The article is devoted to the reduction of dynamic loads on hydraulic drive by optimization of hydraulic cylinder for boom lifting and parameters of new damping device. A mathematical model of the working process of the boom lifting mechanism of serial hydraulic manipulator LV-184A has been solved. The optimal position of the hydraulic cylinder, in which the fluid pressure is reduced from 12.4 MPa to 11.3 MPa, has been found. It takes into account the forces of inertia and compliance of hydraulic drive. Connecting a new damper reduces the maximum pressure in the piston cavity of the hydraulic cylinder by 47%. The minimum of maximum values of the working fluid pressure is achieved when the damper throttle channel diameters are in the range of 4.0–4.5 mm. The aim (reduction of dynamic loads) is achieved by optimizing the configuration of the boom lift cylinders and the parameters of new damper. It significantly increases reliability of hydraulic drive elements and efficiency of manipulator-type machines in forestry complex.

本文致力于通过优化臂架提升液压缸和新型阻尼装置的参数来降低液压驱动的动态载荷。求解了系列液压机械手LV-184A臂架提升机构工作过程的数学模型。已找到液压缸的最佳位置，其中流体压力从 12.4 MPa 降低到 11.3 MPa。它考虑了惯性力和液压驱动的顺应性。连接新的阻尼器可使液压缸活塞腔内的最大压力降低 47%。当阻尼器节流通道直径在 4.0-4.5 mm 范围内时，工作流体压力的最小值达到最大值。通过优化动臂提升油缸的配置和新阻尼器的参数来实现目标（减少动态负载）。它显着提高了林业综合体中液压驱动元件的可靠性和机械手型机器的效率。