Energy Efficiency of Pressure Shock Damper in the Hydraulic Lifting and Leveling Module

This study evaluates the energy efficiency of pressure shock damping in a hydraulic lifting and leveling (HLL) module mobile robotic bricklaying system (RBS). The HLL includes servohydraulic actuator (SHA) damper (HSD). proposed adjustable HSD consists accumulator circuit (HAC) proportional valve. frequency characteristics impedance indices were used to evaluate effectiveness damping. dynamic responses SHA with without analyzed based on nonlinear state-space model. To control SHA-HSD system, linear quadratic Gaussian (LQG) controller that follows two measurement signals was implemented. LQG adapted specific requirements nature RBS loads. evaluated during operation under laboratory conditions. main purpose this dynamically stabilize leveled robot base subjected loading automatic RBS.