., 2019. 478 p. (In Russ.).

2. Ivanov A.V. Technology of Longitudinal Cutting of Round Timber. Nauka bez granits = Science Without Borders, 2020, no. 6(46), pp. 62–66. (In Russ.).

3. Kravtsov E.V., Karpukhin G.A. Features of Technological Solutions in the Organization of Production Elements of Housing from Low-Grade Wood. Lesnoy vestnik = Forest Bulletin, 2011, no. 5, pp. 93–97. (In Russ.).

4. Ogurtsov V.V., Kargina E.V., Matveeva I.S. Dependence of the Lumber Volume Output and Their Production Profitability on Divisibility of Log Thickness Sorting Concerning Its Curvature. Khvoynyye boreal’noy zony = Conifers of the Boreal Area, 2013, no. 5-6, pp. 71–75. (In Russ.).

5. Oldrin V.M. Method of Morphological Analysis of Technical Systems. Moscow, All-Russian Scientific Research Institute of Patent Information Publ., 1989. 312 p. (In Russ.).

6. Toropov A.S., Mikryukova E.V., Sharapov E.S., Toropov S.A., Byzov V.E., Sedykh M.A. Method for Obtaining Structural Lumber from Round Timber with Heartwood Rot. Patent RF, no. RU 2654720 C1, 2018. (In Russ.).

7. Prokofyev G.F. Intensification of Wood Sawing on Frame Headrig Sawing Lines and Band Saws. Derevoobrabativaushaya promishlennost’, 1990, no. 9, pp. 6–10. (In Russ.).

8. Prokofyev G.F., Dundin N.I. The Main Directions of Intensification of Wood Processing on Sawmill Equipment. Lesnoy Zhurnal = Russian Forestry Journal, 2004, no. 3, pp. 65–72. (In Russ.). http://lesnoizhurnal.ru/upload/iblock/91b/91b43ab31325ae20895d-468653c1a204.pdf

9. Stukach O.V. The Software Package “Statistica” in Solving Quality Management Problems. Tomsk, Tomsk Polytechnic University Publ., 2011. 163 p. (In Russ.).

10. Toropov A.S. Study on the Subject of Forestry Exploitation Labor: Laboratory Operational Manual. Yoshkar-Ola, MarGTU Publ., 1995. 16 p. (In Russ.).

11. Toropov A.S., Toropov S.A., Mikryukova E.V. Investigation of Wood Affected by Stump Rot. Lesnoy Zhurnal = Russian Forestry Journal, 2009, no. 4, pp. 95–100. (In Russ.). http://lesnoizhurnal.ru/upload/iblock/eb2/eb2a4ad3da8cb6509a4164b19962c3e3.pdf

12. Baltrušaitis A., Pranckevičienė V. The Influence of Log Offset on Sawn Timber Volume Yield. Materials Science, 2005, vol. 11, no. 4, pp. 403–406.

13. Ikonen V.P., Kellomäki S., Peltola H. Linking Tree Stem Properties of Scots Pine (Pinus sylvestris L.) to Sawn Timber Properties Through Simulated Sawing. Forest Ecology and Management, 2003, vol. 174, no. 1-3, pp. 251–263. https://doi.org/10.1016/S0378–1127(02)00035–X

14. Koch P. Wood Machining Processes. New York, Ronald Press Co. Publ., 1964. 530 p.

15. Kollman F., Cote W.A.Jr. Principles of Wood Science and Technology: Solid Wood. Berlin Heidelberg, Springer Publ., 1968. https://doi.org/10.1007/978-3-642-87928-9

16. Orlowski K.A., Chuchala D., Szczepanski M., Migda W., Wojnicz W., Sandak J. Lateral Forces Determine Dimensional Accuracy of the Narrow-Kerf Sawing of Wood. Scientific Reports, 2022, vol. 12, no. 1, p. 86. https://doi.org/10.1038/s41598–021–04129–3

17. Parra Galvez J.L.A., Borenstein D., da Silveira Farias E. Application of Optimization for Solving a Sawing Stock Problem with a Cant Sawing Pattern. Optimization Letters, 2018, vol. 12, no. 8, pp. 1755–1772. https://doi.org/10.1007/s11590–017–1178–x

18. Ross R.J., Brashaw B.K., Wang X., White R.H., Pellerin R.F. Wood and Timber Condition Assessment Manual. Madison, WI: Forest Products Society Publ., 2004. 74 p.

19. Sandberg D. Value Activation: A Concept for New Applied Processing Technology Star-Sawing Technique. Proceedings of the International Conference on Value-Added Wood Processing, Nov. 13–14, 1997. Vancouver, BC Canada, 1997, pp. 1–10.

20. Sandberg D. Radially Sawn Timber – the Primwood Method for Improved Properties. European Journal of Wood and Wood Products, 2005, vol. 63, no. 2, pp. 94–101. http://dx.doi.org/10.1007/s00107–004–0531–9

21. Shanin I.I. Definition of Factors Influencing Innovative Development of Enterprises of Timber Processing Complex. Proceedings of the International Conference “Economy in the Modern World” (ICEMW 2018). Atlantis Press, 2018, pp. 205–209. https://doi.org/10.2991/icemw–18.2018.38

22. Shenga P.Ah., Bomark P., Broman O., Sandberg D. Log Sawing Positioning Optimization and Log Bucking of Tropical Hardwood Species to Increase the Volume Yield. Wood Material Science and Engineering, 2017, vol. 12, no. 4, pp. 257–262. https://doi.org/10.1080/17480272.2016.1275788

23. Szczawinski M., Biernacka J. Valuation of Experimental Sawing of Low-Grade Pine Logs (WCO). Engineering, 2010. pp.127–130.

24. Todoroki Chr., Rönnqvist M. Log Sawing Optimization Directed by Market Demands. NZ Journal of Forestry, February, 2001, pp. 29–33.

25. Todoroki Chr., Rönnqvist M. Dynamic Control of Timber Production at a Sawmill with Log Sawing Optimization. Scandinavian Journal of Forest Research, 2002, vol. 17, no. 1, pp. 79–89. https://doi.org/10.1080/028275802317221118

26. Yerbury M.D., Cooper R.J. Curve Sawing Spruce Sawlogs Containing Sweep Can Reduce Drying Distortion When Compared with Conventional Sawing. Forestry, England, London, 2010, vol. 83, no. 4, pp. 443–450. https://doi.org/10.1093/forestry/cpq026