ELASTIC CHARACTERISTICS OF HYDRAULIC LINES OF EXCAVATOR MANIPULATOR EO-2621
The article considers the hydraulic mains of the boom, handle and bucket drive of the excavator EO-2621. Their stiffness coefficients are determined. The dependences of these coefficients on the position of the manipulator’s links, the pressure of the liquid in the supply lines and the temperature of the working fluid are established. The received data allow to construct a dynamic model of the manipulator taking into account the rigidity of its hydraulic system.