Russian Federation
As a result of analyzing current and emerging solutions in the field of hydraulic drives for technological equipment, it has been established that mathematical modeling of operating processes is one of the key tools in the design and research of machines. This study is aimed at reducing energy consumption and minimizing dynamic loads in the boom lifting mechanism of a log truck manipulator. To achieve this, an energy-efficient hydraulic drive is proposed, with a model that accounts for the volumetric stiffness of the system. As part of the boom mechanism upgrade, the design includes the installation of a pair of twin hydraulic cylinders, one of which is connected to a hydraulic accumulator. A distinctive feature of the system is that the accumulator operates independently, without being connected to the pump for recharging. Once fully charged by the recovery-mode hydraulic cylinder, it connects to a discharge valve and distributor through a system of check valves, allowing the pump to switch to idle mode, thereby reducing energy losses.
hydraulic manipulator, boom lifting mechanism, energy efficiency, dynamic load reduction, hydraulic accumulator, mathematical modeling, pneumo-hydraulic damper
1. Posmetev V. I., Nikonov V. O., Posmetev V. V. Investigation of the energy-saving hydraulic drive of a multifunctional automobile with a subsystem of accumulation of compressed air energy // IOP Conference Series: Materials Science and Engineering. – IOP Publishing, 2018. – T. 441. – №. 1. – S. 012041.doi: 10.1088 / 1757-899x / 441/1/012041, (2018).
2. Lagerev, A.V. Modelirovanie rabochih processov v drossel'no-reguliruemom gidroprivode manipulyacionnyh sistem mobil'nyh mashin pri razdel'nom dvizhenii zven'ev / A.V. Lagerev, I.A. Lagerev // nauchno-tehnicheskiy vestnik bryanskogo gosudarstvennogo universiteta. – 2018. - №4. –s. 355-379. – URL: https://cyberleninka.ru/article/n/modelirovanie-rabochih-protsessov-v-drosselno-reguliruemom-gidroprivode-manipulyatsionnyh-sistem-mobilnyh-mashin-pri-razdelnom.
3. Popikov, P.I. Obosnovanie komponovki i parametrov gidroprivoda mehanizma pod'ema lesnogo manipulyatora / P.I. Popikov, I.D. Evsikov // Aktual'nye napravleniya nauchnyh issledovaniy XXI veka: teoriya i praktika. - 2019. - T. 7, № 3 (46). - S. 226-231.
4. Evsikov, I.D. Obosnovanie aksiom formalizovannoy modeli dvizheniya strely lesnogo manipulyatora / I.D. Evsikov, P.I. Popikov, N.S. Kamalova // Voronezhskiy nauchno-tehnicheskiy vestnik. - 2020. - T. 2, № 2 (32). - S. 4-10. – URL: http://vestnikvglta.ru/arhiv/2020/2-32-2020/4-10.pdf.
