Stresses of the power plant of a feller buncher during operation of a feller head with a disk saw
https://doi.org/10.21266/2079-4304.2023.246.311-319
Abstract
The article develops the dynamic loading of the power plant of a feller buncher machine, equipped with a feller head with a disk saw, during the acceleration of the saw blade. A mathematical model has been developed that allows, at the design stage of a compact feller buncher machine, to determine the magnitude of a significant dynamic moment existing on the machine’s power plant. The mathematical description is in the form of the Lagrange equation of the second kind. An example of calculating a mathematical model for a LP-19F feller buncher machine equipped with an FMG-Timberjack feller head with a disk saw is given. The presented graph of changes in the additional dynamic moment at system acceleration times of 0.3, 0.5 and 0.8 s. Analysis of the research results showed that the amount of additional dynamic moment in the saw blade acceleration modes is insignificant. With an acceleration time of 0.3 s, the maximum value of the additional dynamic moment is only 7.6 N·m.
About the Authors
I. A. Zverev
St.Petersburg State Forest Technical University
Russian Federation
Russian Federation
ZVEREV Igor A. – assistant of Forestry engineering, service and repair department
194021. Institute per. 5. St. Petersburg
V. A. Aleksandrov
St.Petersburg State Forest Technical University
Russian Federation
Russian Federation
ALEKSANDROV Valentin A. – DSc (Technical), professor of Forestry engineering, service and repair department
194021. Institute per. 5. St. Petersburg
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Review
For citations:
Zverev I.A., Aleksandrov V.A. Stresses of the power plant of a feller buncher during operation of a feller head with a disk saw. Izvestia Sankt-Peterburgskoj lesotehniceskoj akademii. 2023;(246):311-319. (In Russ.) https://doi.org/10.21266/2079-4304.2023.246.311-319
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