Power transmission in off-road machinery has traditionally relied on fluid power systems, where an internal combustion engine drives hydraulic pumps. This research, a collaboration between the Guangdong Technion-Israel Institute of Technology (GTIIT) in China, the University of Naples Federico II, and the University of Sannio in Italy, focuses on the development of the hydraulic circuit of an 8-ton excavator housed in the GTIIT’s Fluid-Powered Robotics Laboratory. The excavator is powered by a 3.17-liter diesel internal combustion engine and relies on a load-sensing system. The objective of this study is to develop a high-fidelity numerical model of the excavator’s hydraulic control valves. The model was created using a lumped parameter approach and validated through experimental testing on the actual machine performed at GTIIT. The ultimate goal of this work is to establish the foundation for a complete model of the excavator’s hydraulic system to modify the power supply type to alternative fuels and, consequently, adapt the hydraulic actuation system. This paper, based on experimental data, has successfully validated a critical part of the entire excavator model.
Analysis, Modeling, and Testing the Control Valves of an 8-Ton Excavator
Frosina, Emma;
2025-01-01
Abstract
Power transmission in off-road machinery has traditionally relied on fluid power systems, where an internal combustion engine drives hydraulic pumps. This research, a collaboration between the Guangdong Technion-Israel Institute of Technology (GTIIT) in China, the University of Naples Federico II, and the University of Sannio in Italy, focuses on the development of the hydraulic circuit of an 8-ton excavator housed in the GTIIT’s Fluid-Powered Robotics Laboratory. The excavator is powered by a 3.17-liter diesel internal combustion engine and relies on a load-sensing system. The objective of this study is to develop a high-fidelity numerical model of the excavator’s hydraulic control valves. The model was created using a lumped parameter approach and validated through experimental testing on the actual machine performed at GTIIT. The ultimate goal of this work is to establish the foundation for a complete model of the excavator’s hydraulic system to modify the power supply type to alternative fuels and, consequently, adapt the hydraulic actuation system. This paper, based on experimental data, has successfully validated a critical part of the entire excavator model.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
